更多"A combustible gas indicator is used"的相关试题:
[单项选择]A combustible gas indicator meter is calibrated to read the percentage of（）.
A. vapor to oxygen
B. the flammable limit concentration
C. the autoignition concentration
D. the lower explosive limit concentration
[单项选择]A salinity indicator is used to determine the （）.
A. cause of salt contamination
B. location of salt water contamination
C. chemical makeup of feed-water
D. level of alkalinity in condensate
[单项选择]A combination combustible gas and oxygen indicator is an instrument that measures the（） of both combustible gas and oxygen; each is indicated on a separate meter.
A. purifies
B. combinations
C. concentrations
D. filters
[单项选择]An oxygen indicator can be used to determine if there is（）.
A. sufficient oxygen in a compartment to support life
B. combustible gases present
C. hydrogen gases present
D. All of the above
[单项选择]Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
A. flash point
B. upper explosive limit
C. lower explosive limit
D. fire point
[单项选择]Combustible gas indicators operate by drawing an air sample into the instrument（）.
A. over an electrically heated platinum filament
B. where it is mixed with nitrogen
C. where it is ignited by a sparking device
D. where its specific gravity is measured
[单项选择]GM cannot be used as an indicator of stability at all angles of inclination because（）.
A. M is not fixed at large angle
B. there is no M at large angles
C. G is not fixed at large angles
D. there is no G at large angles
[单项选择]What is used as an indicator of initial stability? （）
A. GM
B. KG
C. KM
D. GZ
[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]Which method is used to supply inert gas from a flue gas system to the cargo tanks?（）
A. Exhaust gas pressure from the stack
B. High capacity fan
C. Inert gas compressor
D. Natural aspiration
[单项选择]Which procedure(s) shall be used to determine risk of collision? （）
A. Watching the compass bearing of an approaching vessel
B. Systematic observation of objects detected by radar
C. Long-range radar scanning
D. All of the above
[单项选择]The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
A. filter
B. cooler
C. scrubber
D. purifier
[单项选择]Litmus paste is used in order to determine（）.
A. innage
B. thievage
C. ullage
D. the tank's datum point
