This set of Power Plant Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Miscellaneous”.
1. Greenhouse effect is not caused by?
a) CFC’s
b) Sulphur dioxide
c) Carbon dioxide
d) None of the mentioned
View Answer
Explanation: CFC’s aren’t responsible for the greenhouse effect.
2. In a four stroke cycle petrol engine, the inlet valve ___________
a) opens at top dead centre and closes at bottom dead centre
b) opens at 20° before top dead centre and closes at 40° after bottom dead centre
c) opens at 20° after top dead centre and closes at 20° before bottom dead centre id may open or close anywhere
d) none of the mentioned
View Answer
Explanation: In a four stroke cycle petrol engine, the inlet valve opens at 20° before top dead centre and closes at 40° after bottom dead centre.
3. Which of the following does not relate to a compression ignition engine?
a) Fuel injector
b) Fuel pump
c) Governor
d) Carburettor
View Answer
Explanation: Carburettor isn’t used in a compression ignition engine, instead it is used in spark ignition engine.
4. The theoretically correct mixture of air and petrol is?
a) 20:1
b) 15:1
c) 40:1
d) 50:1
View Answer
Explanation: The theoretically correct mixture of air & petrol is 20:1.
5. The injection pressure in a diesel engine is about ___________
a) 10 bar
b) 100 bar
c) 150 bar
d) 300 bar
View Answer
Explanation: The injection pressure in a diesel engine is about 100 bar.
6. The pressure at the end of compression, in diesel engines, is approximately ___________
a) 10 bar
b) 15 bar
c) 20 bar
d) 35 bar
View Answer
Explanation: The pressure at the end of compression, in diesel engines, is approximately 35 bar.
7. The function of a distributor in a coil ignition system of I.C. engines is ___________
a) to distribute spark
b) to distribute power
c) to time the spark
d) to distribute current
View Answer
Explanation: Distributor in a coil ignition system of an IC Engine times the spark produced.
8. Brayton cycle corresponds to ___________
a) IC Engines
b) Gas Turbines
c) IC Engines & Gas Turbines
d) None of the above mentioned
View Answer
Explanation: Gas Turbines are based on Brayton cycle.
9. Intercooling is done in ___________
a) CI Engines
b) SI Engines
c) Gas Turbines
d) None of the mentioned
View Answer
Explanation: Intercooling is done in Gas Turbines.
10. A Gas Turbine is also known as?
a) Compression Turbine
b) Compensation Turbine
c) Combustion Turbine
d) None of the mentioned
View Answer
Explanation: Combustion Turbine is yet another name of Gas Turbines.
Sanfoundry Global Education & Learning Series – Power Plant Engineering.
To practice all areas of Power Plant Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.
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