P99 LOW PRESSURE BOILER
LICENSE EXAM QUESTIONS AND
COMPLETE SOLUTIONS
A welded repair is allowed on the pressure retaining
area of a boiler or pressure vessel
True
An OS&Y valve offers the least resistance to flow
True
What chemical prevents pitting
Sodium Sulfite
A rotary cup burner atomizes fuel
by means of a spinning cup/high velocity air
Retubed or new boilers are cleaned with
Alkaline Detergent
Where does fuel atomize
At the burner tip
Vacuum gauges are calibrated in inches of
Mercury below
Water boilers should have a ph of
11
What happens if a steam trap continuously blows
through?
Steam vents from the condensate tank
What happens when you have a closed oil vent
Oil spill
Safety valves should be tested
Once a month
, What is the most important fitting on a boiler?
Safety valve
What protects sewer lines from high temperatures and
pressures from blowdowns?
Blowdown tanks
How much horsepower do you need to obtain a black
seal (low or high pressure) license?
OVER 100 horsepower
What is the maximum size blowdown line
2 1/2 inches
When do you close a boiler vent
When steam comes out
Where would you place a water temperature indicator
At the boiler supply
A Chief Engineer is not needed in a low pressure plant
True
The position control cannot function without
Air
What fire tube boiler is most effcient
4 pass
What is the first thing you check when entering a
boiler room
the water level
How often do you check the low water cut off
daily
The on-off controls of a steam boiler are installed
In a vertical position
What letter stamp represent a low-pressure boiler
H
What is the minimum fine for not properly posting a
licence?
LICENSE EXAM QUESTIONS AND
COMPLETE SOLUTIONS
A welded repair is allowed on the pressure retaining
area of a boiler or pressure vessel
True
An OS&Y valve offers the least resistance to flow
True
What chemical prevents pitting
Sodium Sulfite
A rotary cup burner atomizes fuel
by means of a spinning cup/high velocity air
Retubed or new boilers are cleaned with
Alkaline Detergent
Where does fuel atomize
At the burner tip
Vacuum gauges are calibrated in inches of
Mercury below
Water boilers should have a ph of
11
What happens if a steam trap continuously blows
through?
Steam vents from the condensate tank
What happens when you have a closed oil vent
Oil spill
Safety valves should be tested
Once a month
, What is the most important fitting on a boiler?
Safety valve
What protects sewer lines from high temperatures and
pressures from blowdowns?
Blowdown tanks
How much horsepower do you need to obtain a black
seal (low or high pressure) license?
OVER 100 horsepower
What is the maximum size blowdown line
2 1/2 inches
When do you close a boiler vent
When steam comes out
Where would you place a water temperature indicator
At the boiler supply
A Chief Engineer is not needed in a low pressure plant
True
The position control cannot function without
Air
What fire tube boiler is most effcient
4 pass
What is the first thing you check when entering a
boiler room
the water level
How often do you check the low water cut off
daily
The on-off controls of a steam boiler are installed
In a vertical position
What letter stamp represent a low-pressure boiler
H
What is the minimum fine for not properly posting a
licence?
