更多"Where a period is fixed during whic"的相关试题:
[单项选择]During fueling operations, which of the listed precautions should be taken when topping off fuel tanks?（）
A. Reduce the pumping rate by closing the deck filling valve
B. Close all overflow valves
C. Place 5 gallon containers under all flange connections in the fuel line
D. Reduce the pumping rate and sound tanks frequently as the level rises
[单项选择]The process during which liquid containing a reasonable amount of sensible heat at a particular pressure immediately changes into steam after admitted to a chamber at a lower pressure is called （）.
A. boiling off
B. flash evaporation
C. condensation
D. none of the above
[单项选择]During which condition should the operator of a pedestal crane shutdown operations?（）
A. Bunkering
B. High winds
C. Potable water spill on deck
[单项选择]Valve overlap is the period during which （）.
A. the inlet valve is open
B. the exhaust valve is open
C. both valves are closed
D. both valves are open
[单项选择]During which of the listed piston stroke of a four-stroke/cycle diesel engine, is the piston moving downward?（）
A. Intake stroke
B. Compression stroke
C. Exhaust stroke
D. Pumping stroke
[单项选择]The period at high or low tide during which there is no change in the height of the water is called the （）.
A. range of the tide
B. plane of the tide
C. stand of the tide
D. reversing of the tide
[单项选择]Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
A. HF
B. VHF
C. MF
D. MF/HF
[单项选择]During loading or discharging，where the delay is due to the Shipowner’s fault，or that of his servants or agents acting within their authority，the time actually delayed is to be（）in calculating lay days.
A. precluded
B. included
C. excluded
D. diluted
[单项选择]During the watch at sea, where situations occur in the machine apace which may affect the speed maneuverability, power supply or other essentials for the safe operation of the ship（）should be informed as soon as possible.
A. the chief engineer
B. the master
C. the bridge
D. the company superintendent
[单项选择]Every lifeboat which is fitted with a fixed（）VHF radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
A. one-way
B. two-way
C. double-effect
D. one-effect
[单项选择]During inspection of the machinery space, which of the following statements points to an unsatisfactory organization of the systematic maintenance?（）
A. missing valve hand wheels
B. dirty tank tops
C. a large number of temporary repairs
D. All of the above
[单项选择]A local wind which occurs during the daytime and is caused by the different rates of warming of land and water is a（）.
A. foehn
B. chinook
C. land breeze
D. sea breeze
[单项选择]Where there are multiple accident victims，which type of injury should be the first to receive emergency treatment?（）
A. Severe shock
B. Eye injuries
C. Burns
D. Major multiple fractures
[单项选择]Which of the following pumps is used where a relatively high pressure and small capacity are required?（）
A. Volute pump
B. Diffuser pump
C. Regenerative pump
D. All of the above
