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

Related Mcqs:

1. Air injection in I.C. engines refers to injection of___________________?

   A. air only
   B. liquid fuel only
   C. liquid fuel and air
   D. supercharging
   E. does not exist

2. Solid injection in I.C. engines refers to injection of________________?

   A. liquid fuel only
   B. liquid fuel and air
   C. solid fuel
   D. solid fuel and air
   E. does not exist

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. 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

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 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

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

   A. 6 kg/cm
   B. 12kg/cmz
   C. 20 kg/cmz
   D. 27.5 kg/cmz
   E. 35 kg/cm

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