Solved Past Paper
UHS MDCAT Past Paper 2020
Practice and review UHS MDCAT Past Paper 2020 with verified questions, correct answer keys, and detailed solutions.
Total Questions
192 Qs
Duration Limit
210 Min
Negative Mark
0.00
Attempt Count
0
Solved Questions & Explanations
192 questions with verified answers and explanations
1
If during circular motion, tangential velocity of a body becomes double then centripetal force becomes:
Time Zones and Latitude–Longitude
PYQ
a
Double
b
one half
c
Four Times
d
one fourth
Also appeared in
2
Under what condition an object will have zero displacement but non zero distance?
Guinness World Records (General Knowledge Focus)
PYQ
a
linear motion
b
circular motion
c
random motion
d
Oscillation
Also appeared in
3
Which one of the following properties is not exhibited by the longitudinal wave?
Multi-Polar World
PYQ
a
Interference
b
Reflection
c
Diffraction
d
Polarization
Also appeared in
4
The speed of sound in air is 332 m/s. The speed of sound at 22°C will be:
Guinness World Records (General Knowledge Focus)
PYQ
a
345.2 m/s
b
340 m/s
c
350 m/s
d
330 m/s
Also appeared in
5
Astronomers calculate speed of distant stars and galaxies using which of the following phenomena?
Guinness World Records (General Knowledge Focus)
PYQ
a
beats
b
interference
c
superposition principle
d
Doppler Effect
Also appeared in
6
In a ripple tank, 40 waves pass through a certain point in one second. If the wavelength of the wave is 5 cm, then speed of the wave is:
Guinness World Records (General Knowledge Focus)
PYQ
a
0.5 m/s
b
1 m/s
c
1.5 m/s
d
2 m/s
Also appeared in
7
In which process the entire heat supplied to the gas is converted to the internal energy of the gas?
International Atomic Energy Agency (IAEA)
PYQ
a
Isochoric process
b
isobaric process
c
isothermal process
d
adiabatic process
Also appeared in
8
The internal energy of a system during an isothermal process:
International Atomic Energy Agency (IAEA)
PYQ
a
decreases
b
increases
c
becomes zero
d
remains constant
Also appeared in
9
If the potential at a point which is 1m from a charge is 1 volt, then the potential at a point which is 2m from the same charge will be:
Guinness World Records (General Knowledge Focus)
PYQ
a
2 V
b
1 V
c
0.5 V
d
3 V
Also appeared in
10
The values of electric intensity will ______ due to the presence of dielectric medium:
Guinness World Records (General Knowledge Focus)
PYQ
a
increase
b
increase exponentially
c
decrease
d
remain same
Also appeared in
11
The slope of distance-time graph will always be:
Time Zones and Latitude–Longitude
PYQ
a
positive
b
negative
c
maximum
d
Zero
Also appeared in
12
At what angle of projection of a projectile the range becomes half of its maximum value?
Guinness World Records (General Knowledge Focus)
PYQ
a
15°
b
20°
c
30°
d
40°
Also appeared in
13
If we drop an object, its initial velocity is zero. How far will it fall in time "t"?
Time Zones and Latitude–Longitude
PYQ
a
9.8 t²
b
4.9 t²
c
0.49 t²
d
98 t²
Also appeared in
14
The Newton-second is unit of:
Guinness World Records (General Knowledge Focus)
PYQ
a
work
b
power
c
impulse
d
momentum
Also appeared in
15
A 1.75 m height weight-lifter lifts weights with a mass of 50 kg to a height of 0.5 m above his head. How much work is being done by him? (g=10 m/s²)
Guinness World Records (General Knowledge Focus)
PYQ
a
1250 J
b
250 J
c
100 J
d
50 J
Also appeared in
16
What is the speed of 2.0 kg metallic bob at the mean position of a simple pendulum, when released from its extreme position 0.5 m height? (g=10 m/s²)
Guinness World Records (General Knowledge Focus)
PYQ
a
3.16 m/s
b
10 m/s
c
100 m/s
d
50 m/s
Also appeared in
17
When the speed of your car is halved, by what factor does its kinetic energy decrease?
International Atomic Energy Agency (IAEA)
PYQ
a
1/2
b
1/4
c
1/6
d
1/8
Also appeared in
18
Which one of the following force is non conservative force?
Financial Action Task Force (FATF)
PYQ
a
Frictional force
b
Gravitational force
c
electric force
d
elastic spring force
Also appeared in
19
The Earth rotates on its axis once a day. Suppose, by some process the earth contracts so that its radius is only half as large as present, then how long will the earth take to complete its rotation?
Guinness World Records (General Knowledge Focus)
PYQ
a
6 hours
b
12 hours
c
18 hours
d
24 hours
Also appeared in
20
1 Radian is equal to:
Guinness World Records (General Knowledge Focus)
PYQ
a
57.2°
b
57.1°
c
57.3°
d
57.4°
Also appeared in
21
In transmission from grid station, power losses are minimised by:
Guinness World Records (General Knowledge Focus)
PYQ
a
increasing current
b
decreasing current
c
increasing resistance
d
increasing voltage
Also appeared in
22
The domestic electricity supply has a frequency of:
Guinness World Records (General Knowledge Focus)
PYQ
a
150 Hz
b
100 Hz
c
50 Hz
d
25 Hz
Also appeared in
23
PIV stands for:
Guinness World Records (General Knowledge Focus)
PYQ
a
Positive Inverse voltage
b
Power integrated voltage
c
Peak inverse voltage
d
Peak integrated voltage
Also appeared in
24
In full wave rectification, the number of diodes used is:
Guinness World Records (General Knowledge Focus)
PYQ
a
1
b
2
c
3
d
4
Also appeared in
25
The wavelength associated with an electron is of the order of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Visible light
b
X-rays
c
radio waves
d
infrared
Also appeared in
26
Which photon carries the most energy?
