It the temperature of intake air in IC engines is lowered, then its efficiency will_______________________?

Related Mcqs:

1. If the intake air temperature of I.C. engine increases, its efficiency will_________________?

   A. increase B. decrease C. remain same D. unpredictable E. depend on other factors...

2. Diesel engines as compared to petrol engines require ______________________?

   A. bigger flywheel B. smaller flywheel C. same size flywheel D. no flywheel E. flywheel whose size may be less or more depending on several other fac-tors...

3. The efficiency of I.C. engines normally is of the order of_________________?

   A. 15-20% B. 20-25% C. 25-30% D. 30-35% E. 35-50%...

4. The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called__________________?

   A. net efficiency B. efficiency ratio C. relative efficiency D. overall efficiency E. cycle efficiency...

5. The air-fuel ratio in petrol engines-is controlled by__________________?

   A. controlling valve opening/closing B. governing C. injection D. carburettion E. scavenging and supercharging...

6. To reduce the possibility of knock in the C.I. engines, the first elements of fuel and air should have_______________?

   A. high temperature B. high density C. short delay D. reactive mixture E. all of the above...

7. 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...

8. In petrol engines, the maximum power is developed corresponding to relative fuel air ratio of________________?

   A. 0.85 B. 1 C. 1.1 to 1.3 D. 1.2 to 1.5...

9. Crankcase explosion in I.C. engines usuall occurs as ___________________?

   A. first a mild explosion followed by a bi explosion B. first a big explosion followed by a mil explosion C. both mild and big explosions occi simultaneously D. never occurs E. unpredictable...

10. In order to prevent knock in the S.I. engines, the charge away from the spark plug should have___________________?

    A. low temperature B. low density C. long ignition delay D. rich mixture E. all of the above...