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- Question
Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is
Options- A. 1/8
- B. 1/4
- C. 1/2
- D. 2
- Correct Answer
- 1/2
- 1. The moment of inertia of a solid sphere of mass m and radius r is
Options- A. 2mr2/3
- B. 2mr2/5
- C. mr2
- D. mr2/2 Discuss
- 2. The friction experienced by a body, when at rest, is known as
Options- A. static friction
- B. dynamic friction
- C. limiting friction
- D. coefficient of friction Discuss
- 3. In a simply supported beam carrying a uniformly distributed load w per unit length, the point of contraflexure
Options- A. lies in the centre of the beam
- B. lies at the ends of the beam
- C. depends upon the length of beam
- D. does not exist Discuss
- 4. Any number of equal divisions can be obtained on milling machine by
Options- A. direct indexing
- B. simple indexing
- C. compound indexing
- D. differential indexing Discuss
- 5. The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body
Options- A. move actually
- B. do not move actually
- C. affect the intervening medium
- D. does not affect the intervening medium Discuss
- 6. In flame hardening, oxy-acetylene flame is used.
Options- A. Yes
- B. No Discuss
- 7. The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
Options- A. (C.O.P.)P = (C.O.P.)R + 2
- B. (C.O.P.)P = (C.O.P.)R + 1
- C. (C.O.P)P = (C.O.P)R - 1
- D. (C.O.P)P = (C.O.P)R Discuss
- 8. The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to
Options- A. Stanton number
- B. Biot number
- C. Peclet number
- D. Grashoff number Discuss
- 9. Falling drops of water become spheres due to the property of
Options- A. surface tension of water
- B. compressibility of water
- C. capillarity of water
- D. viscosity of water Discuss
- 10. Light weight substances can not be effective moderators.
Options- A. True
- B. False Discuss
More questions
Correct Answer: 2mr2/5
Correct Answer: static friction
Correct Answer: does not exist
Correct Answer: simple indexing
Correct Answer: do not move actually
Correct Answer: Yes
Correct Answer: (C.O.P.)P = (C.O.P.)R + 1
Correct Answer: Stanton number
Correct Answer: surface tension of water
Correct Answer: False
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