⚙️Mechanical Engineering MCQs
Mechanical Engineering MCQs
488 MCQs341
The high pressure boiler is oiie producing steam at a pressure more than_________________?
Aatmospheric pressure
B5 kg/cm2
C10 kg/cm2
D40 kg/cm2 E. 75-80 kg/cm2
342
The biggest size of thermal power unit operating in India is ________________?
A30 MW
B60 MW
C100 MW
D210 MW E. 500 MW
343
The diameter of cylindrical shell of the Lancashire boiler is of the order of__________________?
A1 tp 1.25m
B1 to 1.75 m
C2 to 4 m
D1.75 to 2.75 m E. 2.25 to 4.5 m
344
Which of the following is a fire tube boiler________________?
Alocomotive boiler
BBabcock and Wilcox boiler
CStirling boiler.
Dall of the above E. none of the above
345
Which of the following substance will have same percentage in both proximate and ultimate analysis___________________?
Aash
Bvolatile matter
Cmoisture
Dhydrogen E. none of the above
346
One kilowatt-hour energy is equivalent to ________________?
A1000 J
B360 kJ
C3600 kJ
D3600 kW/sec E. 1000 kJ
347
100% efficiency of a thermal cycle cannot be achieved because of __________________?
Africtional losses
Bit is not possible to achieve 0°K temperature
Cleakage
Dnon-availability of ideal substance E. none of the above
348
The diameter of fire tube of Cornish boiler compared to its shell is__________________?
Aone half
Bone third
Cone-fifth
Dtwo-fifth E. three-fifth
349
The change in internal energy in steam engines equals to__________________?
Awork done during the rankine cycle ;
Bwork done during compression.
Cwork done during adiabatic expansion
Dchange in enthalpy E. none of the above
350
The shell diameter and length of locomotive boiler are_______________?
A1.5 m, 4 m
B1.5 m, 6 m
C1 m, 4 m
D2 m, 4 m E. 1.5 m, 8 m