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- Question
The centre of gravity of the volume of the liquid displaced is called
Options- A. centre of pressure
- B. centre of buoyancy
- C. metacentre
- D. none of these
- Correct Answer
- centre of buoyancy
- 1. If a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is
Options- A. 175
- B. 65
- C. 14
- D. 82 Discuss
- 2. A petrol engine, during suction stroke draws
Options- A. air only
- B. petrol only
- C. a mixture of petrol and air Discuss
- 3. Which of the following is an example of laminar flow?
Options- A. Under ground flow
- B. Flow past tiny bodies
- C. Flow of oil in measuring instruments
- D. all of these Discuss
- 4. The primary fuel used in nuclear power plants is
Options- A. U235
- B. U238
- C. Pu239
- D. Pu233 Discuss
- 5. In drilling mild steel and brass, the point angle of a drill is 118°.
Options- A. True
- B. False Discuss
- 6. The water tubes in a Babcock and Wilcox boiler are
Options- A. vertical
- B. horizontal
- C. inclined Discuss
- 7. In TIG arc welding, the welding zone is shielded by an atmosphere of
Options- A. helium gas
- B. argon gas
- C. either (a) or (b)
- D. none of these Discuss
- 8. For a self locking machine, the efficiency must be
Options- A. equal to 50%
- B. less than 50%
- C. greater than 50%
- D. 100% Discuss
- 9. The Parsons' reaction turbine has
Options- A. only moving blades
- B. only fixed blades
- C. identical fixed and moving blades
- D. fixed and moving blades of different shape Discuss
- 10. Galvanising is a
Options- A. zinc diffusion process
- B. process of coating zinc by hot dipping
- C. process used for making thin phosphate coating on steel
- D. none of the above Discuss
More questions
Correct Answer: 65
Correct Answer: a mixture of petrol and air
Correct Answer: all of these
Correct Answer: U235
Correct Answer: True
Correct Answer: inclined
Correct Answer: either (a) or (b)
Correct Answer: less than 50%
Correct Answer: identical fixed and moving blades
Correct Answer: process of coating zinc by hot dipping
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