IC Engines and Nuclear Power Plants problems
- 1. The sparking in a petrol engine increases pressure and temperature of the products of combustion, but the volume remains constant.
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 2. The engines in which the combustion of fuel takes place inside the engine cylinder are called internal combustion engines.
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
Options- A. equal to
- B. below
- C. above Discuss
Correct Answer: below
- 4. The turbine of the turbo-prop engine is __________ that of the turbo-jet engine.
Options- A. same as
- B. smaller than
- C. bigger than Discuss
Correct Answer: bigger than
- 5. The injection of fuel by external source is not required in case of engines working on Otto cycle.
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 6. In a petrol engine, if diesel is used, then the engine will
Options- A. not run
- B. run more efficiently
- C. run at high speed
- D. explode Discuss
Correct Answer: not run
- 7. A two stroke cycle engine occupies larger floor area than a four stroke cycle engine.
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 8. A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is
Options- A. 248 cm3
- B. 252 cm3
- C. 264 cm3
- D. 286 cm3 Discuss
Correct Answer: 264 cm3
- 9. The specific fuel consumption per B.P. hour for a petrol engine is about
Options- A. 0.2 kg
- B. 0.25 kg
- C. 0.3 kg
- D. 0.35 kg Discuss
Correct Answer: 0.25 kg
- 10. The pressure at the end of compression, in petrol engines, is approximately
Options- A. 10 bar
- B. 20 bar
- C. 25 bar
- D. 35 bar Discuss
Correct Answer: 10 bar
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