Mechanical Engineering - Steam Boilers and Engines


"Success has many fathers, while failure is an orphan."
- (Proverb)

The object of producing draught in a boiler is

A. to provide an adequate supply of air for the fuel combustion
B. to exhaust the gases of combustion from the combustion chamber
C. to discharge the gases of combustion to the atmosphere through the chimney
D. all of the above


In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to

A. water space also
B. chimney
C. steam space
D. superheater


In water tube boilers

A. water passes through the tubes which are surrounded by flames and hot gases
B. the flames and hot gases pass through the tubes which are surrounded by water
C. forced circulation takes place
D. none of these


Which of the following statement is wrong ?

A. Locomotive boiler is a water tube boiler.
B. Water tube boilers are internally fired.
C. La-mont boiler is a low pressure water tube boiler.
D. all of the above


A grate, in a boiler, is a place in the combustion chamber upon which fuel (wood or coal) is burnt.

A. TrueB. False

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