Black Seal- High Pressure || with Error-free Answers.
What safety device cuts off fuel supply in the event of loss of ignition? correct answers Flame
scanner-Fire eye
A flame failure cutout automatically: correct answers Breaks the cycle on a flame-out
Where do you find a cyclone separator? correct answers Steam drum
What chemicals will prevent oxidation of drum and tubes? correct answers Sodium sulfite and
Hydrazine
Failure of what device causes a furnace explosion? correct answers Fan failure or purge failure
What would one standard atmosphere at 14.7 psi be in feet of water? correct answers 34 feet
How often do you test a low water cut-off? correct answers Daily, by blowing down the column
A flue gas analysis is done to: correct answers Determine combustion efficiency
How often are boilers inspected? correct answers Annually
What auxiliary would improve boiler efficiency? correct answers Economizer
If a baffle breaks, what happens? correct answers Increase of furnace gases & stack temperature
Why are baffles used in steam drums of water tube boilers? correct answers To direct the flow of
gasses
, What device measures draft? correct answers Manometer
A manometer is calibrated in: correct answers Inches of water
What type of cycle is the simple power plant cycle? correct answers The Rankine Cycle
What is required for complete combustion? correct answers Mixture, atomization, temperature,
time (MATT)
The main purpose of testing a safety valve is to: correct answers Make sure valve operates freely
When testing a safety valve by hand, you must: correct answers Have at least 75% of popping
pressure
What is the absolute pressure of a 180 psi boiler? correct answers 194.7psia (add 14.7)
How many furnace volume air changes should occur during purge? correct answers 4
What valve must be between boiler and safety valve? correct answers No valve
What is total force of Safety valve with a 2 1/2 inch disc at 30 pounds pressure? correct answers
2.5 × 2.5 × .7854 × 30= 147psi
How do you clean fire tube boilers? correct answers Wire brushes
Water hammer can cause: correct answers Steam pipe failure
What safety device cuts off fuel supply in the event of loss of ignition? correct answers Flame
scanner-Fire eye
A flame failure cutout automatically: correct answers Breaks the cycle on a flame-out
Where do you find a cyclone separator? correct answers Steam drum
What chemicals will prevent oxidation of drum and tubes? correct answers Sodium sulfite and
Hydrazine
Failure of what device causes a furnace explosion? correct answers Fan failure or purge failure
What would one standard atmosphere at 14.7 psi be in feet of water? correct answers 34 feet
How often do you test a low water cut-off? correct answers Daily, by blowing down the column
A flue gas analysis is done to: correct answers Determine combustion efficiency
How often are boilers inspected? correct answers Annually
What auxiliary would improve boiler efficiency? correct answers Economizer
If a baffle breaks, what happens? correct answers Increase of furnace gases & stack temperature
Why are baffles used in steam drums of water tube boilers? correct answers To direct the flow of
gasses
, What device measures draft? correct answers Manometer
A manometer is calibrated in: correct answers Inches of water
What type of cycle is the simple power plant cycle? correct answers The Rankine Cycle
What is required for complete combustion? correct answers Mixture, atomization, temperature,
time (MATT)
The main purpose of testing a safety valve is to: correct answers Make sure valve operates freely
When testing a safety valve by hand, you must: correct answers Have at least 75% of popping
pressure
What is the absolute pressure of a 180 psi boiler? correct answers 194.7psia (add 14.7)
How many furnace volume air changes should occur during purge? correct answers 4
What valve must be between boiler and safety valve? correct answers No valve
What is total force of Safety valve with a 2 1/2 inch disc at 30 pounds pressure? correct answers
2.5 × 2.5 × .7854 × 30= 147psi
How do you clean fire tube boilers? correct answers Wire brushes
Water hammer can cause: correct answers Steam pipe failure
