2026\COMPLETE QUESTIONS AND CORRECT
ANSWERS\VERIFIED 100% \GRADED A+
The purpose of the downcomer is to supply:
A Hot water to the steam drum
B Cool water to the steam drum
C Cool water from the steam drum to the rest of the
boiler
D Steam to the steam drum
E Boiler feed water to the boiler
C
These types of boilers [A, D, and O] have furnaces
cooled by_______lining the furnace walls
A Watertubes
B Fans
C Desuperheaters
D Air circulation
A
,A steam generating unit consists of a number of
elements all of which contribute to the production of
steam. The elements of a typical steam generator
include:
1 Boiler
2 Superheater
3 Ash removal equipment
4 Reheater
5 Economizer
6 Steam piping
7 Air heater
8 Fuel equipment
9 Draft fans
A 1,2,7,8,9
B 1,2,4,5,7,8,9
C 3,4,6,7,8
D 1,2,3,4,5,7,8,9
D
,In steam generating units the feed water entering the
boiler section 1st passes through the ____ section
where it is heated by the combustion gases leaving
the boiler
A Furnace
B Economizer
C Boiler drum
D Superheater
B
Combustion air for the burners is preheated to
________in the air heater section by combustion gas is
leaving the economizer section
A 150°C
B 100°C
C 350°C
D 500°C
C
, Generally two types of draft fans are used. A______
_________fan supplies air to the preheater. The preheated
air [350°C] for combustion goes to the coal
pulverizers and to the burners. An _________ fan
exhaust the combustion gases [170°C] from the air
heater to the stack
A Centre mounted, external mounted
B Forced draft, induced draft
C Induced draft, forced draft
D Turbine draft, ejection draft
B