IC Engine Mock Test 1

10%

Question 1 of 10

1. When the mixture is lean ____________

power output is less

efficiency is less

maximum temperature and pressure are higher

all of the mentioned

Question 1 of 10

Question 2 of 10

2. In a carnot cycle, what is the working fluid?

an ideal gas

a real gas

none of the mentioned

a natural gas

Question 2 of 10

Question 3 of 10

3. The calorific value of gaseous fuels is expressed in terms of ___________

Kcal/m²

Kcal/m³

Kcal/kg

Kcal

Question 3 of 10

Question 4 of 10

4. The thermal efficiency of a diesel engine is about ____________

50%

15%

30%

70%

Question 4 of 10

Question 5 of 10

5. In a Stirling cycle, the heat rejection and addition takes place at constant ___________

none of the mentioned

temperature

pressure

volume

Question 5 of 10

Question 6 of 10

6. The volumetric efficiency of a well designed engine may be ___________

60 to 70%

75 to 90%

40 to 60%

30 to 40%

Question 6 of 10

Question 7 of 10

7. The constant volume cycle is also called ___________

Carnot cycle

Joule cycle

Otto cycle

Diesel cycle

Question 7 of 10

Question 8 of 10

8. Diesel engine can work on very lean air fuel ratio of the order of 30:1. A petrol engine can also work on such a lean ratio provided?

flywheel size is proper

it is properly designed

can not work as it is impossible

best quality fuel is used

Question 8 of 10

Question 9 of 10

9. Dissociation is the disintegration of burnt gases at __________ temperatures.

constant

low

none of the mentioned

high

Question 9 of 10

Question 10 of 10

10. Time loss factor in Actual Cycle is due to ____________

gas leakage

progressive combustion

friction

heat loss through cylinder walls

Question 10 of 10