Most Repeated GK MCQs from Past Papers
PYQ
a
Blue
b
violet
c
red
d
green
Also appeared in
27
Which one of the following series lies in the ultraviolet region?
Guinness World Records (General Knowledge Focus)
PYQ
a
Balmer series
b
Paschen series
c
Lyman series
d
Brackett series
Also appeared in
28
The main difference between X rays and gamma rays is?
International Atomic Energy Agency (IAEA)
PYQ
a
frequency
b
wavelength
c
energy
d
origin
Also appeared in
29
There are initially 400 atoms in a radioactive sample. What would be the number of atoms after three half-lives?
Guinness World Records (General Knowledge Focus)
PYQ
a
50
b
100
c
200
d
400
Also appeared in
30
While using radiation therapy, cancerous thyroid is treated with ______ radioisotope:
Guinness World Records (General Knowledge Focus)
PYQ
a
Carbon
b
235-Uranium
c
Thorium
d
iodine-131
Also appeared in
31
In capacitors, energy is stored in the form of:
International Atomic Energy Agency (IAEA)
PYQ
a
Gravitational energy
b
Kinetic energy
c
Electric field
d
Magnetic induction
Also appeared in
32
Ohm times farad is equivalent to:
Time Zones and Latitude–Longitude
PYQ
a
Time
b
Charge
c
Distance
d
Capacitor
Also appeared in
33
One-kilowatt hour is commonly termed as one commercial unit of electric energy which is equal to:
International Atomic Energy Agency (IAEA)
PYQ
a
3.6 x 10⁵ J
b
3.6 x 10⁶ J
c
3.6 x 10⁴ J
d
3.6 x 10³ J
Also appeared in
34
When a wire is compressed and its radius becomes 2R then its resistance will be:
Guinness World Records (General Knowledge Focus)
PYQ
a
16 R
b
4 R
c
1/16 R
d
1/4 R
Also appeared in
35
One of the following is an ohmic device:
Guinness World Records (General Knowledge Focus)
PYQ
a
filament bulb
b
Semiconductor diode
c
transistor
d
copper wire
Also appeared in
36
The change in resistance of metallic conductor at temperature below 0°C is:
Weather, Atmosphere and Temperature
PYQ
a
Non linear
b
Curve
c
linear
d
curvilinear
Also appeared in
37
When currents are flowing through two long parallel wires in same direction, electric field between them:
Ocean Currents and Tides
PYQ
a
strong
b
weak
c
Remains same
d
infinite
Also appeared in
38
Magnetic flux is maximum when angle between magnetic field and vector area is:
Area, Population and Official Languages
PYQ
a
0°
b
45°
c
90°
d
180°
Also appeared in
39
Transformer is a device which steps up or steps down the input:
International Atomic Energy Agency (IAEA)
PYQ
a
Current
b
Voltage
c
energy
d
power
Also appeared in
40
If a stationary bar magnet is placed near a coil at rest and maximum lines of force pass through the coil, the Galvanometer shows:
Important Lines and Boundaries
PYQ
a
Maximum current
b
minimum current
c
No current
d
intermediate value of current
Also appeared in
41
Alkyl halides involving C-X bond breakage and C-Nu bond formation simultaneously would follow the mechanism:
Guinness World Records (General Knowledge Focus)
PYQ
a
SN1
b
SN2
c
E1
d
E2
Also appeared in
42
R-X reaction with alcohols forms:
Financial Action Task Force (FATF)
PYQ
a
R-OH
b
ROR
c
RH
d
R-X-OH
Also appeared in
43
IUPAC name of C6H5O ( CH3)2 is:
Guinness World Records (General Knowledge Focus)
PYQ
a
2-methyl-3-hexanone
b
2,6-Dimethyl cyclohexanone
c
3-methyl cyclohexanone
d
Methoxybenzene (Anisole)
Also appeared in
44
Phenol is known as:
Guinness World Records (General Knowledge Focus)
PYQ
a
Carpolic Acid
b
Carbonylic Acid
c
Carbolic Acid
d
Carboxylic Acid
Also appeared in
45
Phenol is more acidic than alcohols because of the following reason:
Group of Seven (G7)
PYQ
a
Delocalisation of negative charge in the OH group
b
Delocalisation of positive charge on the carbon atom in ring
c
Delocalisation of negative charge in the ring
d
Delocalization of positive charge in the OH group
Also appeared in
46
The common name of following aldehyde Cl-CH₂-CH-CHO | CH₃ is:
Common Market for Eastern and Southern Africa (COMESA)
PYQ
a
α-Methyl-γ-Chloro Propionaldehyde
b
β-Chloro-γ-methyl Propionaldehyde
c
β-Chloro-α-methyl Propionaldehyde
d
β-methyl-α-chloro Propionaldehyde
Also appeared in
47
Which of the following reagent is used to separate purity carbonyl and non-carbonyl compounds:
Guinness World Records (General Knowledge Focus)
PYQ
a
HCN
b
CH₃MgBr
c
NaHSO₃
d
H₂O
Also appeared in
48
Secondary alcohol is the product of reduction of which carbonyl compound?
Guinness World Records (General Knowledge Focus)
PYQ
a
CH₃-C-H (Aldehyde)
b
CH₃-C-CH₃ (Ketone)
c
H-C-H (Formaldehyde)
d
All of these
Also appeared in
49
Which of the following is the strongest acid?
