IC Engine Practice Test 10

1. When the engine is suddenly accelerated there will be a small time delay before the extra energy discharged into the turbine housing volute can speed up the turbine wheel.

2. High speed two stroke engines are ____________ efficient owing to the reduced volumetric efficiency.

3. Turbocharged engines produce lower cylinder volumetric efficiencies compared with the normally aspirated induction systems.

4. If overhead clearance is less, then which of the following type of engine should be selected?

5. ____________ of fuel energy is wasted as heat energy to outgoing exhaust gases.

6. The pistons are usually given a coating such as tin plating in order to __________

7. For the same output, two stroke engines occupy ___________ space.

8. The exhaust valve in a four stroke cycle petrol engine __________

9. The injector nozzle of a compression ignition engine is required to inject fuel at sufficiently high pressure in order to __________

10. In __________ scavenging, the fresh air first sweeps across the piston top, moves up and then down finally out through the exhaust.