Discussion
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- Question
Which of the following statement is correct for a compound steam engine?
Options- A. The cost of the engine, for the same power and economy, is more than that of a simple steam engine.
- B. The forces in the working parts are increased as the forces are distributed over more parts.
- C. The ratio of expansion is reduced, thus reducing the length of stroke.
- D. The temperature range per cylinder is increased, with corresponding increase in condensation.
- Correct Answer
- The ratio of expansion is reduced, thus reducing the length of stroke.
- 1. The self ignition temperature of Diesel as compared to petrol is
Options- A. higher
- B. lower
- C. same
- D. depends on fuel quality Discuss
- 2. The maximum velocity of a particle moving with simple harmonic motion is
Options- A. ?
- B. ?r
- C. ?2r
- D. ?/r Discuss
- 3. The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
Options- A. pressure drop across the valves
- B. superheating in compressor
- C. clearance volume and leakages
- D. all of these Discuss
- 4. Gear lapping is an operation
Options- A. after heat treatment
- B. prior to heat treatment
- C. for gear reconditioning
- D. none of these Discuss
- 5. 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
- 6. A petrol engine, during suction stroke draws
Options- A. air only
- B. petrol only
- C. a mixture of petrol and air Discuss
- 7. 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
- 8. The primary fuel used in nuclear power plants is
Options- A. U235
- B. U238
- C. Pu239
- D. Pu233 Discuss
- 9. In drilling mild steel and brass, the point angle of a drill is 118°.
Options- A. True
- B. False Discuss
- 10. The water tubes in a Babcock and Wilcox boiler are
Options- A. vertical
- B. horizontal
- C. inclined Discuss
More questions
Correct Answer: lower
Correct Answer: ?r
Correct Answer: all of these
Correct Answer: after heat treatment
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
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