General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part14 : 46 to 50

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

46.Given below are two statements, labeled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ? 1. Assertion (A) : In a circuit, an ammeter is always connected in series and a voltmeter always in parallel. 2. Reason (R) : The resistance of ammeter is high and that of voltmeter is low.

Both A and R are true but R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

47.Ozone attacks

glass

mercury and silver

copper

None of these

48.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) : The escape velocity from the surface of the Moon is less than that from the Earths surface.Reason (R) : The Moon has no atmosphere.

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

49.Which of the following represents the correct sequence of the four types of coals in order of their declining quality (decreasing carbon content) ? 1. Anthracite 2. Peat 3. Lignite 4. Bituminous

4, 1, 3, 2

1, 4, 3, 2

1, 3, 4, 2

4, 1, 2, 3

50.Soil is depleted of nitrogen because of repeated growing of a cereal like wheat. In order to enrich the soil again, one should grow

soyabean or alfalfa

alfalfa or maize

soyabean or eucalyptus

alfalfa or eucalyptus

More General Science QUESTIONS AND ANSWERS available in next pages