General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 1 to 5

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

1.A convex mirror makes a good rear-view mirror for a car because :

it does not form diminished images

it has no focal point

its images can be thrown on a screen

it forms erect, reduced images

2.Who is the recepient of Nobal Prize for the development of Wireless Telegraphy ?

J. J. Thomson

Kamerling Onnes

Samuel Morse

Marconi

3.Which of the following statements are correct ? 1. Teflon and dacron and polymers2. Neoprene is synthetic rubber3. Polythene is polyethylene polymer4. Natural rubber is chloroprene

1, 2 and 3

1, 2 and 4

2, 3 and 4

1, 3 and 4

4.Paper becomes brittle and yellow with age. Why ? 1. The acid content in paper causes brittleness to develop 2. In the presence of visible light, photosensitised oxidation occurs 3. The ultra-violet component of sunlight causes photolysis of cellulose by direct cleavage of the cellulose polymer

1 and 2

2 and 3

1 and 3

1, 2 and 3

5.The energy of the winds and the waves is :

potential

kinetic

electrical

potential and kineitic

More General Science QUESTIONS AND ANSWERS available in next pages