Discussion
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- Question
The power actually developed by the engine cylinder of an I.C. engine is known as
Options- A. theoretical power
- B. actual power
- C. indicated power
- D. none of these
- Correct Answer
- indicated power
- 1. The air-fuel ratio of the petrol engine is controlled by
Options- A. carburettor
- B. injector
- C. governor
- D. none of these Discuss
- 2. A diesel engine has inlet valve, fuel injection valve and exhaust valve.
Options- A. Yes
- B. No Discuss
- 3. The relative efficiency of an I.C. engine is the ratio of the indicated thermal efficiency to the air standard efficiency.
Options- A. Correct
- B. Incorrect Discuss
- 4. The firing order in an I.C. engine depends upon
Options- A. arrangement of the cylinders
- B. design of crankshaft
- C. number of cylinders
- D. all of these Discuss
- 5. The ratio of the indicated thermal efficiency to the air standard efficiency is known as
Options- A. mechanical efficiency
- B. overall efficiency
- C. volumetric efficiency
- D. relative efficiency Discuss
- 6. Gas turbine as compared to internal combustion engine
Options- A. can be driven at a very high speed
- B. produces uniform torque
- C. has more efficiency
- D. all of these Discuss
- 7. In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at
Options- A. diffuser inlet radius
- B. diffuser outlet radius
- C. impeller inlet radius
- D. impeller outlet radius Discuss
- 8. In a gas turbine, air is obtained from the atmosphere and compressed in an air compressor.
Options- A. True
- B. False Discuss
- 9. If p1 is the pressure of air entering the L.P, cylinder and p3 is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by
Options- A. D1/D2 = (p1p3)1/2
- B. D1/D2 = (p1/p3)1/4
- C. D1/D2 = (p1p3)1/4
- D. D1/D2 = (p3/p1)1/4 Discuss
- 10. The air is delivered __________ in one revolution in case of a three-lobbed rotor.
Options- A. two times
- B. three times
- C. four times
- D. six times Discuss
IC Engines and Nuclear Power Plants problems
Search Results
Correct Answer: carburettor
Correct Answer: Yes
Correct Answer: Correct
Correct Answer: all of these
Correct Answer: relative efficiency
Correct Answer: all of these
Correct Answer: diffuser outlet radius
Correct Answer: True
Correct Answer: D1/D2 = (p3/p1)1/4
Correct Answer: six times
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