网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
单选题
Which instrument is used to measure the relative humidity of air?()
A
Hydrometer
B
Hygrometer
C
Spectrometer
D
Barometer
参考答案
参考解析
解析:
暂无解析
更多 “单选题Which instrument is used to measure the relative humidity of air?()A HydrometerB HygrometerC SpectrometerD Barometer” 相关考题
考题
If air at 95°Cdry bulb temperature and 50%relative humidity is conditioned to 75°Cdry bulb temperature and 50%relative humidity, it is an example of()
A.cooling onlyB.cooling and humidifyingC.cooling and dehumidifyingD.adiabatic(绝热的)cooling
考题
Which of the listed devices is used to measure pressure and convert it to an electrical signal?A.TransducerB.ReducerC.TransformerD.Rectifier
考题
A sling psychrometer is a(n) ______.A.type of cargo gearB.instrument used in celestial navigationC.instrument used to measure relative humidityD.instrument used to measure specific gravity
考题
A hygrometer is device used for determining ______.A.the absolute temperatureB.atmospheric pressureC.wind velocityD.relative humidity
考题
An aneroid barometer is an instrument ______.A.used to measure the speed of windB.in which the pressure of air is measuredC.that tells which direction a storm is coming fromD.used to measure the height of waves
考题
As the temperature for an air mass decreases, the ______.A.absolute humidity increasesB.relative humidity increasesC.specific humidity increasesD.dew point rises
考题
As the temperature for a given mass of air increases, the ______.A.dew point increasesB.dew point decreasesC.relative humidity increasesD.relative humidity decreases
考题
单选题In order to accurately measure very low pressures, which of the instruments listed should be used?()A
Compound gageB
Bonrdon tubeC
ManometerD
Deadweight gage
考题
单选题A compound gage is used to measure ().A
temperature and pressureB
humidity and temperatureC
pressure and vacuumD
pressure and humidity
考题
单选题Which of the listed devices is used to measure pressure and convert it to an electrical signal?()A
TransducerB
ReducerC
TransformerD
Rectifier
考题
单选题When air is at its dew point it is at its()A
lowest absolute humidityB
lowest relative humidityC
highest absolute humidityD
highest relative humidity
考题
单选题An aneroid barometer is an instrument().A
used to measure the speed of windB
in which the pressure of the air is measuredC
that tells which direction a storm is coming fromD
used to measure the height of waves
考题
单选题Which instrument is used to predict the approach of a low pressure system().A
AnemometerB
FathometerC
BarometerD
Thermometer
考题
单选题Which of the following tools is BEST used to measure voltage and amperage from a power source?()A
Loopback PlugB
MultimeterC
Power Supply TesterD
Extension Magnet
考题
单选题A pyrometer is an instrument commonly used to measure()A
cylinder pressureB
flame intensityC
exhaust gas temperatureD
crankshaft axial alignment
考题
单选题Which instrument is used to measure the relative humidity of air?()A
HydrometerB
HygrometerC
SpectrometerD
Barometer
考题
单选题A hand held instrument used to measure distances between objects and the ship is a().A
vernierB
psychrometerC
hygrometerD
stadimeter
考题
单选题If air at 95℃ dry bulb temperature and 50% relative humidity is conditioned to 75℃ dry bulb temperature and 50% relative humidity, it is an example of ().A
cooling onlyB
cooling and humidifyingC
cooling and dehumidifyingD
adiabatic cooling
考题
单选题A cargo hold has been determined to have a relative humidity of 80% and a dry bulb temperature of 80 ℃ and a dry bulb temperature of 85℃.When the hold is sealed and the dry bulb temperature decreases, the relative humidity in the space will ()A
decreaseB
increaseC
decrease to zeroD
remain unchanged
考题
单选题When comparing the air with 50% of relative humidity with the air with 100% of relative humidity, which one will hold more water?()A
the formerB
the latterC
not for sureD
same each other
考题
单选题The most common instrument used to measure diesel engine exhaust pressure is the ()A
pyrometerB
bourdon gaugeC
pneumercatorD
manometer
考题
单选题A lower thermostatic temperature setting will provide a desired degree of comfort in a room where ()A
low relative humidity is maintainedB
triple banded squirrel cage fans are usedC
air circulation is a maximumD
high relative humidity is maintained
考题
单选题A sling psychrometer is a(n)().A
type of cargo gearB
instrument used in celestial navigationC
instrument used to measure relative humidityD
instrument used to measure specific gravity
考题
单选题An instrument that maintains a continuous record of humidity changes is called a().A
thermometerB
barometerC
hygrographD
thermograph
考题
单选题The effective temperature of air is dependent upon() Ⅰ.relative humidity Ⅱ.air velocityA
ⅠonlyB
ⅡonlyC
Both Ⅰand ⅡD
NeitherⅠnor Ⅱ
热门标签
最新试卷