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Mechanical SSC J.E Quiz-47

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Question 1

An elevator is required to lift a body of mass 65 kg.The acceleration (in m/s2) of the elevator which could cause a force of 800 N on the floor is ___

Question 2

A straight bar having a constant cross sectional area A, length L and weight W, is hanging vertically. If E is the young’s modulus of the material of the bar, total increase in length of the bar due to its own weight only will be

Question 3

Which of the following do not travel far as their energy is dissipated easily?

Question 4

Which one of the following takes place during a nuclear fusion?

Question 5

Which instrument is used for measuring humidity of atmosphere?

Question 6

Heat is transmitted from higher temperature to lower temperature in fluids through the actual motion of the molecules in

Question 7

The phenomenon of change in direction of light when it passes from one medium to another is called
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