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General Science - Questions and Answers

Practice questions on General Science.

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601. Which of the following continents has the largest area ?
A. Europe
B. Africa
C. North America
D. South America
Explanation:
602. Which radioactive pollutant has recently drawn the attention of the public, due to its occurrence in the building material ?
A. Radium
B. Radon
C. Thorium
D. Plutonium
Explanation:
603. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : In High Fedelity radio broadcasts frequency modulation (FM) is preferred over amplitude modulation (AM) for transmission purposes.Reason (R) : Atmospheric disturbances affect the amplitude of transmitted broadcast signals.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
604. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Velocity of sound in air is independent of the pressure of air.Reason (R) : When pressure changes, density of air changes in such a way that the ratio of pressure and density remains unchanged.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
605. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Ammonium sulphate and lime should not be added together in a fertiliser mixture.Reason (R) : Reactive basic materials like lime react with ammonium sulphate liberating ammonia which is lost from the fertilizer mixture.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
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