World Leaders in News
PYQ
a
Fluoroethanoic acid
b
Propionic acid
c
Trichloroethanoic acid
d
Nitroethanoic acid
Also appeared in
50
Hydrolysis of acyl chloride results in the formation of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Acid anhydride
b
Carboxylic acid
c
Amides
d
Esters
Also appeared in
51
The exact reactivity order for carboxylic acid derivatives is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Anhydride > Acyl Chloride > ester
b
Ester > Anhydride > Acyl chloride
c
Amide > Acyl chloride > ester
d
Acyl Chloride > Anhydride > ester
Also appeared in
52
Based on the physio-chemical properties, proteins may be classified into the following types:
Guinness World Records (General Knowledge Focus)
PYQ
a
Simple proteins
b
Compound proteins
c
Derived proteins
d
All of the above
Also appeared in
53
Based on function, thyroxin can be classified as:
Guinness World Records (General Knowledge Focus)
PYQ
a
Hormonal protein
b
Transport protein
c
Structural protein
d
Genetic protein
Also appeared in
54
L-Asparaginase enzyme has been used for the treatment of:
Famous Seas
PYQ
a
Jaundice
b
Blood Cancer
c
Rickets
d
Heart disease
Also appeared in
55
Potassium, Rubidium, Cesium react with oxygen to form which types of oxides?
Guinness World Records (General Knowledge Focus)
PYQ
a
Peroxide
b
Superoxide
c
Suboxide
d
Normal Oxide
Also appeared in
56
Magnesium reacts with Nitrogen to form:
Guinness World Records (General Knowledge Focus)
PYQ
a
Mg₂N₂
b
Mg₃N₂
c
MgN₂
d
MgN
Also appeared in
57
Densities of alkali metals are low due to:
International Atomic Energy Agency (IAEA)
PYQ
a
Weak intermolecular forces
b
Large atomic volume
c
Smaller size
d
ns¹ Configuration
Also appeared in
58
In 3rd series of transition elements, paramagnetic behaviour is maximum for Mn²⁺ and:
Guinness World Records (General Knowledge Focus)
PYQ
a
Cr³⁺
b
Ti³⁺
c
V³⁺
d
Zn²⁺
Also appeared in
59
Electronic configuration of chromium (Proton number 24) is:
Guinness World Records (General Knowledge Focus)
PYQ
a
[Ar]3d⁴4s²
b
[Ar]3d⁵4s²
c
[Ar]3d⁵4s¹
d
[Ar]3d⁶4s²
Also appeared in
60
The transition element which does not show variable valency is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Cu
b
Sc
c
Zn
d
Cr
Also appeared in
61
Select the organic compound which belongs to Arene family:
Guinness World Records (General Knowledge Focus)
PYQ
a
CH₂=CH₂
b
CH₃-O-CH₃
c
CH₃-NH₂
d
C₆H₆
Also appeared in
62
The type of isomerism existing in a compound of molecular formula C₂H₆O is:
Group of Seven (G7)
PYQ
a
Functional group
b
Position
c
Chain
d
Metamerism
Also appeared in
63
Generic formula of cycloalkane is?
Guinness World Records (General Knowledge Focus)
PYQ
a
CₙH₂ₙ₊₂
b
CₙH₂ₙ
c
CₙH₂ₙ₋₂
d
CₙH₂ₙ₊₁
Also appeared in
64
Electrophile in sulphonation of benzene is:
Guinness World Records (General Knowledge Focus)
PYQ
a
HSO₄⁻
b
H₂SO₄
c
SO₃
d
HSO₃⁻
Also appeared in
65
The following has IUPAC name of: CH₃-CH₃ | CH₃-C-C-CH₂-CH₃ | CH₃-CH₃
Guinness World Records (General Knowledge Focus)
PYQ
a
2,3-tetramethyl butane
b
2,2,3,3-tetramethyl pentane
c
3,3,4,4-tetramethyl butane
d
3,4-bis(dimethyl) butane
Also appeared in
66
Acetophenone can be formed by which of the following reaction of benzene?
Financial Action Task Force (FATF)
PYQ
a
Alkylation
b
Acylation
c
Halogenation
d
Nitration
Also appeared in
67
In alkanes, each Carbon has hybridization:
Guinness World Records (General Knowledge Focus)
PYQ
a
sp³
b
sp
c
sp²
d
dsp²
Also appeared in
68
When CH₃ is attached with the benzene ring, it makes the ring:
Guinness World Records (General Knowledge Focus)
PYQ
a
Good electrophile
b
Good nucleophile
c
Resonance hybrid
d
Extraordinary stable
Also appeared in
69
Which of the following reaction has greater Kp than Kc (Kp > Kc)?
Financial Action Task Force (FATF)
PYQ
a
2NO + CL₂ ⇋ 2NOCL
b
2SO₂ + O₂ ⇋ 2SO₃
c
2NOCL ⇋ 2NO + CL₂
d
NO₂ + 3H₂ ⇋ 2 NH₃
Also appeared in
70
The equation N2g + 3H2g = 2NH3, represents:
Guinness World Records (General Knowledge Focus)
PYQ
a
Contact process
b
Haber's process
c
Solvay process
d
Avogadro's law
Also appeared in
71
The unit of the rate constant is the same as that of the rate of reaction in:
Financial Action Task Force (FATF)
PYQ
a
Zero order reaction
b
First order reaction
c
Second order reaction
d
Third order reaction
Also appeared in
72
The study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as:
World Leaders in News
PYQ
a
Thermodynamics
b
Stoichiometry
c
Electrochemistry
d
Chemical Kinetics
Also appeared in
73
For the reaction A(g) --> products, when the concentration of 'A(g)' doubles, the rate of reaction increases four folds, which means it is:
Financial Action Task Force (FATF)
PYQ
a
First order reaction
b
Negative order reaction
c
Zero order reaction
d
Second order reaction
Also appeared in
74
For which of the following order of the reaction, rate of reaction is inversely proportional to the concentration?
