The pressure at the end of compression in the case of diesel engine is of the order of___________________?

Related Mcqs:

1. The pressure and temperature at the end of compression stroke in a petrol engine are of the order of___________________?

   A. 4 – 6 kg/cm2 and 200 – 250°C
   B. 6 – 12 kg/cm2 and 250 – 350°C
   C. 12 – 20 kg/cm2 and 350 – 450°C
   D. 20 – 30 kg/cm2 and 450 – 500°C
   E. 30 – 40 kg/cm2 and 500 – 700°C

2. Diesel engine can work on very lean air fuel ratio of the order of 30 : 1. A petrol engine can also work on such a lean ratio provided__________________?

   A. it is properly designed
   B. best quality fuel is used
   C. can not work as it is impossible
   D. flywheel size is proper
   E. engine cooling is stopped

3. The ratio of useful power; engine friction exhaust gas losses; cooling water, air and oil losses for a diesel engine is of the order of____________________?

   A. 5:25:30:50
   B. 25:35:5:35
   C. 25:5:10:60
   D. 40:30:15:15
   E. 25:5:35:35

4. In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of____________________?

   A. 250°C
   B. 500°C
   C. 1000°C
   D. 150CPC
   E. 2000°C

5. High carbon content in diesel oil used for diesel engine leads to_________________?

   A. production of highly corrosive gases corroding the cylinder walls and exhaust system
   B. excessive engine wear
   C. damaging of both the storage tank and the engine
   D. deposition on engine parts
   E. none of the above.

6. In diesel engine, the compression ratio in comparison to expansion ratio is_______________?

   A. same
   B. less
   C. more
   D. variable
   E. more/less depending on engine capacity.

7. In a diesel engine, injection pressure developed by injector is of the order of______________?

   A. 10 kg/cm2
   B. 100 kg/cm2
   C. 500 kg/cm2
   D. 1400 kg/cm2

8. A diesel engine as compared to petrol engine (both running ar rated load) is ____________________?

   A. more efficient
   B. less efficient
   C. equally efficient
   D. unperdictable
   E. other factors will decide it

9. The output of a diesel engine can be increased without increasing the engine revolution or size in following way_________________?

   A. feeding more fuel
   B. increasing flywheel size
   C. heating incoming air
   D. scavenging
   E. supercharging

10. The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is_______________?

    A. same
    B. more
    C. less
    D. less or more depending on operating conditions
    E. unpredictable