Power impulses from an I.C. engine are somoothed out by__________________?

Related Mcqs:

1. 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

2. For same power and same speed, the flywheel of a four stroke engine as compared to two-stroke I.C. engine will be________________?

   A. smaller
   B. bigger
   C. same size
   D. dependent on other engine parameters
   E. unpredictable

3. A two stroke engine is usually identified by__________________?

   A. size of flywheel
   B. weight of engine
   C. type of lubrication system
   D. absence of valves
   E. location of fuel tank

4. The thermal efficiency of a petrol engine of two stroke with crank case scavenging as compared to four stroke petrol engine with same comperssion ratio will be_____________________?

   A. higher
   B. lower
   C. same
   D. depends on size of engine
   E. unpredictable.

5. The thermal efficiency of a two cycle engine as compared to four cycle engine is_________________?

   A. more
   B. less
   C. same
   D. more upto some load and then less
   E. it may be less or more depending on several other factors

6. For the same size and weight, a two stroke engine as compared to four stroke engine will generate power_________________?

   A. about twice
   B. about 0.5 times
   C. nearly equal
   D. about 1.7 times
   E. about 5 times

7. Scavenging air is supplied to a two-stroke engine at a density greater than that of atmosphere. This means the engine is__________________?

   A. Supercharged
   B. Not supercharged
   C. Charged
   D. Supercharged provided its speed is low

8. With increase in engine speed, the ignition of spark in petrol engine has to be __________________?

   A. Unaltered
   B. Increased
   C. Decreased
   D. Advanced

9. The air-fuel ratio of the petrol engine is controlled by__________________?

   A. fuel pump
   B. governor
   C. injector
   D. carburettor
   E. scavenging

10. 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