Financial Action Task Force (FATF)
PYQ
a
1st order reaction
b
2nd order reaction
c
Negative order of reaction
d
Zero order of reaction
Also appeared in
75
The thermal energy at constant pressure is called:
International Atomic Energy Agency (IAEA)
PYQ
a
Enthalpy
b
Internal energy
c
Heat capacity
d
Work done
Also appeared in
76
Born-Haber cycle is used to determine the lattice energies of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Molecular solids
b
Metallic solids
c
Ionic solids
d
Covalent solids
Also appeared in
77
One calorie is equal to:
Guinness World Records (General Knowledge Focus)
PYQ
a
4.18 KJ
b
4.18 J
c
0.418 KJ/mol
d
0.418 KJ
Also appeared in
78
The oxidation state of 'S' in S₂O₃²⁻ is:
Guinness World Records (General Knowledge Focus)
PYQ
a
-2
b
+2
c
+4
d
+6
Also appeared in
79
The common oxidation number of halogens is:
Common Market for Eastern and Southern Africa (COMESA)
PYQ
a
+1
c
-1
d
-2
Also appeared in
80
During oxidation process, oxidation number of an element:
Guinness World Records (General Knowledge Focus)
PYQ
a
Decreases
b
Increases
c
Remains constant
d
Both A & B
Also appeared in
81
Which of the following has the highest value of electronegativity?
Highest and Lowest Points
PYQ
a
I
b
Br
c
Cl
d
F
Also appeared in
82
Which of the following hybrid orbitals has maximum 'S' -character?
Guinness World Records (General Knowledge Focus)
PYQ
a
Sp³ - hybrid orbital
b
Sp² - hybrid orbital
c
Sp - hybrid orbital
d
dsp² - hybrid orbital
Also appeared in
83
The first ionization energy is maximum for:
International Atomic Energy Agency (IAEA)
PYQ
a
Na
b
Mg
c
Al
d
K
Also appeared in
84
The efficiency of chemical reaction can be expressed as:
Financial Action Task Force (FATF)
PYQ
a
Theoretical yield
b
Actual yield
c
% yield
d
Maximum yield
Also appeared in
85
In a vessel, 10g N₂, 10g H₂ and 10g O₂ are present. Which one will have least number of atoms?
East African Community (EAC)
PYQ
a
H₂
b
N₂
c
O₂
d
All equal
Also appeared in
86
The empirical formula of Glucose C₆H₁₂O₆ is:
Guinness World Records (General Knowledge Focus)
PYQ
a
C₆H₁₂O₆
b
CHO
c
CH₂O
d
CH₂O₂
Also appeared in
87
The relationship between quantum number n and l is:
Relations Between Major Powers
PYQ
a
n = l - 1
b
l = n - 2
c
l = n - 1
d
n = l - 2
Also appeared in
88
Quantum number values for '2p' orbitals are:
Guinness World Records (General Knowledge Focus)
PYQ
a
n=2, l=1
b
n=1, l=2
c
n=1, l=0
d
n=2, l=0
Also appeared in
89
Which pair has 1 electron in its 's' orbital?
Guinness World Records (General Knowledge Focus)
PYQ
a
Li, Fe
b
Na & Cr
c
K & Mn
d
H & He
Also appeared in
90
Which of the following has the lowest e/m ratio?
Highest and Lowest Points
PYQ
a
Li²⁺
b
H⁺
c
He
d
Be
Also appeared in
91
According to the general gas equation density of an ideal gas depends upon:
Weather, Atmosphere and Temperature
PYQ
a
Pressure
b
Temperature
c
Molar mass of the gas
d
All of the above
Also appeared in
92
The actual volume of gas molecules is considered negligible at following pressures:
Guinness World Records (General Knowledge Focus)
PYQ
a
2 atm
b
4 atm
c
6 atm
d
8 atm
Also appeared in
93
CO₂ and SO₂ both are triatomic molecules but heat of vaporization of SO₂ is greater than that of CO₂ due to:
Multi-Polar World
PYQ
a
High electronegativity of S
b
Greater size of SO₂
c
SO₂ is polar and CO₂ is non-polar
d
SO₂ is more acidic than CO₂
Also appeared in
94
Which of the following has the lowest vapour pressure at 20°C?
Highest and Lowest Points
PYQ
a
Diethyl ether
b
Chloroform
c
Carbon tetrachloride
d
Water
Also appeared in
95
Which of the following is not a molecular solid?
Guinness World Records (General Knowledge Focus)
PYQ
a
Bromine
b
Sulphur
c
Phosphorus
d
Carbon dioxide
Also appeared in
96
The lattice energy is also called as:
International Atomic Energy Agency (IAEA)
PYQ
a
Energy of affinity
b
Bond energy
c
Crystal energy
d
Potential energy
Also appeared in
97
For a gaseous phase reaction, when number of moles of reactants and products are equal:
Financial Action Task Force (FATF)
PYQ
a
The values of Kp and Kc are different
b
The value of Kp is greater than Kc
c
The value of Kc is greater than Kp
d
The values of Kp and Kc are the same
Also appeared in
98
Purification of table salt (NaCl) by passing HCl gas through its saturated aqueous solution is an example of:
Financial Action Task Force (FATF)
PYQ
a
Law of mass action
b
Hess's law
c
Common ion effect
d
Henry's law
Also appeared in
99
We prefer fruits___ sweets ?
Guinness World Records (General Knowledge Focus)
PYQ
a
To
b
On
c
Over
d
From
Also appeared in
100
Choose the correct spelling ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Exactuated
b
Axantuated
c
Accenchuated
d
Accentuated
Also appeared in
101
The Headmaster___ to speak to you ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Wants
b
Is wanting
c
Was wanting
d
Want
Also appeared in
102
Choose the correct option: Knowledge and wisdom___ no time for connection?
