Engine : General Subjects - 1918/1128 |
---|
« Previous Question |
In the illustrated self-contained, internal-pilot, piston-operated steam pressure-reducing valve, what statement is true concerning the pilot and main valves? Illustration GS-0044 |
A) The pilot valve is upward seating and the main valve is downward seating. |
B) The pilot valve is downward seating and the main valve is upward seating. |
C) The pilot valve is downward seating and the main valve is downward seating. |
D) The pilot valve is upward seating and the main valve is upward seating. |
loading answer...
Illustration GS-0044Comments |
---|
There are no comments for this question. |