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單項選擇題

When starting an engine, the compressed air enters the cylinder when the corresponding piston is in position of its（）

A.suction stroke
B.compression stroke
C.power stroke
D.exhaust stroke

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單項選擇題

The starting air entering the cylinder begins when the piston（）

A.has nearly come to the TDC
B.has just past the TDC
C.has nearly come to the BDC
D.has just past the BDC

單項選擇題

In the starting system, the automatic valve is controlled by（）, and the cylinder start valves are controlled by（）

A.pilot air；pilot air
B.handle；solenoid
C.handle；pilot air coming through the distributor
D.solenoid；pilot air coming through the distributor

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