A、low compression of the fuel pumps
B、incorrect timing of fuel pumps
C、the starting air valves stuck
D、air-locks in fuel oil pipeline
更多“If the engine does not start on air, it may be due to （）”相关的问题
A、that the fuel valve is open B、if the air supply system is open C、if the water sprinkler system is open D、if the limit switch is on
A、fuel control rack had admitted excessive fuel B、engine speed does not match the fuel rack setting C、engine has failed to reach its firing speed D、starter pinion and ring gear contact is not correct
A、failure of the fuel pumps B、starting air pressure too low C、stop valve in air line closed D、the turning gear still engaged
A、A.low compression B、B.failure of the fuel pump to discharge fuel C、C.incorrect timing of fuel pump D、D.turning gear being still on
A、If the file exists it will be opened for editing. If the file does not exist an error message will be displayed. B、If the file exists it will be opened for editing. If the file does not exist a new file with the name file.out will be created and opened for editing. C、If the file exists an error message will be displayed. If the file does not exist a new file with the name file.out will be created and opened for editing. D、If the file exists the operator will be asked whether to open the file or overwrite the file. If the file does not exist a new file with the name file.out will be created and opened for editing.
A、Master，or person in charge B、Chief Engineer，or engineer in charge if no chief engineer is required C、Senior mechanic，or mechanic on duty if no senior mechanic designated D、Senior electrician，or electrician on duty if no senior electrician designated
A、The PFE floods the packet out of all interfaces. B、The PFE drops the packet and sends a destination unreachable notification back to source device. C、The PFE forwards the packet to the routing engine for furtherprocessing. D、The PFE queues the packet and sends are quest for a layer3 lookup to the routing engine.
A、stop main engine immediately B、ask the captain and the chief engineer’s permission for stopping the engine C、initiatively inquire the bridge for the situation D、stop engine and inform bridge
A、found out B、eliminated C、avoided D、lowered
客服
TOP
查看正确答案
