1st Class Stationary Engineers Exam
All Boilers should be viewed as - Answer- Dangerous regardless of size and
pressure
One cubic inch of hot water under pressure expands to - Answer- almost one cubic
foot of steam at atmospheric pressure
Primary air is usually... - Answer- Blown into the combustion chamber, along with the
fuel on a gas or oil burner.
Heat always flows from ____ to ____ - Answer- hot to cold
An accumulation test is used to determine - Answer- the relieving capacity of a
safety valve
Staging is a method used to - Answer- increase the pressure of a gas or liquid in
step rather than all at once.
All vacuum return heating systems require - Answer- traps
Boiler water can be conditioned by - Answer- heating addition of chemicals and by
blow down
Water which contains scale-forming impurities is termed - Answer- hard water
33,478 BTUs equal - Answer- One boiler horsepower
One purpose of automatic control is to insure - Answer- the safe operation of a
system
Is it possible to find all three types of heat transfer working at the same time? -
Answer- Yes
A vapor can best be defined as a - Answer- physical state between a liquid and a
gas
a firetube contains - Answer- the products of combustion
a pigtail is used on a steam gauge connection to - Answer- prevent damage to the
gauge
a convection type superheater - Answer- absorbs its heat from the hot gases of
combustion
All residential air conditioners use - Answer- Freon
A hydrostatic test is a test for - Answer- the tightness of boiler drums and tubes
, One of the most important aspects of a boiler plant is the - Answer- Boiler supply
One BTU will raise the temperature of one pound of water by - Answer- one degree
fahrenheit
Steam and water can be found - Answer- at the same temperature in a boiler
Superheated steam is always - Answer- Dry
at sea level, water boils at - Answer- 212 Degrees F
Larger pipe sizes are found on - Answer- One pipe systems
the explosion hazard in a oil-fired boiler is usually greatest when - Answer- Lighting
off
A good over the fire draft in a natural draft furnace should be approximately -
Answer- .05 inches of water negative pressure
A compound gage is calibrated to read - Answer- Vacuum and pressure
An ammeter is always connected to an electric circuit in - Answer- Series with a
shunt
A two-stage air compressor contains - Answer- 2 Cylinders
The heating surface of a tube in an HRT boiler is located - Answer- On the Outside
The type of brace most commonly used in an HRT Boiler above the tubes is a -
Answer- Diagonal stay
Incomplete combustion in a boiler furnace is most often caused by - Answer-
Insufficient amount of air
The tensile strength of a boilerplate is - Answer- 55,000
Special types of fittings are used to take up the expansion in steam lines. One of
these fitting is - Answer- Expansion joints
Which of the following is not an important consideration when burning coal? -
Answer- The purge cycle of the burner
Viscosity can best be described as an oil's ability to - Answer- Be Pumped.
Heat transfer occurs in liquids and gases by means of - Answer- Convection
A boiler pressure gauge gives readings in - Answer- Gauge pressure
All Boilers should be viewed as - Answer- Dangerous regardless of size and
pressure
One cubic inch of hot water under pressure expands to - Answer- almost one cubic
foot of steam at atmospheric pressure
Primary air is usually... - Answer- Blown into the combustion chamber, along with the
fuel on a gas or oil burner.
Heat always flows from ____ to ____ - Answer- hot to cold
An accumulation test is used to determine - Answer- the relieving capacity of a
safety valve
Staging is a method used to - Answer- increase the pressure of a gas or liquid in
step rather than all at once.
All vacuum return heating systems require - Answer- traps
Boiler water can be conditioned by - Answer- heating addition of chemicals and by
blow down
Water which contains scale-forming impurities is termed - Answer- hard water
33,478 BTUs equal - Answer- One boiler horsepower
One purpose of automatic control is to insure - Answer- the safe operation of a
system
Is it possible to find all three types of heat transfer working at the same time? -
Answer- Yes
A vapor can best be defined as a - Answer- physical state between a liquid and a
gas
a firetube contains - Answer- the products of combustion
a pigtail is used on a steam gauge connection to - Answer- prevent damage to the
gauge
a convection type superheater - Answer- absorbs its heat from the hot gases of
combustion
All residential air conditioners use - Answer- Freon
A hydrostatic test is a test for - Answer- the tightness of boiler drums and tubes
, One of the most important aspects of a boiler plant is the - Answer- Boiler supply
One BTU will raise the temperature of one pound of water by - Answer- one degree
fahrenheit
Steam and water can be found - Answer- at the same temperature in a boiler
Superheated steam is always - Answer- Dry
at sea level, water boils at - Answer- 212 Degrees F
Larger pipe sizes are found on - Answer- One pipe systems
the explosion hazard in a oil-fired boiler is usually greatest when - Answer- Lighting
off
A good over the fire draft in a natural draft furnace should be approximately -
Answer- .05 inches of water negative pressure
A compound gage is calibrated to read - Answer- Vacuum and pressure
An ammeter is always connected to an electric circuit in - Answer- Series with a
shunt
A two-stage air compressor contains - Answer- 2 Cylinders
The heating surface of a tube in an HRT boiler is located - Answer- On the Outside
The type of brace most commonly used in an HRT Boiler above the tubes is a -
Answer- Diagonal stay
Incomplete combustion in a boiler furnace is most often caused by - Answer-
Insufficient amount of air
The tensile strength of a boilerplate is - Answer- 55,000
Special types of fittings are used to take up the expansion in steam lines. One of
these fitting is - Answer- Expansion joints
Which of the following is not an important consideration when burning coal? -
Answer- The purge cycle of the burner
Viscosity can best be described as an oil's ability to - Answer- Be Pumped.
Heat transfer occurs in liquids and gases by means of - Answer- Convection
A boiler pressure gauge gives readings in - Answer- Gauge pressure
