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## Mechanical Engineering Questions And Answers

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## Mechanical Engineering Quiz

Q-1. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

Q-2. The friction experienced by a body, when in motion, is known as

Q-3. The coefficient of restitution for elastic bodies is one.

Q-4. The value of bulk modulus of a fluid is required to determine

Q-5. The kinematic viscosity is the

Q-6.  A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as

Q-7. The efficiency and work ratio of a simple gas turbine cycle are

Q-8. The neutral axis of the cross-section a beam is that axis at which the bending stress is

Q-9. The overshot water wheels are those in which the wheel runs entirely by the __________ of water.

Q-10. In a Kaplan turbine runner, the numbers of blades are generally between

Q-11. Screws used for power transmission should have

Q-12. In a refrigerating machine, heat rejected is __________ heat absorbed.

Q-13. The wet bulb temperature during sensible heating of air

Q-14. For high speed engines, the cam follower should move with

Q-15. In a coupling rod of a locomotive, each of the four pairs is a __________ pair.

Q-16. A zinc diffusion process is called

Q-17. The accuracy of micrometers, calipers, dial indicators can be checked by a

Q-18. Which of the following material has maximum ductility?

Q-19. Shock resisting steels should have

Q-20. In water tube boilers