General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 31 to 35

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

31.When light passes from air into glass it experiences change in :

frequency and wavelength

frequency and speed

wavelength and speed

frequency, wavelength and speed

32.Water kept in an old ""surahi"" is less cold than the water in a new one. Why ?

The pores in the surahi help in evaporation of water

The pores in the old surahi become clogged and thus, the total surface area for evaporation is reduced

Old surahis become saturated with water and hence evaporation is not rapid

Because of none of the above

33.Which of the following substance is a bad conductor of electricity but a good conductor of heat ?

Abestos

Celluloid

Purspecks

Mica

34.In a barometer, mercury is preferred over water because :

mercury is a good conductor of heat

mercury shines and therefore its level can be read easily

mercury has high density and low vapour pressure

mercury is available in pure form

35.The element present in the largest amount in rocks and minerals is :

carbon

silicon

hydrogen

aluminium

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

If you are not willing to risk the usual you will have to settle for the ordinary- Jim Rohn

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