General Knowledge Questions And Answers :: General Science: part24



General Knowledge : General Science QUESTIONS AND ANSWERS :: part24 : 16 to 20

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

16.Rocket works on the principle of :

conservation of mass
conservation of energy
conservation of momentum
none of these

17.A body is stable if it has a :

broad base and a high centre of gravity
broad base and a low cnetre of gravity
narrow base and a high centre of gravity
narrow base and a low centre of gravity

18.Which of the following statements are true regarding heat ? 1. Heat is a form of energy 2. Heat can be reflected by a mirror 3. Heat is an electromagnetic radiation4. Heat cannot pass through vacuum

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

19.A permanent magnet repels :

ferromagnetic substances only
diamagnetic substances only
paramagnetic substances only
body paramagnetic and diamagnetic substances

20.In T.V. transmission :

sound and video signals are transmitted simultaneously
sound is transmitted first and then the video signal follows
video signal is transmitted first, followed by sound signal
sound and video signals are transmitted from different places at the same time

More General Science QUESTIONS AND ANSWERS available in next pages

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