Mechanical Engineering : Ic Engines QUESTIONS AND ANSWERS :: part2 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.The specific fuel consumption per BH hour for a petrol engine is approximately |
| 0.15 kg |
| 0.2 kg |
| 0.25 kg |
| 0.3kg |
| 0.35 kg. |
7.In diesel engine the diesel fuel injected intc cylinder would burn instantly at about compressed air temperature of |
| 250�C |
| 500�C |
| 1000�C |
| 150CPC |
| 2000�C. |
8.It the temperature of intake air in IC engines is lowered, then its efficiency will |
| increase |
| decrease |
| remain same |
| increase upto certain limit and then decrease |
| decrease upto certain limit and then in-crease. |
9.Pick up the false statement |
| Thermal efficiency of diesel engine i about 34% |
| Theoretically correct mixture of air am petrol is approximately 15 : 1 |
| High speed compression engines operate on dual combustion cycle |
| Diesel engines are compression ignition engines |
| S.I. engines are quality-governed engines. |
10.The air requirement of a petrol engine during starting compared to theoretical required for complete combustion is |
| more |
| loss |
| same |
| may be more or less depending on engine capacity |
| unpredictable. |
More Ic Engines QUESTIONS AND ANSWERS available in next pages
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