Special Boiler License Practice Exam Minnesota Correct 100%
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Course
DC Boiler
Institution
DC Boiler
How many way can heat be transferred? - ANSWER Three (Conduction -- Convection -- Radiation)
How may types of low pressure are there? - ANSWER Three
Boiler and boiler fitting used in the state of Minnesota must be constructed to what code? - ANSWER A.S.M.E
What controls the starting ans st...
Special Boiler License Practice Exam
Minnesota Correct 100%
How many way can heat be transferred? - ANSWER Three (Conduction -- Convection -- Radiation)
How may types of low pressure are there? - ANSWER Three
Boiler and boiler fitting used in the state of Minnesota must be constructed to what code? - ANSWER
A.S.M.E
What controls the starting ans stopping of the burner by sending the temperature of the water in a hot
water boiler? - ANSWER Aqua Stat
When a hydrostatic test of a boiler exceeds the maximum allowed working pressure each safety valve, if
left attached to the boiler, should: - ANSWER Have its valve disc held to its seat by means of testing
clamp or "gag"
Heat can be transferred in three ways and they are: - ANSWER Conduction --Convection - Radiation
The first sequence in the series of automatic burner control is: - ANSWER Purging
Can a low water low water condition i a hot water heating type boiler? - ANSWER Yes, for numerous
reasons
Other than a safety relieve valve what other safety device should be installed on a hot water heating
boiler? - ANSWER Low water cut off
Each boiler in a battery (pipe together sharing the same common header) must have: - ANSWER A main
stem stop
, what removes air from a hot water boiler system? - ANSWER Air Control
In a stem boiler system, the unit that turns be burner on and off based on steam pressure is the: -
ANSWER Pressure Control
If water in the gauge is not visible because of failure of the feed water supply, what should be done? -
ANSWER Shut off the fuel to the burner and secure the boiler.
What conditions are necessary to cause a furnace explosion? - ANSWER Accumulation of unburned fuel,
oxygen and an ignition source
The LWCO should be tested: - ANSWER Daily
Gauge pressure plus 14.7 psi is called what? - ANSWER Absolute pressure
The evaporation of 34.5 ponds of water per hour from and at a temperature of 212 degrees Fahrenheit is
defined as: - ANSWER One boiler horsepower
When a safety valve opens and closes rapidly it is referred to as - ANSWER Chattering
Furnace explosions are caused by a buildup of combustible gases, or vapors in the combustion chamber,
what is the term used to remedy this condition? - ANSWER Purging
Why is a pigtail or siphon required in steam pressure gauge lines? - ANSWER to protect the gauge from a
high temperature.
In a stem boiler system, what is the term used for replacing the water that has been lost by blowing
down the boiler through leaks in the system? - ANSWER A make up water
On steam boiler system, why are bottom blow down valves installed at the lowest point of the waterside
of boilers? - ANSWER To remove sludge and sediment.
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