IC Engine Mock Test 9

1. The increased flame speeds make the petrol engine more sensitive to fuel-air ratio and engine cannot run on strong mixtures without knock.

2. The loss in piston work due to the early opening of the exhaust valve is less than offset by better charging and scavenging of the engine.

3. _____________ is the physical quantity, property, or condition that is to be measured.

4. _____________ is a sensing element consisting of a thin flexible circular plate which can be actuated by a pressure differential applied across the plate.

5. The ratio of the indicated thermal efficiency to the air standard efficiency is known as ______________

6. Signal varying cyclically with time or repeating itself after a constant interval is ____________

7. The random changes in output under constant measurand and normal operating conditions is called the ______________

8. Rich mixtures are used to control detonation, which further increases the specific fuel consumption of the engine.

9. ____________ is used to check the state of charge of a battery.

10. The ignition timings and thermal load on the engine affect the knock limit of CI engine.