In the opposed piston diesel engine, the combustion chamber is located________________?

Related Mcqs:

1. The top piston ring nearer to the piston crown is known as_____________________?

   A. compression ring
   B. oil ring
   C. scrapper ring
   D. groove ring
   E. leading ring

2. In open combustion chamber in diesel engines____________________?

   A. the shape and layout of the piston crown, the inlet port, and the valve produce the turbulent effect on fuel mixture
   B. fuel is injected into an auxiliary chamber that is separated from the cylinder by an orifice or throat
   C. only a part of air charge is contained in an auxiliary chamber in which the fuel starts to burn with insufficient air which due to explosion tendency mixes thoroughly into main cylinder charge
   D. fuel is injected at atmospheric pres¬sure
   E. there are no valves.

3. 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

4. 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.

5. 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

6. 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

7. 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

8. 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

9. 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

10. In precombustion chamber in diesel engine________________?

    A. The shape and layout of the pistion crown, the inlet port, and the valve produce the turbulent effect of fuel mixture
    B. Fuel is injected into an auxiliary chamber that is separated from the cylinder by an orifice or throat
    C. Only a part of air charge is contained in an auxiliary chamber in which the fuel starts to burn with insufficient air which due to explosion tendency mixes thoroughly into main cylinder charge
    D. There are no valves