Guinness World Records (General Knowledge Focus)
PYQ
a
Has
b
Have
c
Had
d
Are
Also appeared in
103
Identify the errors and choose the correct option
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
I hope this letters finds in the best of your spirits
b
I hope this letter will find you in good of high spirits
c
I hope this letter finds you in best of your spirit
d
I hope letter finds you in the best of spirits
Also appeared in
104
Fill in the blank with the appropriate article as required. __Umbrella is of no avail against a thunderstorm ?
Guinness World Records (General Knowledge Focus)
PYQ
a
The
b
A
c
An
d
No article required
Also appeared in
105
Choose the correct sentence ?
Guinness World Records (General Knowledge Focus)
PYQ
a
I wish I were a millionaire
b
I wish I was a millionaire
c
I wish I am being a millionaire
d
I wish I have been a millionaire
Also appeared in
106
Choose the correctly structured sentence.
Earth’s Structure and Geological Features
PYQ
a
Had he lives in England he had missed his family
b
Had he lived in England, he would have missed his family
c
Had he live in England he will missed his family
d
Had he lived in England he would miss his family
Also appeared in
107
She always carried an umbrella. The sentence indicates ______ tense.
Guinness World Records (General Knowledge Focus)
PYQ
a
Present tense
b
Past simple
c
Past perfect
d
Present perfect
Also appeared in
108
Ahmed ______ me for a long time ?
Time Zones and Latitude–Longitude
PYQ
a
Know
b
Have known
c
Knows
d
Knew
Also appeared in
109
Pick the correct option: his first inning consists of four 6s and three 4s ?
Guinness World Records (General Knowledge Focus)
PYQ
a
His first inning's consists of four 6 and three 4
b
His first innings consist of four 6's and three 4's
c
His first innings consist of four 6's and three 4's
d
His first inning's consist of four 6's and three 4's
Also appeared in
110
Choose the correctly punctuated sentence:
Guinness World Records (General Knowledge Focus)
PYQ
a
What a fall was there, my countrymen! Long live the king!
b
What a fall was there! My countrymen. Long live the King!
c
What a fall was there, my countrymen, Long live the king.
d
What a fall was there, my countrymen, Long live the king
Also appeared in
111
Choose the correct option:
Guinness World Records (General Knowledge Focus)
PYQ
a
He and I was playing
b
He and I were playing
c
He and I was being playing
d
He and I were being playing
Also appeared in
112
Not only the parents but also their son ___ for interview ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Has called
b
Have called
c
Have been called
d
Has been called
Also appeared in
113
When the temperature of the body surrounding rises, body responds by ?
Weather, Atmosphere and Temperature
PYQ
a
Vasoconstriction
b
Vasodilation
c
Shivering
d
Raising body hairs
Also appeared in
114
The excretion of hypertonic urine in humans is associated best with the?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Glomerular capsule
b
Proximal convoluted tubule
c
Loop of Henle
d
Distal convoluted tubule
Also appeared in
115
In humans, the temperature regulation control center is located in ?
Weather, Atmosphere and Temperature
PYQ
a
Kidneys
b
Brain
c
Lungs
d
Liver
Also appeared in
116
As an excretory organ, liver?
Guinness World Records (General Knowledge Focus)
PYQ
a
Detoxifies many chemical poisons
b
Produces ammonia for excretion by the kidneys
c
Produces urea from nitrogen of amino acids
d
All of the above
Also appeared in
117
The active uptake of sodium in the ascending limb or thick loop of Henle is promoted by the action of?
Financial Action Task Force (FATF)
PYQ
a
Aldosterone
b
Thyroxine
c
ADH
d
Cortisone
Also appeared in
118
Which of the following muscles are considered as 'Voluntary Muscles'?
Guinness World Records (General Knowledge Focus)
PYQ
a
Smooth muscles
b
Cardiac muscles
c
Skeletal muscles
d
Glandular muscles
Also appeared in
119
Which one of the following is 'myogenic' type of muscle?
Guinness World Records (General Knowledge Focus)
PYQ
a
Glandular muscles
b
Cardiac muscles
c
Skeletal muscles
d
Smooth muscles
Also appeared in
120
What do we call the cell surface membrane of a muscle fiber?
Guinness World Records (General Knowledge Focus)
PYQ
a
Sarcolemma
b
Plasma membrane
c
Sarcoplasm
d
Myofibrils
Also appeared in
121
Which of the following neurotransmitters function, both as neurotransmitter and hormones, decreasing our perception of pain?
Guinness World Records (General Knowledge Focus)
PYQ
a
Epinephrine
b
Serotonin
c
Dopamine
d
Endorphins
Also appeared in
122
Which body function is controlled through a positive feedback mechanism?
Weather, Atmosphere and Temperature
PYQ
a
Labor contractions
b
Body temperature
c
Insulin production
d
Thyroxine release
Also appeared in
123
Which of the following is common to all neurons?
Common Market for Eastern and Southern Africa (COMESA)
PYQ
a
A cell which contains a nucleus
b
A thick myelin sheath
c
Presence of node of Ranvier
d
Presence of Schwann cells
Also appeared in
124
Neurons are cells adopted for the rapid transmission of electrical impulses. To do this, they have long thin process called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Axons
b
Dendrites
c
Myelin sheath
d
Schwann cells
Also appeared in
125
__ is a junction between two neurons or between a motor neuron and a muscle cell ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Impulse
b
Synapse
c
Axon
d
Cleft
Also appeared in
126
Which of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus ?
