Top 30 Mixed GK Questions and Answers
What color does blue litmus paper turn into?
(A) White
(B) Red
(C) Black
(D) Violet
Correct Answer : B
The alkali converts red litmus to-
(A) Black
(B) White
(C) Blue
(D) Violet
Correct Answer : C
What is the hearing capacity of a human being?
(A) 20 Hz to 2000 Hz
(B) 20 Hz to 20000 Hz
(C) More than 20000 Hz
(D) 200 Hz to 20000 Hz
Correct Answer : B
What is a mixture of two or more metals called?
(A) Amalgam
(B) Alkaline metals
(C) Fine metal
(D) Alloy
Correct Answer : D
Which gas is released when water is mixed with lime?
(A) Oxygen
(B) Carbon dioxide
(C) Hydrogen
(D) Helium
Correct Answer : B
On which law is the principle of working of power transformer based?
(A) Faraday's law
(B) Hooke's law
(C) Newton's law
(D) Einstein's theory
Correct Answer : A
What is the value of acceleration due to gravity at the center of the earth?
(A) 0
(B) -1
(C) 1
(D) 9.8
Correct Answer : A
What is the change in the weight of iron when it rusts?
(A) gets reduced.
(B) rises up
(C) remains the same
(D) None of these
Correct Answer : B
When water is heated from 0°C to 4°C, its volume:
(A) first increases then decreases
(B) remains the same
(C) increases
(D) decreases
Correct Answer : D
The motion of a freely falling body is an example of ________________________ motion.
(A) constant velocity
(B) constant speed
(C) uniformly accelerated
(D) non-uniformly accelerated
Correct Answer : C