Which of the following statements concerning...
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Question 1 of 27070
66636ef128f7522a1c52137b
Which of the following statements concerning boiler steam drum surface blow piping is correct?
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A
Usually the surface blow pipe is perforated with holes along its top surface; however, when a scum pan is also employed, the holes are located along the bottom of the pipe surface.
B
The centerline of the pipe is normally situated at a distance from the bottom of the steam drum equal to approximately one fourth the diameter of the drum.
C
To ensure adequate blowdown, the aggregate cross-sectional area of these perforated holes must be equal to approximately twice the cross-sectional area of the pipe.
D
All of the above.
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Question 1 of 27070
66636ef128f7522a1c52137b
Q
Which of the following statements concerning boiler steam drum surface blow piping is correct?
A
Usually the surface blow pipe is perforated with holes along its top surface; however, when a scum pan is also employed, the holes are located along the bottom of the pipe surface.
B
The centerline of the pipe is normally situated at a distance from the bottom of the steam drum equal to approximately one fourth the diameter of the drum.
C
To ensure adequate blowdown, the aggregate cross-sectional area of these perforated holes must be equal to approximately twice the cross-sectional area of the pipe.
D
All of the above.
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