Discussion
Home ‣ Mechanical Engineering ‣ IC Engines and Nuclear Power Plants Comments
- Question
The nuclear radiators produced in a reactor which must be sheilded are
Options- A. electrons
- B. ?, ? and ? rays
- C. neutron and gamma rays
- D. none of these
- Correct Answer
- neutron and gamma rays
- 1. The voltage required to produce a spark across the gap, between the sparking points is
Options- A. 2000 to 4000 volts
- B. 4000 to 6000 volts
- C. 6000 to 10 000 volts
- D. 10 000 to 12 000 volts Discuss
- 2. A diesel engine has compression ratio from
Options- A. 6 to 10
- B. 10 to 15
- C. 15 to 25
- D. 25 to 40 Discuss
- 3. The scavenging efficiency of a four stroke cycle diesel engine is
Options- A. below 50%
- B. between 50 and 85%
- C. between 85 and 95%
- D. between 95 and 100% Discuss
- 4. The two stroke cycle engines have lighter flywheel.
Options- A. Agree
- B. Disagree Discuss
- 5. The higher combustion chamber wall temperature in compression ignition engines will __________ knocking tendency.
Options- A. increase
- B. reduce
- C. not effect Discuss
- 6. In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then __________ is employed.
Options- A. fuel pump
- B. injector
- C. carburettor
- D. none of these Discuss
- 7. Theoretically, a four stroke cycle engine should develop __________ power as that of a two stroke cycle engine.
Options- A. half
- B. same
- C. double
- D. four times Discuss
- 8. The ratio of the heat equivalent to one kW hour to the heat in fuel per B.P. hour is termed as brake thermal efficiency.
Options- A. Yes
- B. No Discuss
- 9. A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
Options- A. stable under nuclear radiation
- B. corrossion resistant
- C. good thermal conductor
- D. all of these Discuss
- 10. The knocking in spark ignition engines can be reduced by
Options- A. retarding the spark
- B. increasing the engine speed
- C. both (a) and (b)
- D. none of these Discuss
IC Engines and Nuclear Power Plants problems
Search Results
Correct Answer: 6000 to 10 000 volts
Correct Answer: 15 to 25
Correct Answer: between 95 and 100%
Correct Answer: Agree
Correct Answer: reduce
Correct Answer: carburettor
Correct Answer: half
Correct Answer: Yes
Correct Answer: all of these
Correct Answer: both (a) and (b)
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