QUESTIONS WITH CORRECT ANSWERS
A pulsating effect in the furnace of an oil fired boiler could be caused
by? -correct answer-Insufficient combustion air supply
The burner assembly sprayer plate controls the
. - correct
answer-Flow of the fuel in the whirling chamber
The primary air flow through the burner register provides air necessary for
. -correct answer-Sustained combustion in the
furnace
The boiler superheater raises the temperature of the .-
correct
answer-Steam leaving the boiler
When the boiler firing rate increases, combustion control does what? -
correct answer-Increases the air first, followed by the fuel
,A natural gas leak will concentrate near, where? -correct answer- Ceiling,
(Nat gas is light so it rises up whereas propane is heavier than air and will
settle down to the floor.)
The condition where a boiler flame comes out the front of oil fired boiler
is called what? -correct answer-Blowback
How do you know if the fuel oil heater has a coil leak? -correct answer-
An oil ring inside the steam drum
Which chemical is not involved in demineralizing?
A. Sodium Carbonate
B. Sulfuric Acid
C. Sodium Chloride
D. Sodium Hydroxide -correct answer-C. Sodium Chloride
When the steam demand increases, combustion control -correct
answer-Increases the fuel and air at the burner
High water in the boiler is corrected by -correct answer-Opening the
bottom blow
, A Mercury Barometer measures what? -correct answer-Atmospheric
pressure
Boiler water conductivity is measured in what? -correct answer-
MicroMhos
The boiler master controller, maintains what? -correct answer-Steam
drum pressure
A two element feed water system measures what? -correct answer-
Drum level and steam flow
The best time to bottom blow a boiler is when? -correct answer-At
lowest firing rate
One boiler hp equals? -correct answer-33,472 BTU
What lubricates piston rod on 'water end' of a duplex pump? -correct
answer-Water