Boiler License Test
Natural draft is produced by? difference in temperature outside chimney from inside chimney
If a draft fan is located between the boiler and chimney, Induced
draft what type of draft system is it?
boiler fittings are important for: safety only
, thermostatic traps remove air and cool condensate: true
True
or false
The main purpose of testing a safety value is to: make sure valve operates freely
when testing a safety valve by hand, you must: have at least 75% of popping pressure
If a license is expired, how long can it be expired before it 3
years is null and void?
What is the purpose of a check valve? prevent reverse flow, allows flow in one direction
What is a solenoid valve? An automatic gas shutoff valve
What # oil needs to be preheated with what piece of #6 oil with a
heater equipment?
What type of test is a hardness test? A titration test
What is the most important rule in operating boilers? keep water at proper level
what is the capacity of a safety valve measured in? Pounds of steam per house (#steam/hr)
What prevents a furnace explosion? The purge cycle
Ignition failure would cause activation of the: Purge Cycle
What is the most common cause of cast iron boiler Cracking
failure?
What is the most common cause of problems in a hot Air
water system?
Where would you place a water temperature indicator? At the boiler supply
A chief engineer is not needed in a low pressure plant: True
true or false
The positioning control cannot function without? air
what fire tube boiler is most efficient 4 pass
What is the maximum size blowdown line? 2 1/2 inches
when do you close a boiler vent? When steam comes out
Carryover can lead to: water hammer
Natural draft is produced by? difference in temperature outside chimney from inside chimney
If a draft fan is located between the boiler and chimney, Induced
draft what type of draft system is it?
boiler fittings are important for: safety only
, thermostatic traps remove air and cool condensate: true
True
or false
The main purpose of testing a safety value is to: make sure valve operates freely
when testing a safety valve by hand, you must: have at least 75% of popping pressure
If a license is expired, how long can it be expired before it 3
years is null and void?
What is the purpose of a check valve? prevent reverse flow, allows flow in one direction
What is a solenoid valve? An automatic gas shutoff valve
What # oil needs to be preheated with what piece of #6 oil with a
heater equipment?
What type of test is a hardness test? A titration test
What is the most important rule in operating boilers? keep water at proper level
what is the capacity of a safety valve measured in? Pounds of steam per house (#steam/hr)
What prevents a furnace explosion? The purge cycle
Ignition failure would cause activation of the: Purge Cycle
What is the most common cause of cast iron boiler Cracking
failure?
What is the most common cause of problems in a hot Air
water system?
Where would you place a water temperature indicator? At the boiler supply
A chief engineer is not needed in a low pressure plant: True
true or false
The positioning control cannot function without? air
what fire tube boiler is most efficient 4 pass
What is the maximum size blowdown line? 2 1/2 inches
when do you close a boiler vent? When steam comes out
Carryover can lead to: water hammer
