Which of the conditions listed will provide...
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Question 1 of 27070
5eccefa0bacbc34ba4d46d3e
Which of the conditions listed will provide 'blow down' after the safety valve has lifted?
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A
The valve is held open by a pressure pilot line.
B
Once the valve has opened, the existing steam pressure acts on an enlarged area creating an opening force greater than that which opened the valve.
C
Once the valve lifts, the set opening pressure changes.
D
The safety valve opens gradually but with decreasing lift during the blow down period.
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Question 1 of 27070
5eccefa0bacbc34ba4d46d3e
Q
Which of the conditions listed will provide 'blow down' after the safety valve has lifted?
A
The valve is held open by a pressure pilot line.
B
Once the valve has opened, the existing steam pressure acts on an enlarged area creating an opening force greater than that which opened the valve.
C
Once the valve lifts, the set opening pressure changes.
D
The safety valve opens gradually but with decreasing lift during the blow down period.
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