IC Engine Mock Test 2

10%

Question 1 of 10

1. The ratio of actual cycle efficiency to that of the ideal cycle efficiency is called ____________

work ratio

net efficiency

effectiveness

efficiency ratio

Question 1 of 10

Question 2 of 10

2. Carbon residue in diesel oil should not be more than ___________

0.5%

0.1%

0.01%

Question 2 of 10

Question 3 of 10

3. A fuel will detonate less if it has ___________

proper self ignition temperature

lower self ignition temperature

none of the mentioned

higher self ignition temperature

Question 3 of 10

Question 4 of 10

4. The heating value per unit volume of hydrogen gas is less than ______________ that of air.

1/10th

1/12th

1/3rd

2/3rd

Question 4 of 10

Question 5 of 10

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

0.1 sec

0.002 sec

0.001 sec

0.01 sec

Question 5 of 10

Question 6 of 10

6. Polymerization is a chemical process in which molecules of a compound become ___________

gaseous

larger

smaller

liquid

Question 6 of 10

Question 7 of 10

7. Hydrocarbons are decomposed into smaller hydrocarbons by ___________

polymerization

reforming

cracking

refining

Question 7 of 10

Question 8 of 10

8. 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

bigger cylinder bore

smaller cylinder bore

medium cylinder bore

Question 8 of 10

Question 9 of 10

9. To reduce the possibility of knock in C.I. engines, the first elements of fuel and air should have ___________

high temperature

high density

all of the mentioned

short delay

Question 9 of 10

Question 10 of 10

10. Fuel air ratio affects maximum power output of the engine due to ____________

all of the mentioned

chemical equilibrium losses

higher specific heats

none of the mentioned

Question 10 of 10