Which of the following statements best represents how the start air valve, shown in the illustration, operates to admit starting air to the main engine cylinder? See illustration MO-0054.
A
The valve spring exerts downward force on the valve spindle.
B
Air pressure from the starting air inlet is applied to the top of the starting valve piston.
C
Control air pressure is applied to the top of the starting valve piston.
D
The downward intake stroke of the main engine cylinder draws the starting valve open.
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Question 1 / 205eccefa3bacbc34ba4d47d59
Question 1 of 205eccefa3bacbc34ba4d47d59
Which of the following statements best represents how the start air valve, shown in the illustration, operates to admit starting air to the main engine cylinder? See illustration MO-0054.
Which of the following statements best represents how the start air valve, shown in the illustration, operates to admit starting air to the main engine cylinder? See illustration MO-0054.