General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 41 to 45

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

41.According to the law of conservation of energy, 1. energy can be created but not destroyed 2. energy can neither be created nor destroyed 3. energy can be transformed from one form to the other

1 only

2 only

2 and 3

3 only

42.Which of the following is not correctly matched ?

Galena : Lead sulphide

Green vitriol : Copper sulphate

Plaster of Paris : Calcium sulphate

Calomel : Mercurous chloride

43.The quality of a sound depends upon the : 1. size of the vibrating body2. material of the vibrating body3. overtones produced 4. shape of the vibrating body

1, 2 and 3

1, 2, 3 and 4

1 and 3

2, 3 and 4

44.Water is a good fire extinguisher because : 1. the secific heat of water is high 2. steam, formed as the water boils in contact with the burning object, forms an envelop and shuts off oxygen supply

1 only

2 only

both 1 and 2

neither 1 nor 2

45.What happens to the level of mercury in the barometer tube when it is taken down a coal mine ? It

falls

remains unaltered

rises

rises and then falls

More General Science QUESTIONS AND ANSWERS available in next pages