3rd Class Stationary Steam Engineer License Exam 2024/2025
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Course
3rd Class Stationary Steam Engineer License
Institution
3rd Class Stationary Steam Engineer License
______ draft is produced by a fan located between the boiler and the chimney - Answer induced
_______ gauge glasses are used on boilers with precious exceeding 250 psi - Answer flat
_______ is caused by allowing sudden extreme changes of temperature in a furnace - Answer spalling
________ boi...
3rd Class Stationary Steam Engineer License Exam
2024/2025
______ draft is produced by a fan located between the boiler and the
chimney - Answer induced
_______ gauge glasses are used on boilers with precious exceeding
250 psi - Answer flat
_______ is caused by allowing sudden extreme changes of
temperature in a furnace - Answer spalling
________ boilers can operate at higher pressures than fire tube boilers
- Answer water tube
_________ are necessary for complete combustion - Answer time,
temperature, mixture, and atomization
_________ is always necessary in the combustion process - Answer
oxygen
_________ is required for combustion - Answer atomization of fuel,
oxygen, and Heat
__________ combustion is when all fuel is burned using only the
theoretical amount of air - Answer perfect
__________ steam turbines allow condensate to be reclaimed for use in
the system - Answer condensing
_________is carrying over particles of water with the steam -
Answer priming a ________ allows condensate to pass through, but
stops Steam. - Answer a steam trap
a ________ pump is a positive displacement pump - Answer
reciprocating a (n) _______ valve offers the least resistance to flow -
Answer gate a boiler burning fuel oil and using forced-draft
requires. ________ cu ft a furnace volume per boiler horsepower -
Answer .75
,a boiler connected in battery requires a free blowing drain between
the two stop valves when the ______ - Answer boiler has a manhole
opening
a boiler equipped with a draft gauge and registering a negative
pressure indicates. _________ - Answer atmospheric pressure is
greater than furnace pressure
a boiler evaporates 48,000 lb of steam/hr. it evaporates 12 lb of
steam/sq ft of heating surface per hour. The boiler has _______ as ft of
heating surface - Answer
4000
a boiler generating 6000 lb of steam/hr produces _______btu/hr -
Answer
6,000,000
a boiler is operating at 400 PSI, and the safety valve opens at 410
PSI and closes at 398 PSI. The blowdown is______psi - Answer 12
a boiler is producing 40,000lb of steam/hr at a pressure of 100 PSI
and a steam temperature of 500 degrees Fahrenheit. The steam
produced is _______ steam - Answer superheated
a boiler is rated at 30,000 lb/hr and has a 5% blow down loss. The
minimum size feed water pump to supply this boiler is ________
gal./hr. - Answer 3795 a boiler with 3450 sq ft of heating surface
design for 5 sq ft of heating surface / BHP has ________ hp - Answer
690
a boiler with a draft gauge showing a positive pressure
indicates_____ - Answer furnace pressure is above atmospheric
pressure
a bottom blowdown is performed on a boiler to _____ - Answer
discharge sludge and sediment
a broken baffle on a water tube boiler would cause ________ - Answer
increase in chimney temperature
a bypass damper on an air heater _______ - Answer prevent moisture
from collecting at low firing rates
a chimney temperature of 250 degrees Fahrenheit above steam
temperature indicates_______ - Answer poor efficiency
, a closed feedwater heater is always installed_______ - Answer on the
discharge side of the feed water pump
a closed feedwater heater is always installed. ________ - Answer on
the discharge side of the feed water pump
a combustion control on a boiler. _______ - Answer controls the air-
fuel ratio
a compound gauge registers ________% - Answer either vacuum or
pressure a condensate pump is located 75 ' below the feed water
heater and its discharged gauge reads 75 PSI. The pressure at the
inlet to the heater is. _______ psi - Answer 42.525
a continuous blowdown line is located___ - Answer in the Steam and
water drum well below the nowl
a deposit of scale or mud in an HRT boiler could cause_____ - Answer
a bag to develop
a dry pipe separator _____ - Answer delivers higher-quality steam to
the header a dry pipe separator in a boiler _______ - Answer maintains
a high-quality Steam a duplex double-acting reciprocating feed
water pump has____ - Answer to steam Pistons 2 to 2 2/2 times larger
in area than the water piston a duplex reciprocating feed water
pump operates on the principle that the _______ - Answer steam
piston area must be 2 to 2 1/2 times larger than the water piston
a feed water pump will become steam bound if the ________ -
Answer water temperature in the open feedwater heater is too
high a flame rod_______ - Answer ensures that the gas pilot is
lighted a flame scanner proves (verifies) __________ - Answer pilot in
Maine Flame a gas pressure regulator is used to control the ______ -
Answer gas pressure at the burner
a glass is used to ______ - Answer indicate the water level in the
boiler a globe valve installed in the feed water line between the feed
water pump and boiler has a pressure from the feed water
pump_________ the valve disc - Answer under
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