United Nations Framework Convention on Climate Change (UNFCCC)
PYQ
a
Ovulation
b
Menstrual cycle
c
Uterine cycle
d
Embryo formation
Also appeared in
127
Which of the following diseases is sexually transmitted?
Famous Seas
PYQ
a
Tuberculosis
b
AIDS
c
Dengue fever
d
Cholera
Also appeared in
128
Which of the following hormones of the pituitary gland regulate the menstrual cycle?
Guinness World Records (General Knowledge Focus)
PYQ
a
Luteinizing hormone and estrogen
b
Follicle stimulating hormone and estrogen
c
Follicle stimulating hormone and luteinizing hormone
d
Estrogen and progesterone
Also appeared in
129
Haemophilia A and B, color blindness and testicular feminization are example of ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Y-linked recessive trait
b
X-linked dominant trait
c
Y-linked inheritance
d
X-linked recessive trait
Also appeared in
130
Which traits are most likely to affect men than women?
Most Repeated GK MCQs from Past Papers
PYQ
a
The form of appearance of a trait
b
X linked recessive
c
Autosomal dominant
d
Autosomal recessive
Also appeared in
131
Alleles both have an effect on the phenotype in heterozygotic organism?
Multi-Polar World
PYQ
a
Dominant
b
Recessive
c
Multiple
d
Co-dominant
Also appeared in
132
When both the allele of a gene are same, the organism is said to be:
Guinness World Records (General Knowledge Focus)
PYQ
a
Heterozygous
b
Genotype
c
Homozygous
d
Phenotype
Also appeared in
133
In which type of cell, Cell wall is not present?
Guinness World Records (General Knowledge Focus)
PYQ
a
Plant cells
b
Fungal cells
c
Bacterial cells
d
Liver cells
Also appeared in
134
70S size ribosomes are found in the cells of ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Algae
b
Protozoans
c
Fungi
d
Bacteria
Also appeared in
135
According to the fluid mosaic model of cell membrane, which zone is embedded inside?
Guinness World Records (General Knowledge Focus)
PYQ
a
Hydrophobic
b
Globular
c
Hydrophilic
d
Filamentous
Also appeared in
136
The membrane separating the vacuole from cytoplasm is called ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Cristae
b
Cisternae
c
Tonoplast
d
Vacuolar membrane
Also appeared in
137
Select the one which is not a function of smooth endoplasmic reticulum (SER)?
Guinness World Records (General Knowledge Focus)
PYQ
a
Metabolism of lipids
b
Transmission of impulses
c
Transport of materials
d
Processing of glycoproteins
Also appeared in
138
Which of the following organelles are involved in the synthesis of plant cell wall?
Guinness World Records (General Knowledge Focus)
PYQ
a
Endoplasmic reticulum
b
Golgi complex
c
Lysosomes
d
Peroxisomes
Also appeared in
139
Which property of water helps to maintain the integrity of cell membranes?
World Intellectual Property Organization (WIPO)
PYQ
a
Specific heat capacity
b
Hydrogen bonding
c
Cohesion and adhesion
d
Hydrophobic exclusion
Also appeared in
140
Water acts as universal solvent because of ?
Multi-Polar World
PYQ
a
Heat of vaporization
b
Hydrogen bonding
c
High polarity
d
Cohesion and adhesion
Also appeared in
141
Lipids store double amount of energy as compared to carbohydrates because of ?
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
High proportion of oxygen
b
High C-O ratio
c
Low proportion of carbon
d
High proportion of C-H
Also appeared in
142
Which of the following is an unsaturated fatty acid?
Guinness World Records (General Knowledge Focus)
PYQ
a
Oleic acid
b
Palmitic acid
c
Butyric acid
d
Acetic acid
Also appeared in
143
Monosaccharides have a general formula represented by ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Cₙ(H₂O)ₙ
b
C(H₂O)ₙ
c
C₂(H₂O)ₙ
d
C₂(HO)ₙ
Also appeared in
144
NAD is an example of?
Guinness World Records (General Knowledge Focus)
PYQ
a
Mononucleotide
b
Dinucleotide
c
Tetranucleotide
d
Trinucleotide
Also appeared in
145
Lock and key model of enzyme action proposed by Emil Fischer suggested that ?
Financial Action Task Force (FATF)
PYQ
a
Enzymes are unbiased for the substrate
b
Enzymes are restricted to one reaction type
c
Enzymes are specific for their substrate
d
An enzyme can catalyze variety of reactions
Also appeared in
146
Most enzymes have an optimum temperature of around?
Most Repeated GK MCQs from Past Papers
PYQ
a
20°C
b
30°C
c
40°C
d
50°C
Also appeared in
147
Enzymes work by lowering the ___ of the reactions that they catalyze ?
International Atomic Energy Agency (IAEA)
PYQ
a
Kinetic energy
b
Activation energy
c
Heat energy
d
Potential energy
Also appeared in
148
First stable compound during calvin cycle is ?
Guinness World Records (General Knowledge Focus)
PYQ
a
3-phosphoglycerate
b
Glyceraldehyde 3-phosphate
c
1,3 bisphosphoglycerate
d
Ribulose biphosphate
Also appeared in
149
What is the function of ribulose?
Guinness World Records (General Knowledge Focus)
PYQ
a
Intermediate in photosynthesis
b
Respiratory fuel
c
Component of DNA and RNA
d
Intermediate in cellular respiration
Also appeared in
150
Which of the following processes does not need pyruvic acid as a substrate?
Guinness World Records (General Knowledge Focus)
PYQ
a
Alcohol fermentation
b
Calvin cycle
c
Aerobic respiration
d
Lactic acid fermentation
Also appeared in
151
Which of the following is a copper containing protein in electron transport chain?
