【单选题】
The crank-room cover should not be opened until at least （） minutes after the engine stops.
A、10
B、15
C、20
D、30
查看正确答案A、one B、fifteen C、sixty D、ninety
搜题
更多“The crank-room cover should not be opened until at least （） minutes after the engine stops.”相关的问题
第2题
A、laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places B、measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution C、rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom D、taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation
第3题
A、The pilot room is next to the chart room. B、The pilot room is next to the wheelhouse . C、The pilot room next to the captain’s cabin. D、The pilot room next to the wheelhouse .
第4题
A、fuel oil vapor at the sludge tank vent B、unburned fuel vapors in the scavenge air receiver C、lube oil vapors in the crank case D、lube oil vapors in the engine room
第5题
A、A. The pilot room is next to the chart room. B、B. The pilot room is next to the wheelhouse . C、C. The pilot room is next to the captain’s cabin.
第6题
A、the second engineer had got into the engine room B、the second engineer got into the engine room C、has the second engineer got into the engine room D、did the second engineer get into the engine room
第9题
A、A.Use the C02 system and evacuate the engine room B、B.Use the fire main system and evacuate the engine room C、C.Evacuate the engine room and use the C02 system D、D.Evacuate the engine room and use the fire main system
