Black Seal Test High Pressure Preparation Version 2
Newest With Complete Questions And Correct
Detailed Answers| Brand New Version!
What test is performed on re-tubed (repaired) boiler and what is the
water temp.?
ANSWERS: Hydrostatic test at 70F
T/F: The amount of draft is not affected by the height of the stack.
ANSWERS: False
Under what ASME section is the care and operation of heating boilers?
ANSWERS: Section VI (6)
A aquastat is sensitive to changes in:
ANSWERS: Water temperature
The expansion tank in a hot water system allows for the expansion of:
ANSWERS: Water
,Who can adjust a safety valve?
ANSWERS: Manufacturer Representative
As the water in a hot water system expands:
ANSWERS: The pressure remains constant
A modulating pressuretrol controls:
ANSWERS: The boiler's high and low fire
The pressuretrol:
ANSWERS: Turns the boiler on and off
A modulating pressure control is sensitive to:
ANSWERS: Pressure
A vaporstat is sensitive to:
ANSWERS: Gas Pressure
The low water fuel cut-off should be blown down:
ANSWERS: Daily
,When the vaporstat starts operating, it activates the:
ANSWERS: Fuel line solenoid valve
A low water fuel cutoff:
ANSWERS: Shuts off the fuel supply
If a baffle breaks, what happens?
ANSWERS: Increase of furnace gases & stack temperature
Natural draft is produced by:
ANSWERS: Difference in temperature outside chimney from inside chimney
When would a high suction line be used in a fuel tank?
ANSWERS: When there is sludge or water in the tank
If a draft fan is located between the boiler and chimney, what type of
draft system is it?
ANSWERS: Induced Draft
Smoke indicators are important because:
ANSWERS: Operator cannot view smoking conditions
, The main purpose of testing a safety valve is to:
ANSWERS: Make sure valve operates freely
When is the most positive way of checking the water level in a boiler?
ANSWERS: Try cocks
When testing a safety valve by hand, you must:
ANSWERS: Have at least 75% of popping pressure
What prevents a furnace explosion?
ANSWERS: The purge cycle
What is the most important rule in operating boilers?
ANSWERS: Keep water at proper level
Ignition failure would cause activation of the:
ANSWERS: Purge Cycle
What is the capacity of a safety valve measured in?
ANSWERS: Lbs. of Steam/Hr
Newest With Complete Questions And Correct
Detailed Answers| Brand New Version!
What test is performed on re-tubed (repaired) boiler and what is the
water temp.?
ANSWERS: Hydrostatic test at 70F
T/F: The amount of draft is not affected by the height of the stack.
ANSWERS: False
Under what ASME section is the care and operation of heating boilers?
ANSWERS: Section VI (6)
A aquastat is sensitive to changes in:
ANSWERS: Water temperature
The expansion tank in a hot water system allows for the expansion of:
ANSWERS: Water
,Who can adjust a safety valve?
ANSWERS: Manufacturer Representative
As the water in a hot water system expands:
ANSWERS: The pressure remains constant
A modulating pressuretrol controls:
ANSWERS: The boiler's high and low fire
The pressuretrol:
ANSWERS: Turns the boiler on and off
A modulating pressure control is sensitive to:
ANSWERS: Pressure
A vaporstat is sensitive to:
ANSWERS: Gas Pressure
The low water fuel cut-off should be blown down:
ANSWERS: Daily
,When the vaporstat starts operating, it activates the:
ANSWERS: Fuel line solenoid valve
A low water fuel cutoff:
ANSWERS: Shuts off the fuel supply
If a baffle breaks, what happens?
ANSWERS: Increase of furnace gases & stack temperature
Natural draft is produced by:
ANSWERS: Difference in temperature outside chimney from inside chimney
When would a high suction line be used in a fuel tank?
ANSWERS: When there is sludge or water in the tank
If a draft fan is located between the boiler and chimney, what type of
draft system is it?
ANSWERS: Induced Draft
Smoke indicators are important because:
ANSWERS: Operator cannot view smoking conditions
, The main purpose of testing a safety valve is to:
ANSWERS: Make sure valve operates freely
When is the most positive way of checking the water level in a boiler?
ANSWERS: Try cocks
When testing a safety valve by hand, you must:
ANSWERS: Have at least 75% of popping pressure
What prevents a furnace explosion?
ANSWERS: The purge cycle
What is the most important rule in operating boilers?
ANSWERS: Keep water at proper level
Ignition failure would cause activation of the:
ANSWERS: Purge Cycle
What is the capacity of a safety valve measured in?
ANSWERS: Lbs. of Steam/Hr
