General Knowledge MCQs
Topic Notes: General Knowledge
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
11
The shortest air route from London to San Francisco passes over:
Answer:
Greenland and the Arctic
Due to the Great Circle effect, the shortest path between northern cities curves upward over the polar regions, not a straight line across the Atlantic.
12
If you are standing at the North Pole, which direction is South?
Answer:
Every direction
At the exact North Pole, every direction you step is South.
13
Standard time zones were largely introduced in the 19th century to aid:
Answer:
Railroad schedules
Before standard time zones, every town kept its own local solar time, which made coordinating train schedules impossible. Railroads championed the Standard Time system.
14
Which latitude is often associated with the border between the US and Canada?
Answer:
49th Parallel
The 49th Parallel North forms the border between the Western US and Canada.
15
GPS systems primarily rely on accurate measurement of:
Answer:
Time signals from satellites
GPS works by calculating the time difference between signals sent from multiple satellites to determine precise position (trilateration).
16
Which line is approximately 23.5° South of the Equator?
Answer:
Tropic of Capricorn
The Tropic of Capricorn marks the southern boundary of the tropics at 23.5° S.
17
The International Date Line passes through which ocean?
Answer:
Pacific Ocean
The IDL runs through the middle of the Pacific Ocean, roughly following the 180° longitude.
18
What defines 'Solar Noon'?
Answer:
When the sun is at its highest point in the sky
Solar noon is the moment when the sun crosses the local meridian and reaches its highest point in the sky for that day.
19
The longest parallel of latitude is:
Answer:
The Equator
Because the Earth is a sphere (bulging at the center), the Equator is the widest circumference. Parallels get shorter as they approach the poles.
20
Which country has a half-hour time zone offset (UTC+3:30 and UTC+4:30)?
Answer:
Iran
Iran uses Iran Standard Time (IRST), which is UTC+3:30 (and +4:30 during DST).