1. Volumetric efficiency of diesel engines is higher than that of SI engines |
2. When a SI engine is throttled; its mechanical efficiency decreases. |
3. Specific fuel consumption increases as the power capacity of the engine increases. |
4. Inspite of higher compression ratios, the exhaust temperature in diesel engines is much lower than that in SI engines. |
A) 1, 2, 3 and 4 are correct
B) 1, 2 and 3 are correct
C) 3 and 4 are correct
D) 1, 2 and 4 are correct
Correct Answer: A
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