3rd Class Stationary Steam Engineer
License Prep Questions with Answers
_________ are necessary for complete combustion - Correct Answers time,
temperature, mixture, and atomization
If the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ -
Correct Answers214.7
A boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at
398 PSI. The blow down is______psi - Correct Answers12
An oil cooler is commonly used with a (n) ________ when operating in conjunction with
a turbo-generator - Correct Answers steam turbine
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 -
Correct Answers superheated
The economizer on a boiler is used to _______ - Correct Answers add heat to the feed
water
Blowers are normally used with________ boilers - Correct Answers water tube
Overheating of tubes on a boiler can be caused by________ - Correct Answers scale
on tubes
Carbon dioxide in a condensate returns system causes_________ - Correct Answers
channeling
A ________ pump is a positive displacement pump - Correct Answers reciprocating
A boiler generating 6000 lb. of steam/hr. produces _______but/hr. - Correct Answers6,
000,000
A bottom blow down is performed on a boiler to _____ - Correct Answers discharge
sludge and sediment
Water columns are connected to the boiler with a minimum of _______" pipe - Correct
Answers1
,The minimum size of a water column blows down valve is_______". - Correct
Answers3/4
The maximum size bottom blows down valve on a boiler is_________". - Correct
Answers2 1/2
A ________ allows condensate to pass through, but stops Steam. - Correct Answers
steam trap
When taking over a shift, the first thing to do is check the________ - Correct Answers
water level in each boiler
according to the same code, a high-pressure boiler having more than 500 square feet of
heating surface shall have________ - Correct Answers two or more safety valves
The probable cause of an increase in temperature of gases of combustion at the boiler
Outlet is____ - Correct Answers dirty heating services
Boilers in battery equipped with________ must have two main steam stop valves and a
free-flowing drain between them - Correct Answers manhole openings
In order to be sure the gauge glass is indicating an accurate water level reading, the
stationary engineer should______ - Correct Answers lowdown the gauge glass
A continuous blow down line is located___ - Correct Answers in the Steam and water
drum well below the now
A temperature reading of 80 degrees Celsius is equal to_________°f - Correct
Answers176
A chimney temperature of 250 degrees Fahrenheit above steam temperature
indicates_______ - Correct Answer spoor efficiency
A manometer is red in________ - Correct Answers inches of water
The boiling point of water will____ with an increase in pressure - Correct Answers be
raised
If a lather is not obtained when performing a soap hardness test, the water sample
is_______ - Correct Answer shard
Combustion efficiency can be increased when air is________ - Correct Answers
preheated
______ Draft is produced by a fan located between the boiler and the chimney -
Correct Answers induced
, the over speed trip on a steam turbine should be tested ______ - Correct Answers
before putting the steam turbine on-line
A high CO2 reading in the gases of combustion is a sign of____ - Correct Answers
High combustion efficiency
The purpose of chemically treating feed water is to________ - Correct Answers turn
scale-forming salts to a non-adhering sludge
Water in a d rating feed water heater is prevented from entering the steam line by a (n)
_______. - Correct Answer sloop seal or internal overflow
A steam turbine operating at 3600 RPM will trip at_________ rpm - Correct
Answers3960
He steam line going to The Blowers is connected to the main ________ - Correct
Answers steam drum
Before using blowers on a boiler, ________ - Correct Answers drain set blower lines
An accumulation of snow on the Fireside of a boiler tubes________ - Correct Answers
decreases boiler efficiency
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 - Correct Answer
sunder
the range of a pressure gauge should be twice the safety valve setting, but not less
than______ time (s) the safety valve setting - Correct Answers1 1/2
Hard scale formed on the inside of tubes is best removed by________ - Correct
Answers air- or water-driven turbines
To correct a low water condition, _____ - Correct Answers secure fires
Desuperheater drain is used to_______ - Correct Answers establish steam flow
A sudden rise in chimney temperature with no increase in load indicates______ -
Correct Answers there is a broken baffle
The but content of natural gas is_____ - Correct Answers100, 000 but/thermo
The safety valve setting on the Steam and water drum is ________ a superheated
safety valve - Correct Answers higher than
