The biggest size of thermal power unit operating in India is :
A. 30 MW
B. 60 MW
C. 100 MW
D. 210 MW
E. 500 MW
The diameter of cylindrical shell of the Lancashire boiler is of the order of :
A. 1 tp 1.25m
B. 1 to 1.75 m
C. 2 to 4 m
D. 1.75 to 2.75 m
E. 2.25 to 4.5 m
Which of the following is a fire tube boiler :
A. locomotive boiler
B. Babcock and Wilcox boiler
C. Stirling boiler.
D. all of the above
E. none of the above
Lancashire boiler is of :
A. stationary<fire tube-type
B. horizontal type
C. natural cirulation type
D. internally fired type
E. all of the above
Water tube boilers are those in which :
A. flue gases pass through tubes and water around it
B. water passes through the tubes and flue gases around it
C. work is done during adiabatic expansion
D. change in enthalpy
E. none of the above
Steam engine operates on :
A. Carnot cycle
B. joule cycle
C. Stirling cycle
D. Brayton cycle
E. none of the above
The length of Cornish boiler is of the order of :
A. 2-4 m
B. 3-5 m
C. 5-7.5 m
D. 7-9 m
E. 9-11 m
For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is :
A. 1 kg
B. 4/3kg
C. 8/3kg
D. 2 kg
E. 16/3 kg
Which of the following gases has the highest calorific value :
A. producer gas
B. coal gas
C. water gas
D. blast furnace gas
E. coke oven gas
Efficiency of a thermal cycle increases by :
A. regeneration
B. reheating of steam
C. both A. and B.
D. cooling of steam
E. none of the above
