试题预览
1
单选题
1分
- A. fore and aft
- B. ahead or astern
- C. speed or direction
- D. up or down
2
单选题
1分
- A.plugging all scuppers and drains
- B.thoroughly draining all bunkering hoses
- C.regularly emptying all drip pans
- D.placing floating booms around the ship
3
单选题
1分
- A. to reduce heat stress
- B. to reduce low temperature corrosion
- C. to improve firing and starting performance
- D. for fuel saving
4
单选题
1分
- A.fan damper operation is smooth and operates through the full range of open to close、
- B.fan damper locking pins are free to be removed without significant effort、
- C.fan damper operating handles are free to move without significant effort、
- D.fan damper are properly coated with white paint、
5
单选题
1分
- A.expansion valve
- B.condenser
- C.compressor
- D.evaporator
