Fuel consumption of diesef engines is not guaranteed at one quarter load because at such low loads________________?

Related Mcqs:

1. Diesel engines have low specific fuel consumption compared to petrol engine. This statement is____________________?

   A. not true B. true at full load C. true at part load D. true at both part and full load E. there could not be any such criterion...

2. The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?

   A. lean mixture B. chemically correct mixture C. rich mixture D. unpredictable E. none of the above...

3. 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...

4. 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...

5. 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...

6. The knocking in diesel engines for given fuel, will be__________________?

   A. enhanced by increasing compression ratio B. enhanced by decreasing compression ratio C. unaflected by compression ratio D. first enhanced by increasig compression ratio upto a limit beyond which it will be suppressed E. dependent on other factors...

7. 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...

8. For low speed operation or for idling in petrol engines, the engine requirements are for_______________?

   A. lean mixture B. theoretically correct mixture C. rich mixture D. any type of mixture E. lean/rich mixture depending upon capacity of engine...

9. In case of gas turbines, the gaseous fuel consumption guarantees are based on________________?

   A. high heat value B. low heat value C. net calorific value D. middle heat value E. calorific value...

10. Fuel consumption with increase in back pressure will________________?

    A. increase B. decrease C. remain unaffected D. depend on other factors E. none of the above...