License Prep Questions with Answers
_________ are necessary for complete combustion - Correct Answers time,
temperature, mixture, and atomization
If the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ -
Correct Answers214.7
A boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at
398 PSI. The blow down is______psi - Correct Answers12
An oil cooler is commonly used with a (n) ________ when operating in conjunction with
a turbo-generator - Correct Answers steam turbine
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 -
Correct Answers superheated
The economizer on a boiler is used to _______ - Correct Answers add heat to the feed
water
Blowers are normally used with________ boilers - Correct Answers water tube
Overheating of tubes on a boiler can be caused by________ - Correct Answers scale
on tubes
Carbon dioxide in a condensate returns system causes_________ - Correct Answers
channeling
A ________ pump is a positive displacement pump - Correct Answers reciprocating
A boiler generating 6000 lb. of steam/hr. produces _______but/hr. - Correct Answers6,
000,000
A bottom blow down is performed on a boiler to _____ - Correct Answers discharge
sludge and sediment
Water columns are connected to the boiler with a minimum of _______" pipe - Correct
Answers1
,The minimum size of a water column blows down valve is_______". - Correct
Answers3/4
The maximum size bottom blows down valve on a boiler is_________". - Correct
Answers2 1/2
A ________ allows condensate to pass through, but stops Steam. - Correct Answers
steam trap
When taking over a shift, the first thing to do is check the________ - Correct Answers
water level in each boiler
according to the same code, a high-pressure boiler having more than 500 square feet of
heating surface shall have________ - Correct Answers two or more safety valves
The probable cause of an increase in temperature of gases of combustion at the boiler
Outlet is____ - Correct Answers dirty heating services
Boilers in battery equipped with________ must have two main steam stop valves and a
free-flowing drain between them - Correct Answers manhole openings
In order to be sure the gauge glass is indicating an accurate water level reading, the
stationary engineer should______ - Correct Answers lowdown the gauge glass
A continuous blow down line is located___ - Correct Answers in the Steam and water
drum well below the now
A temperature reading of 80 degrees Celsius is equal to_________°f - Correct
Answers176
A chimney temperature of 250 degrees Fahrenheit above steam temperature
indicates_______ - Correct Answer spoor efficiency
A manometer is red in________ - Correct Answers inches of water
The boiling point of water will____ with an increase in pressure - Correct Answers be
raised
If a lather is not obtained when performing a soap hardness test, the water sample
is_______ - Correct Answer shard
Combustion efficiency can be increased when air is________ - Correct Answers
preheated
______ Draft is produced by a fan located between the boiler and the chimney -
Correct Answers induced
, the over speed trip on a steam turbine should be tested ______ - Correct Answers
before putting the steam turbine on-line
A high CO2 reading in the gases of combustion is a sign of____ - Correct Answers
High combustion efficiency
The purpose of chemically treating feed water is to________ - Correct Answers turn
scale-forming salts to a non-adhering sludge
Water in a d rating feed water heater is prevented from entering the steam line by a (n)
_______. - Correct Answer sloop seal or internal overflow
A steam turbine operating at 3600 RPM will trip at_________ rpm - Correct
Answers3960
He steam line going to The Blowers is connected to the main ________ - Correct
Answers steam drum
Before using blowers on a boiler, ________ - Correct Answers drain set blower lines
An accumulation of snow on the Fireside of a boiler tubes________ - Correct Answers
decreases boiler efficiency
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 - Correct Answer
sunder
the range of a pressure gauge should be twice the safety valve setting, but not less
than______ time (s) the safety valve setting - Correct Answers1 1/2
Hard scale formed on the inside of tubes is best removed by________ - Correct
Answers air- or water-driven turbines
To correct a low water condition, _____ - Correct Answers secure fires
Desuperheater drain is used to_______ - Correct Answers establish steam flow
A sudden rise in chimney temperature with no increase in load indicates______ -
Correct Answers there is a broken baffle
The but content of natural gas is_____ - Correct Answers100, 000 but/thermo
The safety valve setting on the Steam and water drum is ________ a superheated
safety valve - Correct Answers higher than
