Top 350+ Solved Heat Engines MCQ Questions Answer

a. Reduce exhaust temperature

b. Convert carbon monoxide into carbon dioxide

c. Reduce combustion knock

d. Cool the engine cylinder

e. All of the above

a. Peak load plant

b. Casual run plant

c. Base load plant

d. All of the above

e. None of the above

a. Mechanical efficiency

b. Volumetric efficiency

c. Ignition delay period

d. Effective compression ratio

e. Clearance volume

a. None of above

b. Blade friction loss

c. Nozzle loss

d. All of above

e. Wheel friction loss

a. Non-toxic

b. Non-inflammable

c. Colourless

d. Pungent odour

e. None of the above

a. Anywhere

b. As intercooler

c. After final stage compression

d. Depends upon size of installation

e. Prior to first stage compression

a. Eight times

b. No change

c. Sixteen times

d. Doubled

e. Four times

a. Compress 50 cu feet per min of free air

b. Compress 50 cu feet per min of standard air

c. Deliver 50 cu feet of compressed air at delivery pressure

d. Delivers 50 cu ft. per minute of compressed air

e. None of the above

a. 42.80%

b. 60%

c. 62.80%

d. 80%

e. 37.20%

a. Dual cycle

b. Brayton cycle

c. Carnot cycle

d. Otto cycle

e. Rankine cycle

a. Reserve generating capacity that is in operation but in service

b. Reserve generating capacity that is connected to bus and ready to take load

c. Reserve generating capacity that is available for service but not in operation

d. Capacity of the part of plant that remains under maintenance

e. None of the above

a. 0.50%

b. 0.05%

c. 1%

d. 0.01%

e. 0.10%

a. Inject wet steam into superheater

b. Inject steam into steam engine cylinder

c. Inject secondary air in boiler furnace

d. Inject water boiler

e. Inject exhaust gases into chimney

a. Unit of momentum

b. Unit of time

c. Unit of area

d. Unit of length

e. Unit of mass

a. Locomotive boiler

b. Cornish boiler

c. Cochran boiler

d. Lancashire boiler

e. All of the above