航海英语救生作业章节练习(2019.04.26)

单项选择题
Prior to boarding from a vessel，a davit-launched liferaft should be well ventilated of excess（）.
A.hydrocarbon gas
B.carbon monoxide gas
C.carbon dioxide gas
D.freon gas
单项选择题
Inflatable liferafts are provided with（）.
A.a Very pistol
B.a towing connection
C.a portable radio
D.canned milk
单项选择题
A chock（）.
A.is a deck fitting used to shackle gear to the deck
B.permits easy jettisoning of deck cargo in an emergency
C.prevents stress concentration in the bulwark
D.provides openings through the bulwark for mooring lines
单项选择题
The inside light in an inflatable liferaft is turned on（）.
A.automatically as the liferaft inflates
B.with a switch near the boarding handle
C.at night because the light has a photosensitive switch
D.by screwing the bulb in after the raft is inflated
单项选择题
An inflatable liferaft can be launched by（）.
A.the float-free method ONLY
B.breaking the weak link on the painter
C.throwing the entire container overboard and then pulling on the operating cord to inflate the raft
D.removing the securing straps
单项选择题
The worst atmospheric condition for dispersion of H2S is（）.
A.heavy rain
B.gusty winds with rain
C.nearly calm，clear nights or early morning
D.full sun with high winds
单项选择题
An inflatable liferaft is hand-launched by（）.
A.pulling a cord
B.cutting the wire restraining bands
C.removing the rubber packing strip
D.throwing the entire container overboard
单项选择题
A liferaft which has inflated bottom-up on the water（）.
A.should be righted by standing on the carbon dioxide cylinder，holding the righting straps，and leaning backwards
B.should be righted by standing on the life line，holding the righting straps，and leaning backwards
C.will right itself when the canopy tubes inflate
D.must be cleared of the buoyant equipment before it will right itself
单项选择题
After you have thrown the liferaft and stowage container into the water，you inflate the liferaft by（）.
A.pulling on the painter line
B.forcing open the container which operates the CO₂
C.hitting the hydrostatic release
D.using the hand pump provided
单项选择题
If the liferaft capsizes，all personnel should leave the raft and（）.
A.climb onto the bottom
B.swim away from the raft
C.right the raft using the righting strap
D.inflate the righting bag