Guinness World Records (General Knowledge Focus)
PYQ
a
Plastoquinone
b
Cytochrome-C
c
Plastocyanin
d
Ferredoxin
Also appeared in
152
In electron transport chain, ATP synthesis takes place when electron moves from?
Central American Integration System (SICA)
PYQ
a
Primary electron acceptor (PEA) to plastoquinone
b
Plastoquinone (Pq) to cytochromes
c
Cytochromes to plastocyanin
d
Plastocyanin (Pc) to photosystem 1 (PS-I)
Also appeared in
153
"Law of independent assortment" states
Commonwealth of Independent States (CIS)
PYQ
a
That each pair of alleles assort independent of other pairs of alleles during gamete formation
b
That allele for each pair of contrasting trait have unequal probability to assort with the alleles of other pairs
c
That coexisting alleles for each trait segregate (separate) from each other at meiosis so that each gamete receives only one of the two alleles
d
That pertain to inheritance of single trait (monohybrid cross)
Also appeared in
154
Phenotype is ?
Guinness World Records (General Knowledge Focus)
PYQ
a
The genetic complement i.e. the genes in an individual for a particular trait
b
Partner of gene pair
c
The form of appearance of a trait
d
The position of a gene on the chromosome
Also appeared in
155
In complete dominance?
Guinness World Records (General Knowledge Focus)
PYQ
a
Different alleles of a gene are both expressed in heterozygous condition
b
One allele (R) is completely dominant over the other (r) and the presence of recessive allele is functionally hidden; the heterozygote (Rr) has the same phenotype as (RR) homozygote
c
The phenotype of the heterozygote is intermediate between phenotypes of the homozygotes
d
Gene mutation may produce many different alleles of a gene
Also appeared in
156
Which one of the following is found in both messenger RNA and DNA of a mammalian cell?
Earth’s Structure and Geological Features
PYQ
a
Ribose sugar
b
Double helical structure
c
Thymine
d
Sugar-phosphate backbone
Also appeared in
157
The cells in our body are all genetically identical apart from the:
Guinness World Records (General Knowledge Focus)
PYQ
a
Somatic cells
b
Reproductive cells
c
Muscle fibers
d
White blood cells
Also appeared in
158
Transcription is the process in which an RNA copy of the DNA sequence coding the gene is produced with help of an enzyme called ?
Guinness World Records (General Knowledge Focus)
PYQ
a
DNA polymerase
b
RNA polymerase
c
DNA transcriptase
d
RNA transcriptase
Also appeared in
159
The particular array of chromosomes that an individual possesses is called its ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Genotype
b
Phenotype
c
Karyotype
d
Allele
Also appeared in
160
During meiosis, the homologous chromosomes come together and form pairs; this process is called ?
International Federation of Red Cross and Red Crescent Societies (IFRC)
PYQ
a
Linkage
b
Synapsis
c
Pairing
d
Crossing over
Also appeared in
161
At what phase the DNA content of a cell is doubled?
Guinness World Records (General Knowledge Focus)
PYQ
a
Prophase
b
Interphase
c
Anaphase
d
Telophase
Also appeared in
162
Which statement correctly describes transcription of DNA?
Guinness World Records (General Knowledge Focus)
PYQ
a
It produces amino acids
b
It produces messenger RNA
c
It results in increased DNA synthesis
d
It is a semi conservative process
Also appeared in
163
This theory says that "mitochondria and chloroplast are in effect ancient bacteria which now live inside the large cells"
Ancient History
PYQ
a
Lamarckism
b
Darwin's theory of evolution
c
Neo-darwinism
d
Endosymbiont theory
Also appeared in
164
The organs which are similar but differ in structure are called?
Earth’s Structure and Geological Features
PYQ
a
Analogous organs
b
Homologous organs
c
Convergent evolution
d
Divergent evolution
Also appeared in
165
_____ occurs because natural selection gives some alleles a better chance of survival than others ?
Natural Resources
PYQ
a
Fitness
b
Evolution
c
Crossing over
d
Artificial selection
Also appeared in
166
The DNA that has been altered and which now contains length of nucleotides from two different organisms is called ?
Ocean Currents and Tides
PYQ
a
Plasmid
b
Combined DNA
c
Vector
d
Recombinant DNA
Also appeared in
167
It is a method for rapid production of a very large number of copies of a particular fragment of DNA ?
Financial Action Task Force (FATF)
PYQ
a
Gel electrophoresis
b
Polymerase chain reaction
c
Recombination
d
DNA extraction
Also appeared in
168
What is the effect of DNA ligase?
Guinness World Records (General Knowledge Focus)
PYQ
a
DNA is broken up at specific sites
b
DNA fragments are joined together
c
DNA replication occurs
d
DNA transcription occurs
Also appeared in
169
Which of the following is the components/ tools of recombinant DNA technology?
Central American Integration System (SICA)
PYQ
a
Gene of interest
b
Molecular scissors
c
Molecular glue and expression system
d
All of the above
Also appeared in
170
Gel electrophoresis is a technique ?
Group of Seven (G7)
PYQ
a
Employed by forensic scientists to assist in the identification of the individuals by their respective type of DNA
b
To collect all the genes found in one complete set of chromosomes
c
To grow single cells or a group of cells in a glassware on artificial medium under aseptic conditions
d
To separate different size fragments of charge bearing polymers (proteins, RNA or DNA)
Also appeared in
171
Transgenic organisms ?
Past Exam Questions on Foreign Phrases
PYQ
a
Have a foreign gene inserted into them
b
Have an important role in the large scale production of medicinal products
c
Are considered beneficial to humans
d
All of the above
Also appeared in
172
Which of the following is not necessary for PCR to occur?
Ocean Currents and Tides
PYQ
a
dATP
b
primers
c
DNA fragments
d
Ribonucleotides
Also appeared in
173
The end product of glycolysis in aerobic respiration is?
