Discussion
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- Question
In a four stroke cycle petrol engine, the charge is ignited at
Options- A. 30° before top dead centre
- B. 30° after top dead centre
- C. 30° before bottom dead centre
- D. 30° after bottom dead centre
- Correct Answer
- 30° before top dead centre
- 1. The energy released during the fission of one atom of Uranium - 235 in million electron volts is about
Options- A. 100
- B. 200
- C. 300
- D. 400 Discuss
- 2. The pressure at the end of compression, in diesel engines, is approximately
Options- A. 10 bar
- B. 20 bar
- C. 25 bar
- D. 35 bar Discuss
- 3. The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called
Options- A. mechanical efficiency
- B. overall efficiency
- C. volumetric efficiency
- D. relative efficiency Discuss
- 4. In hit and miss governing, the fuel supply is cut-off completely during one or more number of cycles.
Options- A. Yes
- B. No Discuss
- 5. In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will __________ the knocking tendency.
Options- A. not effect
- B. decrease
- C. increase Discuss
- 6. The predominent isotope of the naturally occuring element is
Options- A. U235
- B. U238
- C. Pu233
- D. Pu239 Discuss
- 7. In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the
Options- A. beginning of suction stroke
- B. end of suction stroke
- C. beginning of exhaust stroke
- D. end of exhaust stroke Discuss
- 8. High speed compression engines operate on
Options- A. Otto cycle
- B. Diesel cycle
- C. Dual-combustion cycle
- D. all of these Discuss
- 9. Each fission of U235 produces on the average __________ fast neutrons as a product of reaction.
Options- A. 2.46
- B. 24.6
- C. 246
- D. 2460 Discuss
- 10. A moderator generally used in nuclear power plants is
Options- A. graphite
- B. heavy water
- C. concrete
- D. graphite and concrete Discuss
IC Engines and Nuclear Power Plants problems
Search Results
Correct Answer: 200
Correct Answer: 35 bar
Correct Answer: volumetric efficiency
Correct Answer: Yes
Correct Answer: increase
Correct Answer: U238
Correct Answer: beginning of suction stroke
Correct Answer: Dual-combustion cycle
Correct Answer: 2.46
Correct Answer: graphite and concrete
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