更多"The minimum amount of oxygen requir"的相关试题:
[单项选择]The minimum fuel oil delivery pressure required for diesel engine injection depends primarily on the（）
A. degree of cylinder air turbulence
B. firing pressure in the engine
C. quality of fuel to be injected
D. duration of the ignition delay period
[单项选择]How many hours of rest is the minimum required in a normal day?（）
A. 14 hours
B. 10 hours
C. 6 hours
D. It does not matter as long as my overtime is paid for
[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]Oxygen corrosion in auxiliary boilers is prevented by treating the boiler feed tank with either sodium （）
A. sulfite or hydrazine
B. sulfite or hygroscopic sulfite
C. bromide or hydrazine
D. bromide or hygroscopic sulfite
[单项选择]Deficient oxygen content inside a chain locker can be detected with（）.
A. litmus paper
B. a combustible gas indicator
C. an oxygen breathing apparatus
D. an oxygen indicator
[单项选择]An oxygen indicator will detect （）.
A. concentrations of explosive gas
B. an oxygen deficiency in a space
C. the presence of harmful amounts of carbon monoxide
D. All of the above
[单项选择]When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，the atmosphere must be sampled（）.
A. one meter from the tank bottom and one meter below the tank top
B. one half the ullage of the tank and one meter below the tank top
C. one half the ullage of the tank and one meter above the tank bottom
D. at three meter intervals from the tank top
[单项选择]When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it（）.
A. one meter from the tank bottom and one meter below the tank top
B. one half the ullage of the tank and one meter below the tank top
C. one half the ullage of the tank and one meter above the tank bottom
D. at three meter intervals from the tank top to the bottom
[单项选择]If the meter needle of the oxygen indicator cannot be set to zero，what should be done? （）
A. Replace the batteries
B. Check the sampling tube for blockage
C. Adjust the final reading by the amount the needle is displaced from zero
D. Replace the platinum filament
[单项选择]After each reading of an oxygen indicator, the instrument should be purged with（）.
A. CO2
B. fresh air
C. the tested compartment's air
D. water
[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]After each reading of an oxygen indicator，the instrument should be purged with（）.
A. CO2
B. fresh air
C. the tested compartment's air
D. water
[单项选择]While testing a cargo tank，your oxygen indicator reads 25% oxygen in the tank. You would then （）.
A. enter the tank safely
B. suspect the accuracy of the reading
C. ventilate the tank
D. test for nitrogen
[单项选择]Should a person be overcome due to lack of oxygen and high concentration of refrigerant, treat with（）.
A. fresh water
B. fresh air
C. salt water
D. artificial respiration
