General Knowledge Questions And Answers :: General Science: part3



General Knowledge : General Science QUESTIONS AND ANSWERS :: part3 : 71 to 75

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

71.Which of the following statements are true ? 1. Teflon and dacron are polymers. 2. Neoprene is synthetic rubber. 3. Polythene is polyethylene polymer. 4. Natural rubber is chloroprene.

1, 2 and 3
2, 3 and 4
1, 3 and 4
1, 2 and 4

72.Which of the following statements about a refrigerator is/are correct ? 1. It converts electrical energy into heat energy. 2. It converts electrical energy into mechanical energy. 3. It transfers heat from a high temperature to a low temperature. 4. It transfers heat from a low temperature to a high temperature.

1 and 3
2 and 3
1 and 4
4 only

73.AC cannot be used in

Amplifier
Transformer
Voltmeter
Galvanometer

74.Rectifiers are used to convert

low voltage to high voltage
high voltage to low voltage
D.C to A.C.
A.C. to D.C.

75.A substance which changes readily into vapour without heating is called

efflorescent
synthetic
volatile
effervescent

More General Science QUESTIONS AND ANSWERS available in next pages

    Health is the greatest gift, contentment is the greatest wealth -Buddha
Failure defeats losers, failure inspires winners.-Robert T. Kiyosaki