IC Engine Mock Test 2

10%

Question 1 of 10

1. The volumetric efficiency is affected by ____________

the exhaust gas in the clearance volume

all of the mentioned

the design of intake and exhaust valve

valve timing

Question 1 of 10

Question 2 of 10

2. The delay period in petrol engine is of the order of ___________

0.01 sec

0.002 sec

0.001 sec

0.1 sec

Question 2 of 10

Question 3 of 10

3. The detonation tendency in petrol engines for specified conditions of fuel rating, compression ratio, speed, etc, can be controlled by having ___________

none of the mentioned

smaller cylinder bore

medium cylinder bore

bigger cylinder bore

Question 3 of 10

Question 4 of 10

4. Stoichiometric air-fuel ratio of alcohol when compared to gasoline is?

none of the mentioned

lower

higher

equal

Question 4 of 10

Question 5 of 10

5. A fuel will detonate less if it has ___________

higher self ignition temperature

proper self ignition temperature

lower self ignition temperature

none of the mentioned

Question 5 of 10

Question 6 of 10

6. What is the major disadvantage of LPG as fuel in automobiles?

reduction in life of engine & less power compared to gasoline

less power compared to gasoline

none of the mentioned

reduction in life of engine

Question 6 of 10

Question 7 of 10

7. The ash content in diesel oil should not be more than ___________

0.01%

0.1%

Question 7 of 10

Question 8 of 10

8. Mean effective pressure at a given compression ratio is maximum when the air fuel ratio is?

none of the mentioned

lower than stoichiometric

higher than stoichiometric

equal to stoichiometric

Question 8 of 10

Question 9 of 10

9. In a diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of ___________

1000ºC

250ºC

500ºC

1500ºC

Question 9 of 10

Question 10 of 10

10. Natural gas obtained from oil wells is known as ___________

casing head gas

none of the mentioned

dry gas

wet gas

Question 10 of 10