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
811
What physical limitation affects pigs looking at the sky?
Answer:
They cannot look up
Due to the anatomy of their neck muscles and spine, it is physically impossible for pigs to look straight up at the sky.
812
What is the name of the phenomenon where hot water freezes faster than cold water?
Answer:
Mpemba Effect
The Mpemba effect is a counter-intuitive physical phenomenon where hot water can freeze faster than cold water under certain conditions.
813
Which popular fruit is toxic to birds?
Answer:
Avocado
Avocados contain persin, a fungicidal toxin that is harmless to humans but can be fatal to birds and other pets.
814
What is the only mammal that cannot jump?
Answer:
Elephant
Adult elephants are unable to jump because they are too heavy and their leg structure is not designed for springing off the ground.
815
Which planet is known to rain diamonds?
Answer:
Jupiter and Saturn
Scientists believe that high pressure and heat on Jupiter and Saturn can turn carbon into diamonds, causing 'diamond rain'.
816
High heels were originally designed for whom?
Answer:
Men
High heels were originally designed for men, specifically Persian soldiers in the 10th century, to help secure their feet in stirrups while riding horses.
817
Which animal has an eye that is larger than its brain?
Answer:
Ostrich
An ostrich's eye is bigger than its brain. The eye is about 2 inches in diameter.
818
What unique physical feature do bananas have regarding radiation?
Answer:
They are slightly radioactive
Bananas are naturally slightly radioactive because they contain high levels of Potassium-40, a radioactive isotope of potassium.
819
What is the largest tire manufacturer in the world (by number of units)?
Answer:
LEGO
LEGO is technically the world's largest tire manufacturer, producing over 300 million tiny rubber tires for its sets annually.
820
Which invention came first?
Answer:
The Lighter
The first lighter (Dobereiner's lamp) was invented in 1823, while the friction match was invented shortly after in 1826.