Top 50+ Solved Boilers, Mountings and Accessories MCQ Questions Answer
Q. The safety valve on boiler drum compared to safety valve on superheater is set at
a. same value
b. higher value
c. lower value
d. lower/higher depending on steam flow
Q. The capacity of induced draft fan compared to forced draft fan in a boiler is
a. same
b. more
c. less
d. less or more depending on size of boiler
Q. Evaporative capacity of boiler is expressed as
a. kg of steam produced
b. steam pressure produced
c. kg of fuel fired
d. kg of steam produced per kg of fuel fired
Q. The balanced draft furnace is one using
a. induced draft fan and chimney
b. induced draft fan and forced draft fan
c. forced draft fan and chimney
d. any one of the above
Q. Fire tube boilers are limited to a maximum design working pressure of
a. 1 kg/cm
b. 6 kg/cm
c. 17 kg/cm2
d. 100 kg/cm2
Q. For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has
a. more heating surface
b. less heating surface
c. equal heating surface
d. heating surface depends on other parameters
Q. The feed check valve is used in order to
a. regulate flow of boiler water
b. check level of water in boiler drum
c. recirculate unwanted feed water
d. allow high pressure feed water to flow to drum and not allow reverse flow to take place
Q. Equivalent evaporation is the amount of water evaporated in a boiler from and at
a. 0°C
b. 100°C
c. saturation temperature at given pressure
d. room temperature
Q. The equivalent evaporation of a boiler is a measure to compare
a. the given boiler with the model
b. the two different boilers of the same make
c. two different makes of boilers operat¬ing under the same operating conditions
d. any type of boilers operating under any conditions.