Related Mcqs:

1. If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the________________?

   A. exhaust will be smoky
   B. piston rings would stick into piston grooves
   C. exhaust temperature will be high
   D. engine starts overheating
   E. scavenging occurs

2. 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

3. The most popular firing order in case of four cylinder in-line I.C. engine is__________________?

   A. 1-2-3-4
   B. 1-3-2-4
   C. 1-4-2-3
   D. 1-2-4-3
   E. 1-3-4-

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. 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

6. Which of the following medium is compressed in a Diesel engine cylinder __________________?

   A. air aione
   B. air and fuel
   C. air and lub oil
   D. fuel alone
   E. air, fuel and lub oil

7. The operation of forcing additional air under pressure in the engine cylinder is known as________________?

   A. scavenging
   B. turbulence
   C. supercharging
   D. pre-ignition
   E. dissociation and carburretion of fuel

8. Violent sound pulsations within the cylinder of an I.C. engine are caused due to_________________?

   A. heavy turbulence
   B. improved scavenging
   C. heavy supercharging
   D. detonation
   E. preignition

9. The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?

   A. auto ignition
   B. preignition
   C. retarded ignition
   D. accelerated ignition
   E. detonation

10. Deposition of carbon in petrol engine cylinder would result in increase of__________________?

    A. clearance volume
    B. swept volume
    C. compression ratio
    D. volumetric efficiency
    E. mean effective pressure