4th TSSA Part B - Unit 4 Boiler Plant Operation and Management Exam |
Questions with Correct Answers | 100% Pass
Larger capacity, high pressure fuel trains are - more complex
The main burner test firing valve should be opened - before starting the main burner
What is the recommended boiler water pH for wet layup? - 10
R4B04-03-03-07 Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion. -
purge
R4B04-05-02-01 When cooling down a steam boiler that has been taken out of service, a vent valve on a
steam drum should be opened to: - Prevent a vacuum from forming in the boiler
How often should operator rounds be performed? - 1 to 3 times per shift
What should Power Engineers carry at all times? - a flashlight
When a power failure occurs, control valves - go to a fail-safe position.
When a combustion air opening is equipped with dampers, the dampers must be - interlocked
with the burner, and fully open before starting the boiler.
New boilers require a _____________ and a _____________ dry-out before entering operation. -
boil-out, refractory
R4B04-03-03-11 If a steam boiler is in service and no water level shows in the gauge glass, the first
action would be to: - determine whether the gauge glass is completely full or completely empty.
, Because natural gas is colourless and odourless, ___________ is added to the gas so that it is easier to
detect a leak. - mercaptan
In a multiple boiler high pressure steam plant, when starting an entire system from cold - The
entire system warms and pressurizes as one boiler warms, except for the boilers being left off line.
On a semi-automatic ignition system, the switch on the supervised cock - keeps the boiler from
pre-purging if the main test firing valve is open.
Which code contains information on safety valves for high pressure steam boilers? - ASME
Section I
R4B04-01-02-04 New refractory in a boiler must be thoroughly dried on low fire - to dry the
refractory slowly and keep it from cracking.
What is the recommended test frequency for flame safeguard devices? - weekly
If the safety relief valve of a hot water heating boiler is set to open at 207 kPa, the operating pressure
should not exceed - 138 kPa.
R4B04-03-03-06 Furnace explosions may be caused by: - The accumulation of fuel-air mixture in
the furnace
When preparing to start a steam boiler with a fully modulating firing rate control, set the
manual/automatic switch to _________ and the flame control switch to the __________ position. -
manual, low-fire
Who should verify a steam boiler lockout? - A second qualified operator.
When closing up a boiler, - new handhole and manhole gaskets must be used, to prevent
dangerous blowouts and costly unplanned boiler outages.
Questions with Correct Answers | 100% Pass
Larger capacity, high pressure fuel trains are - more complex
The main burner test firing valve should be opened - before starting the main burner
What is the recommended boiler water pH for wet layup? - 10
R4B04-03-03-07 Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion. -
purge
R4B04-05-02-01 When cooling down a steam boiler that has been taken out of service, a vent valve on a
steam drum should be opened to: - Prevent a vacuum from forming in the boiler
How often should operator rounds be performed? - 1 to 3 times per shift
What should Power Engineers carry at all times? - a flashlight
When a power failure occurs, control valves - go to a fail-safe position.
When a combustion air opening is equipped with dampers, the dampers must be - interlocked
with the burner, and fully open before starting the boiler.
New boilers require a _____________ and a _____________ dry-out before entering operation. -
boil-out, refractory
R4B04-03-03-11 If a steam boiler is in service and no water level shows in the gauge glass, the first
action would be to: - determine whether the gauge glass is completely full or completely empty.
, Because natural gas is colourless and odourless, ___________ is added to the gas so that it is easier to
detect a leak. - mercaptan
In a multiple boiler high pressure steam plant, when starting an entire system from cold - The
entire system warms and pressurizes as one boiler warms, except for the boilers being left off line.
On a semi-automatic ignition system, the switch on the supervised cock - keeps the boiler from
pre-purging if the main test firing valve is open.
Which code contains information on safety valves for high pressure steam boilers? - ASME
Section I
R4B04-01-02-04 New refractory in a boiler must be thoroughly dried on low fire - to dry the
refractory slowly and keep it from cracking.
What is the recommended test frequency for flame safeguard devices? - weekly
If the safety relief valve of a hot water heating boiler is set to open at 207 kPa, the operating pressure
should not exceed - 138 kPa.
R4B04-03-03-06 Furnace explosions may be caused by: - The accumulation of fuel-air mixture in
the furnace
When preparing to start a steam boiler with a fully modulating firing rate control, set the
manual/automatic switch to _________ and the flame control switch to the __________ position. -
manual, low-fire
Who should verify a steam boiler lockout? - A second qualified operator.
When closing up a boiler, - new handhole and manhole gaskets must be used, to prevent
dangerous blowouts and costly unplanned boiler outages.
