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Questions and Answers
Which of the following is the formula to calculate the minimum combined relieving capacity for the steam drum PRVs?
Which of the following is the formula to calculate the minimum combined relieving capacity for the steam drum PRVs?
- Capacity = (70 m2 x 49 kg/h-m2) - (95 m2 x 78 kg/h-m2)
- Capacity = (70 m2 x 49 kg/h) - (95 m2 x 78 kg/h)
- Capacity = (70 m2 x 49 kg/h-m2) + (95 m2 x 78 kg/h-m2) (correct)
- Capacity = (70 m2 x 49 kg/h) + (95 m2 x 78 kg/h)
What is the minimum combined relieving capacity required for the steam drum PRVs?
What is the minimum combined relieving capacity required for the steam drum PRVs?
- 10840 kg/h
- 7410 kg/h
- 9840 kg/h (correct)
- 1000 kg/h
According to PG-68.2, how much of the total required capacity should the pressure relief valves on the boiler have?
According to PG-68.2, how much of the total required capacity should the pressure relief valves on the boiler have?
- At least 50%
- At least 100%
- At least 75% (correct)
- At least 90%
What is the capacity available in the superheater PRV?
What is the capacity available in the superheater PRV?
What is the formula to calculate the minimum capacity required in the steam drum PRVs?
What is the formula to calculate the minimum capacity required in the steam drum PRVs?
What is the minimum required relieving capacity for the steam drum PRVs?
What is the minimum required relieving capacity for the steam drum PRVs?
Are superheaters included in PRV capacity calculations?
Are superheaters included in PRV capacity calculations?
What is the maximum quantity of fuel that can be burned per hour at the time of maximum forcing?
What is the maximum quantity of fuel that can be burned per hour at the time of maximum forcing?
What does the formula CxHxO.75 represent?
What does the formula CxHxO.75 represent?
What does a basic understanding of boiler design help the Power Engineer understand?
What does a basic understanding of boiler design help the Power Engineer understand?
Which term in the ASME BPVC Section I refers to an automatic pressure relieving device actuated by the static pressure upstream of the valve and characterized by full-opening pop action?
Which term in the ASME BPVC Section I refers to an automatic pressure relieving device actuated by the static pressure upstream of the valve and characterized by full-opening pop action?
What is the main heading for PG-67 to PG-73 in ASME BPVC Section I?
What is the main heading for PG-67 to PG-73 in ASME BPVC Section I?
What does the term 'pressure relief valve' replace in the ASME BPVC Section I?
What does the term 'pressure relief valve' replace in the ASME BPVC Section I?
According to PG-67.1, how many pressure relief valves are required for a boiler with 0.47 m^2 of bare tube water-heating surface?
According to PG-67.1, how many pressure relief valves are required for a boiler with 0.47 m^2 of bare tube water-heating surface?
According to PG-67.2, what is the maximum allowable pressure rise for a boiler when the pressure relief valve discharges all the steam that can be generated?
According to PG-67.2, what is the maximum allowable pressure rise for a boiler when the pressure relief valve discharges all the steam that can be generated?
According to PG-68.4, what is the minimum total relieving capacity required for a reheater?
According to PG-68.4, what is the minimum total relieving capacity required for a reheater?
According to the text, the minimum required relieving capacity of the pressure relief valves for all types of boilers shall be based on the capacity of all the fuel burning equipment as limited by other boiler functions. True or False?
According to the text, the minimum required relieving capacity of the pressure relief valves for all types of boilers shall be based on the capacity of all the fuel burning equipment as limited by other boiler functions. True or False?
What is the minimum required relieving capacity for all the PRVs on a gas-fired watertube boiler with 65 m2 of boiler heating surface and 85 m2 of waterwall surface?
What is the minimum required relieving capacity for all the PRVs on a gas-fired watertube boiler with 65 m2 of boiler heating surface and 85 m2 of waterwall surface?
What is the minimum required capacity of a pressure relief valve for a stoker-fired firetube boiler with 62 m2 of heating surface?
What is the minimum required capacity of a pressure relief valve for a stoker-fired firetube boiler with 62 m2 of heating surface?
According to Table A-44, what is the PRV capacity required for each square meter of boiler heating surface in a pulverized fuel-fired watertube boiler?
According to Table A-44, what is the PRV capacity required for each square meter of boiler heating surface in a pulverized fuel-fired watertube boiler?
What is the minimum combined relieving capacity required for the steam drum PRVs in this example?
What is the minimum combined relieving capacity required for the steam drum PRVs in this example?
According to PG-68.2, how much of the total required capacity should the pressure relief valves on the boiler (not including the superheater PRVs) have?
According to PG-68.2, how much of the total required capacity should the pressure relief valves on the boiler (not including the superheater PRVs) have?
What is the capacity available in the superheater PRV in this example?
What is the capacity available in the superheater PRV in this example?
What is the minimum required relieving capacity for the steam drum PRVs in this example?
What is the minimum required relieving capacity for the steam drum PRVs in this example?
Are superheaters included in PRV capacity calculations?
Are superheaters included in PRV capacity calculations?
