If you are unable to stop a diesel engine by any other means,you should ______.
A.Discharge a CO2 extinguisher in the air inlet
B.Pull off the distributor cap
C.Secure the jacket water
D.Secure the starting air supply valve
第1题
A.Crow bar
B.Device to force a water tight door against the frame
C.Heavy steel beam
D.Wedge
第2题
A.meridian angle
B.altitude
C.right ascension
D.azimuth angle
第3题
A.Globe valve
B.Butterfly valve
C.Gate valve
D.Packless valve
第4题
A.Increase holding power
B.Decrease holding power
C.Make penetration more complete
D.Not effect holding power
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