更多"Severe exposure to chlorine gas can"的相关试题:
[单项选择]Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.
A. respiratory irritant
B. skin burning agent
C. blood poisoning agent
D. nerve paralyzing irritant
[单项选择]Diesel engine exhaust gas temperatures can be used to determine individual cylinder （）.
A. performance
B. horsepower output
C. fuel consumption
D. scavenge effect
[单项选择]A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.
A. dilution
B. displacement
C. precipitation
D. Either A or B
[单项选择]Keep compartment （） as the gas given off can be dangerous.
A. well ventilated
B. well clean
C. in good order
D. more room
[单项选择]Since accumulations of H2S gas on a ship can be dangerous to personnel，it is important to know that H2S gas is（）.
A. lighter than air
B. heavier than air
C. a yellow gas that is easily recognized
D. mildly toxic
[单项选择]Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.
A. cargo pump failure
B. blower failure
C. deck seal low water level
D. low inert gas temperature
[单项选择]Hot gas defrosting uses the hot gas from （） to defrost the evaporator.
A. starting air bottles
B. diesel engines
C. boilers
D. refrigeration compressors
[单项选择]Gas masks（）.
A. should be worn while fighting a fire
B. can be used in atmospheres deficient in oxygen
C. filter contaminants from air that is to be breathed
D. may be substituted for a self-contained breathing apparatus
[单项选择]During severe storms when survival becomes a major concern，it may become necessary to relieve high anchor tensions on the windward side of the unit by（）.
A. deballasting the rig
B. ballasting the rig
C. paying out cable on the windward side
D. paying out cable on the leeward side
[单项选择]During counterflooding to correct a severe list aggravated by an off-center load，your vessel suddenly takes a list or trim to the opposite side. You should（）.
A. continue counterflooding in the same direction
B. continue counterflooding，but in the opposite direction
C. immediately stop counterflooding
D. deballast from the low side
[单项选择]During counterflooding to correct a severe list or trim aggravated by an off-center load，a ship suddenly takes a list or trim to the opposite side. You should（）.
A. continue counterflooding in the same direction
B. continue counterflooding，but in the opposite direction
C. immediately stop counterflooding
D. deballast from the low side
[单项选择]The diesel engine valve subjected to most severe conditions of service is the （）.
A. cylinder exhaust valve
B. air starting valve
C. air inlet valve
D. cylinder relief valve
[单项选择]If a severe leak develops in the electro-hydraulic steering gear unit is necessary when（）
A. Loss of vessel steering
B. Overheating of the gyrocompass
C. Jamming of the six-way vale
D. Jamming of the follow-up device
[单项选择]Some areas, （） their severe weather conditions, are sparsely populated.
A. due to
B. but for
C. in spite of
D. with regard to
[单项选择]If a vessel takes a sudden severe list or trim from an unknown cause, you should first（）.
A. determine the cause before taking countermeasures
B. assume the shift is due to off-center loading
C. counterflood on the side opposite the list or trim
D. assume the cause is environment forces