Guinness World Records (General Knowledge Focus)
PYQ
a
Ethanol and carbon dioxide
b
Lactate
c
Pyruvate
d
Acetyl CoA
Also appeared in
174
Which of the following is not related to enveloped virus?
Time Zones and Latitude–Longitude
PYQ
a
They survive for a short time
b
Their envelope is sensitive to sunlight
c
They are tolerant to antidotes
d
Envelope is derived from host
Also appeared in
175
Numerous opportunistic diseases might attack a person suffering from which of the following diseases?
Famous Seas
PYQ
a
Measles
b
Influenza
c
Hepatitis A
d
AIDS
Also appeared in
176
The complete, mature and infectious virus particle is known as?
Guinness World Records (General Knowledge Focus)
PYQ
a
Venom
b
Genome
c
Virion
d
Capsid
Also appeared in
177
Which of the following is not TRUE about Human Immunodeficiency virus (HIV)?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
It is retrovirus
b
It is surrounded by an envelope
c
It does not cause AIDS
d
It causes the deficiency of the human immune system
Also appeared in
178
Select a method which causes the oxidation of constituent of a bacterial cell?
Guinness World Records (General Knowledge Focus)
PYQ
a
Steam
b
Filtration
c
Dry heat
d
Radiation
Also appeared in
179
Which of the following is TRUE about the structure of a typical bacterium?
Earth’s Structure and Geological Features
PYQ
a
It has a cell wall
b
It has cytoplasm
c
It has genetic material
d
All of the above
Also appeared in
180
Red algae do not contribute towards ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Making coral reefs
b
Forming limestone deposits
c
Making fertilizers
d
Forming chalk deposits
Also appeared in
181
Which of the following is true about amoeba?
Famous Seas
PYQ
a
They have flagella
b
They are multicellular
c
They do not cause any disease in humans
d
They move by forming specialized cytoplasmic projections called pseudopodia
Also appeared in
182
The directional movement toward or away from the stimulus is called ?
Non-Aligned Movement (NAM)
PYQ
a
Tropism
b
Orientation
c
Taxis
d
Non orientation
Also appeared in
183
Photophosphorylation takes place in the ___ of the chloroplasts ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Stroma
b
Granum
c
Inner membrane
d
Outer membrane
Also appeared in
184
Select a not amniote from the following ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Snake
b
Frog
c
Parrot
d
Crocodile
Also appeared in
185
In roots the apoplast pathway of water is disrupted when water reaches?
Guinness World Records (General Knowledge Focus)
PYQ
a
Plasmodesmata
b
Cortex
c
Endodermis
d
Pith
Also appeared in
186
Regarding structure of human heart chordae tendineae are present in ?
Earth’s Structure and Geological Features
PYQ
a
Atria
b
Pulmonary valve
c
Ventricles
d
Aortic valve
Also appeared in
187
The only vein in human body carrying oxygenated blood is?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Femoral
b
Pulmonary
c
Renal
d
Iliac
Also appeared in
188
The cells which play very important role in developing immunity are?
Important Lines and Boundaries
PYQ
a
Monocytes
b
Neutrophils
c
Lymphocytes
d
Thrombocytes
Also appeared in
189
Which of the following blood vessels have the highest pressure of blood?
Highest and Lowest Points
PYQ
a
Aorta
b
Pulmonary arteries
c
Pulmonary veins
d
Vena cava
Also appeared in
190
Autoimmune disease act on the principle of ?
Famous Seas
PYQ
a
Antigens against self
b
Self against antigens
c
Self against self
d
Antigens self-destroyed
Also appeared in
191
In human heart, the left atrium receives ?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
The inferior Vena Cava
b
The superior Vena Cava
c
The coronary sinus
d
The four pulmonary veins
Also appeared in
192
Antibodies are manufactured in ?
Guinness World Records (General Knowledge Focus)
PYQ
a
T lymphocytes
b
Red blood cells
c
Platelets
d
B Lymphocytes
Also appeared in
About This Paper
This resolved pre-test includes authentic questions curated from recruitment syllabus parameters. By selecting the Attempt Online mode, you will trigger a simulated interface featuring keyboard shortcut mapping, sectional division, flagging panels, and persistence metrics.
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Topic Weightage
Guinness World Records (General Knowledge Focus)
53.6%
Financial Action Task Force (FATF)
6.8%
International Atomic Energy Agency (IAEA)
6.3%
Time Zones and Latitude–Longitude
3.1%
Weather, Atmosphere and Temperature
2.6%
Famous Seas
2.6%
Earth’s Structure and Geological Features
2.6%
Multi-Polar World
2.1%
Highest and Lowest Points
2.1%
United Nations Human Settlements Programme (UN-Habitat)
2.1%
Most Repeated GK MCQs from Past Papers
1.6%
Ocean Currents and Tides
1.6%
Group of Seven (G7)
1.6%
Common Market for Eastern and Southern Africa (COMESA)
1.6%
Important Lines and Boundaries
1%
World Leaders in News
1%
United Nations High Commissioner for Refugees (UNHCR)
1%
Central American Integration System (SICA)
1%
Area, Population and Official Languages
0.5%
East African Community (EAC)
0.5%
Relations Between Major Powers
0.5%
United Nations Framework Convention on Climate Change (UNFCCC)
0.5%
World Intellectual Property Organization (WIPO)
0.5%
Commonwealth of Independent States (CIS)
0.5%
International Federation of Red Cross and Red Crescent Societies (IFRC)
0.5%
Ancient History
0.5%
Natural Resources
0.5%
Past Exam Questions on Foreign Phrases
0.5%
Non-Aligned Movement (NAM)
0.5%