单选题A combustible gas indicator is used to determine （）.Aif there is sufficient oxygen to support lifeBthe toxicity of flammable gases or vaporsCthe amount ofCO2 present in flue gasDthe presence of flammable gases or vapors in the air
单选题
A combustible gas indicator is used to determine （）.
A
if there is sufficient oxygen to support life
B
the toxicity of flammable gases or vapors
C
the amount of CO2 present in flue gas
D
the presence of flammable gases or vapors in the air
参考解析
解析：
暂无解析
相关考题：
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine The device most commonly used is aA.tachometerB.pyrometerC.dynamometerD.calorimeter
Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an ____.A.Orsat apparatusB.flame safety lampC.Halide torchD.combustible gas indicator
An inert gas system on a tanker should be used to ______.A.prevent the generation of flammable or combustible gas in tanksB.blow out cargo lines to prevent the build up of gas concentrationsC.dilute tank atmospheres to keep gas concentrations below the lower explosive limitD.prevent fires in the pumproom by continually displacing flammable vapors
What is the best instrument for establishing a safe working area before welding in a confined space?A.An oxygen indicatorB.A combustible gas indicatorC.A combination combustible gas and oxygen indicatorD.A flame safety lamp
What is used to test a tank for oxygen content ________．A.Combustible gas indicatorB.Vapor indicatorC.Atmosphere analyzer kitD.None of the above
You are testing a tank that contained gasoline by using a combustible gas indicator．Under testing，the tank sample caused the needle to move rapidly to 100 on the dial then fall to zero．What is the concentration of flammable gas ________．A.Less than the flammable rangeB.Within the flammable rangeC.Over the flammable rangeD.The explosimeter is defective and giving a false reading
An oxygen indicator can be used to determine if there is ______.A.sufficient oxygen in a compartment to support lifeB.combustible gases presentC.hyfrogen gases presentD.All of the above
Combustible gas indicators measure the presence of combustible gas as a percentage of the____.A.flash pointB.upper explosive limitC.lower explosive limitD.fire point
Deficient oxygen content inside a chain locker can be detected with ______.A.litmus paperB.a combustible gas indicatorC.an oxygen breathing apparatusD.an oxygen indicator
单选题What is NOT a responsibility of the tankerman in charge of loading an unmanned tank barge? （）AEnforcement of smoking restrictionsBRestricting vessels from coming alongside the bargeCInsuring that a combustible gas indicator is aboardDProtecting cargo hose with chafing gear
单选题Diesel engine exhaust gas temperatures can be used to determine individual cylinder （）.AperformanceBhorsepower outputCfuel consumptionDscavenge effect
单选题Diesel engine cylinder head test cocks are used to（）Acheck cylinder lubrication prior to starting engineBconnect exhaust gas analyzers to determine engine efficiencyCpressure test cylinder heads to check for leaksDremove moisture accumulations from cylinder prior to starting
单选题A salinity indicator is used to determine the （）.Acause of salt contaminationBlocation of salt water contaminationCchemical makeup of feed-waterDlevel of alkalinity in condensate
单选题A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases? （）AIn the lower level of the pumproomBIn the middle level of the pumproomCIn the upper level of the pumproomDOn the deck outside the pumproom
单选题Deficient oxygen content inside a chain locker can be detected with（）.Alitmus paperBa combustible gas indicatorCan oxygen breathing apparatusDan oxygen indicator
单选题By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）AtachometerBpyrometerCdynamometerDcalorimeter
单选题Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an（）.AOrsat apparatusBflame safety lampCHalide torchDcombustible gas indicator
单选题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.ApurifiesBcombinationsCconcentrationsDfilters
单选题Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.Aflash pointBupper explosive limitClower explosive limitDfire point
单选题A diesel engine crankcase ventilation system （）Aprevents spark generationBremoves combustible gasesCdetermines the level of combustible gasesDprovides inert gas generation in crankcase
单选题Diesel engine cylinder head test cocks are used to （）Acheck cylinder lubricationBconnect the pressure indicator pressureCtest cylinder headsDconnect the exhaust gas pyrometers
单选题Before entering a tank，always check the vapor content（）a combustible gas indicator.AwithBbyCofDfor
单选题By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engineThe device most commonly used is a（）.AtachometerBpyrometerCdynamometerDcalorimeter
单选题An oxygen indicator can be used to determine if there is（）.Asufficient oxygen in a compartment to support lifeBcombustible gases presentChydrogen gases presentDAll of the above
单选题An oxygen indicator can be used to determine if there is（）.Asufficient oxygen in a compartment to support lifeBcombustible gases presentChydrogen gas presentDAll of the above
单选题An inert gas system on a tanker should be used to（）.Aprevent the generation of flammable or combustible gas in tanksBblow out cargo lines to prevent the build up of gas concentrationsCdilute tank atmospheres to keep gas concentrations below the lower explosive limitDprevent fires in the pumproom by continually displacing flammable vapors
单选题An inert gas system on a tanker should be used to（）.Aprevent the generation of flammable or combustible gas in tanksBblow out cargo lines to prevent gas concentrationsCdilute tank atmospheres to keep gas concentrations below the lower explosive limitDprevent fires in the pumproom by continually displacing flammable vapors