Air temperature varies with ______.A.the altitude above sea levelB.the season of the yearC.the latitude or distance from the equatorD.All of the above
Air temperature varies with ______.
A.the altitude above sea level
B.the season of the year
C.the latitude or distance from the equator
D.All of the above
相关考题：
Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?A.Cooling the air to a temperature just above dew pointB.Heating the air to a point at which moisture will boil off ,then re-cooling itC.Cooling the air to a point below dew point, then reheating itD.Heating the air and then cooling it to a point below dew point
If the jacket water temperature rises rapidly above normal in a diesel engine, you should firstA.place standby cooler in operationB.reduce engine loadC.check thermostatic valveD.clean sea water strainer
Sweat damage will occur in a cargo hold containing machinery parts when ______.A.the outside air is colder than the cargo．B.the air temperature of the hold is higher than the outside air temperature．C.the dew point of the hold is higher than the temperature of the cargo．D.the dew point of the outside air is lower than the temperature of the cargo
The error in the measurement of the altitude of a celestial body，caused by refraction，increases as the ______.A.horizontal parallax decreasesB.observer's height above sea level increasesC.humidity of the atmosphere decreasesD.altitude of the body decreases
Sweat damage in a hatch full of canned goods in cartons will occur when the ______．A.Air temperature is higher than the temperature of the cargoB.Air temperature is lower than the temperature of the cargoC.Dew point is higher than the temperature of the cargoD.Dew point is lower than the temperature of the cargo
Should the steel be loaded in conditions where the ambient temperature is lower than might be encountered later on in the voyage，______．A.the hold should be ventilatedB.the hold should not be ventilatedC.the hold should be half-ventilatedD.hot air should be introduced into the hold
______ is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature．A.MIXING FOGB.ADVECTION FOGC.RADIATION FOGD.ARCTIC SEA SMOKE
单选题An emergency sea anchor may be constructed by using（）.Aa boat bucketBan air tank filled with waterCan oar and canvas weighted downDAll of the above
单选题Air temperature varies with（）.Athe altitude above sea levelBthe season of the yearCthe latitude or distance from the equatorDAll of the above
单选题The dew point of air is reached when the wet bulb temperature is （）.ATwice the dry bulb temperatureB10℃ above the dry bulb temperatureC5℃ above the dry bulb temperatureDEqual to the dry bulb temperature
单选题If the jacket water temperature of an operating diesel engine suddenly rises above normal, the cause can be attributed to （）.Aan overfilled expansion tankBexcess chromate treatment of the jacket waterCa clogged raw water sea suctionDcavitation erosion of the heat exchanger tubes
单选题In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）Afuel must be preheatedBintake air should be preheatedClube oil outlet temperature should be increased 20℃ above normalDnone of the above
单选题The error in the measurement of the altitude of a celestial body，caused by refraction，increases as the（）.Ahorizontal parallax decreasesBobserver's height above sea level increasesChumidity of the atmosphere decreasesDaltitude of the body decreases
单选题The purpose of the “set” hand on an aneroid barometer is to（）.Aadjust the barometerBindicate any change in the reading of the barometerCprovide a correction for height above sea levelDprovide a correction for temperature changes
单选题Sweat damage will occur in a cargo hold containing machinery parts when（）.Athe outside air is colder than the cargoBthe air temperature of the hold is higher than the outside air temperatureCthe dew point of the hold is higher than the temperature of the cargoDthe dew point of the outside air is lower than the temperature of the cargo
单选题An emergence sea anchor may be constructed by type of extinguisher?（）.Aa boat bucketBan air tank filled with waterCan oar and canvas weighted downDAll of the above
单选题Which of the following problems can cause an above normal air temperature to develop in the intake manifold of a turbocharged and after-cooled diesel engine?（）AFaulty turbocharger turbine diffuser ringBFaulty turbocharger compressor ringCInsufficient cooling water flowDClogged air intake filters
单选题Which condition is necessary for a substance to burn?（）AThe temperature of the substance must be equal to or above its fire pointBThe air must contain oxygen in sufficient quantityCThe mixture of vapors with air must be within the explosive rangeDAll of the above
单选题A number of biological sewage treatment plants are in use at sea but nearly all work on what is called the extended aeration processBasically the consists of oxygenating the liquor by bubbling air through itAccording to the above two sentences, the word "this" means （）.Aa sewage treatment plantBthe extended aeration processCthe liquorDthe bubbling air
单选题Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle turbo-charged diesel engine?（）AClogged air intake faltersBPiston blow-byCA defective after-coolerDFaulty exhaust valves
单选题（）is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature.AMIXING FOGBADVECTION FOGCRADIATION FOGDARCTIC SEA SMOKE
单选题If the jacket water temperature rises rapidly above normal in a diesel engine, you should FIRST （）Aplace standby cooler in operationBreduce engine loadCcheck thermostatic valveDclean sea water strainer
单选题Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?（）ACooling the air to a temperature just above dew pointBHeating the air to a point at which moisture will boil off ,then re-cooling itCCooling the air to a point below dew point, then reheating itDHeating the air and then cooling it to a point below dew point
单选题A space should be ventilated when（）.AThe cargo's temperature is colder than the dew point of the air in the spaceBThe cargo's temperature is warmer than the dew point of the air in the spaceCThe dew point of the air in the space is lower than the dew point of the outside airDAll of the above
单选题Apparent altitude is sextant altitude corrected for（）.Aparallax and personal errorBinaccuracies in the reading and reference levelCvisibility and magnitudeDAll of the above are correct
单选题It can be concluded from information contained in the passage that the average temperature at an altitude of 1 kilometer above the Earth is about _____.A15℃B9℃C2.5℃D-12℃