IC Engines and Nuclear Power Plants problems
- 1. If petrol is used in a diesel engine, then
Options- A. low power will be produced
- B. efficiency will be low
- C. higher knocking will occur
- D. black smoke will be produced Discuss
Correct Answer: higher knocking will occur
- 2. In a four stroke cycle petrol engine, the expansion
Options- A. starts at top dead centre and ends at bottom dead centre
- B. starts at 30° before top dead centre and ends at 50° before bottom dead centre
- C. starts at 30° after top dead centre and ends at 50° after bottom dead centre
- D. may start and end anywhere Discuss
Correct Answer: starts at 30° before top dead centre and ends at 50° before bottom dead centre
- 3. During idling, a petrol engine requires __________ mixture.
Options- A. lean
- B. rich
- C. chemically correct Discuss
Correct Answer: rich
- 4. The brake power is always greater than indicated power.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Disagree
- 5. The sensing element in the control system of nuclear reactors measure the __________ of the neutron flux in the reactor.
Options- A. temperature
- B. volume
- C. density
- D. none of these Discuss
Correct Answer: density
- 6. The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of
Options- A. Morse test
- B. prony brake test
- C. motoring test
- D. heat balance test Discuss
Correct Answer: Morse test
- 7. The first nuclear power plant in India was located at
Options- A. Kota
- B. Tarapur
- C. Bareilly
- D. none of these Discuss
Correct Answer: Tarapur
- 8. Which of the following statement is correct regarding normal cetaine?
Options- A. It is a standard fuel used for knock rating of diesel engines.
- B. Its chemical name is normal-hexadecane.
- C. It has long carbon chain structure.
- D. all ofthe above Discuss
Correct Answer: all ofthe above
- 9. The probability of knocking in diesel engines is increased by
Options- A. high self ignition temperature
- B. low volatility
- C. higher viscosity
- D. all of these Discuss
Correct Answer: all of these
- 10. Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has
Options- A. high neutron absorption cross-section
- B. low moderating efficiency
- C. high neutron scatter cross-section
- D. low neutron absorption cross-section Discuss
Correct Answer: low moderating efficiency
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