A. 2-stroke engine
B. 4-stroke petrol engine
C. 4-stroke diesef engine
D. multi-cylinder engine
E. gas turbine
Related Mcqs:
- The air-fuel ratio in gas turbines is of the order of ______________________?
A. 7 : 1
B. 15 : 1
C. 30 : 1
D. 40 : 1
E. 50: 1 - Air-fuel ratio in a jet engine will be of the order of__________________?
A. 10: 1
B. 15: 1
C. 20 : 1
D. 60 : 1
E. 100 : - High air-fuel ratio is used in gas turbines______________________?
A. to increase the output
B. to increase the efficiency
C. to save fuel
D. to reduce the exit temperature
E. none of the above - There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would__________________?
A. remain same
B. decrease
C. increase
D. unpredictable
E. none of the above - In jet engines, paraffin is usually used as the fuel because of its _________________?
A. high calorific value
B. ease of atomisation
C. low freezing point
D. A. and C. above
E. none of the above - A closed gas turbine in which fuel is burnt directly in the air is not possible because of__________________?
A. high pressure ratio
B. increasing gas temperature
C. high specific volume
D. high friction losses
E. paucity of 02 - The ratio of work doen per cycle to the swept volume in case of compressor is called ______________?
A. compression index
B. compression ratio
C. compressor efficiency
D. mean effective pressure
E. compressor effectiveness - The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called__________________?
A. slip factor
B. velocity factor
C. velocity coefficient
D. blade effectiveness - Free air is the air at________________?
A. atmospheric conditions at any specific location
B. 20°C and 1 kg/cm2 and relative humidity of 36%
C. 0°C and standard atmospheric conditions
D. 15°C and 1 kg/cm2
E. 25°C, 1 kg/cm2 and relative humidity of 50%. - Standard air is the air at_____________________?
A. atmospheric conditions at any specific location
B. 20°C and 1 kg/cm2 and relative humidity 36%
C. 0°C and standard atmospheric conditions
D. 15°C and 1 kg/cm2
E. 25°C, 1 kg/cm2 and RH of 60%.
