Mechanical Engineering : Ic Engines QUESTIONS AND ANSWERS :: part4 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Air fuel ratio for idling speed of a petrol engine is approximately |
| 1 : 1 |
| 5 : 1 |
| 10:1 |
| 15 : 1 |
| 20 : 1. |
2.In the opposed piston diesel engine, the combustion chamber is located |
| above the piston (/;) below the piston |
| between the pistons |
| any when |
| there is no such criterion. |
| opt 5 |
3.In the crankcase method of scavenging, the air pressure is produced by |
| supercharger |
| centrifugal pump |
| natural aspirator |
| movement of engine piston |
| reciprocating pump. |
4.In loop scavenging, the top of the piston is |
| flat |
| contoured |
| slanted |
| depressed |
| convex shaped. |
5.Scavenging is usually done to increase |
| thermal efficiency |
| speed |
| power output |
| fuel consumption |
| all of the above. |
More Ic Engines QUESTIONS AND ANSWERS available in next pages
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