IC Engines and Nuclear Power Plants problems
- 1. By higher octane number of spark ignition fuel, it is meant that the fuel has
Options- A. higher heating value
- B. higher flash point
- C. lower volatility
- D. longer ignition delay Discuss
Correct Answer: longer ignition delay
- 2. The overall efficiency is defined as the ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time.
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. Which of the following fuel has little tendency towards detonation?
Options- A. Benzene
- B. Iso-octane
- C. Normal heptane
- D. Alcohol Discuss
Correct Answer: Iso-octane
- 4. Iso-octane (C8H18) has octane number of
Options- A. 0
- B. 50
- C. 100
- D. 120 Discuss
Correct Answer: 100
- 5. If the fuel is rich in fissionable material, the reactor can be made more compact than if the percentage of fissionable atoms is small.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 6. Stoichiometric ratio is
Options- A. chemically correct air-fuel ratio by weight
- B. chemically correct air-fuel ratio by volume
- C. actual air-fuel ratio for maximum efficiency
- D. none of the above Discuss
Correct Answer: chemically correct air-fuel ratio by volume
- 7. A diesel engine, during suction stroke, draws
Options- A. air only
- B. diesel only
- C. a mixture of diesel and air Discuss
Correct Answer: air only
- 8. The compression ignition engines are governed by
Options- A. hit and miss governing
- B. qualitative governing
- C. quantitative governing
- D. combination of (b) and (c) Discuss
Correct Answer: qualitative governing
- 9. The thermal efficiency of a petrol engine is __________ as compared to diesel engine.
Options- A. same
- B. less
- C. more Discuss
Correct Answer: less
- 10. The spark ignition engines are governed by
Options- A. hit and miss governing
- B. qualitative governing
- C. quantitative governing
- D. combination of (b) and (c) Discuss
Correct Answer: quantitative governing
More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.