If the steam whistle shown in the illustration produces a poor, rattling tone when blown, the probable cause is a/an __________. See illustration GS-0099.
A
insufficient steam pressure
B
defective pilot valve
C
excessive back cover tightness
D
a loose back cover
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Question 1 / 205eccef9cbacbc34ba4d45ae1
Question 1 of 205eccef9cbacbc34ba4d45ae1
If the steam whistle shown in the illustration produces a poor, rattling tone when blown, the probable cause is a/an __________. See illustration GS-0099.
If the steam whistle shown in the illustration produces a poor, rattling tone when blown, the probable cause is a/an __________. See illustration GS-0099.