The shell diameter and length of locomotive boiler are_______________?

A. 1.5 m, 4 m
B. 1.5 m, 6 m
C. 1 m, 4 m
D. 2 m, 4 m

In locomotive boiler, maximum steam pressure is limited to_______________?

A. 1 kg/cm2
B. 5 kg/cm2
C. 10 kg/cm2
D. 18 kg/cm2

In natural circulation type boiler _______________?

A. Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
B. Water is supplied in durm and through down-comers located in atmospheric conditon it passes to the water wall and rises to drum in the form of mixture of water and steam
C. Feed pump is employed to supplement natural circulation in water wall type furnace
D. Water is converted into steam in one . pass without any recirculation

The diameter of internal flue tubes in a Lancashire boiler compared to its shell is_________________?

A. one-half
B. one-third
C. one-fourth
D. one-fifth

Duplex feed pumps are used in small steam boilers. These operate on the principle of_________________?

A. centrifugal pump
B. axial flow pump
C. gear pump
D. ejector pump

The high pressure boiler is oiie producing steam at a pressure more than_________________?

A. atmospheric pressure
B. 5 kg/cm2
C. 10 kg/cm2
D. 40 kg/cm2

Which of the following is steam dbal?

A. Non-coking bituminous coal
B. Brown coal
C. Pulverised coal
D. Coking bituminous coal

The biggest size of thermal power unit operating in India is ________________?

A. 30 mw
B. 60 mw
C. 100 mw
D. 210 mw

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

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