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名词解释题
临界相对湿度（critical relative humidity，CRH）
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更多 “名词解释题临界相对湿度（critical relative humidity，CRH）” 相关考题
考题
下列有关相对湿度的叙述中，错误的是( )A．水溶性药物迅速增加吸湿量时的相对湿度为临界相对湿度B．非水溶性药物无临界相对湿度C．水溶性药物混合后的临界相对湿度等于各药物临界相对湿度的乘积D．两种水溶性药物混合后的CRH高于其中任何一种药物E．分装散剂时，应控制车间的湿度高于分装物料的CRH
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
关于相对湿度，叙述错误的是A、水溶性药物迅速增加吸湿量时的相对湿度为临界相对湿度B、非水溶性药物无临界相对湿度C、水溶性药物混合后的临界相对湿度等于各药物临界相对湿度的乘积D、两种水溶性药物混合后的临界相对湿度（CRH）高于其中任何一种药物E、分装散剂时，应控制车间的湿度高于分装物料的CRH
考题
Haze is not caused by ______．A.forest firesB.smoke from industrial areasC.dust or sand stormsD.water droplets with the relative humidity more than 95%
考题
A hygrometer is device used for determining ______.A.the absolute temperatureB.atmospheric pressureC.wind velocityD.relative humidity
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
Fog is likely to occur when there is little difference between the dew point and the ______.A.relative humidityB.air temperatureC.barometric pressureD.absolute humidity
考题
蔗糖的临界相对湿度CRH＝84.5%，乳糖的临界相对湿度CRH＝96.9%，蔗糖与乳糖混合物的CRH等于（ ）。A.181.4%
B.96.9%
C.84.5%
D.81.9%
E.12.4%
考题
下面关于临界相对湿度（CRH）的叙述不正确的是（）A、水溶性药物均有稳定的CRHB、药物CRH越大，则越不易吸湿C、CRH越小，则越易吸湿D、药物都具有临界相对湿度E、无相互作用的水溶性混合物的CRH约等于各成分的CRH乘积
考题
多选题关于相对湿度，叙述错误的是（）A水溶性药物迅速增加吸湿量时的相对湿度为临界相对湿度B非水溶性药物无临界相对湿度C水溶性药物混合后的临界相对湿度等于各药物临界相对湿度的乘积D两种水溶性药物混合后的临界相对湿度（CRH）高于其中任何一种药物E分装散剂时，应控制车间的湿度高于分装物料的CRH
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Which instrument is used to measure the relative humidity of air?（）A
HydrometerB
HygrometerC
SpectrometerD
Barometer
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In the doldrums you can expect（）.A
steady, constant windsB
frequent rain showers and thunderstormsC
steep pressure gradientsD
low relative humidity
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MIST is caused by（）.A
forest firesB
smoke from industrial areasC
dust or sand stormsD
water droplets with the relative humidity more than 95%
考题
单选题下面关于临界相对湿度（CRH）的叙述不正确的是（）A
水溶性药物均有稳定的CRHB
药物CRH越大，则越不易吸湿C
CRH越小，则越易吸湿D
药物都具有临界相对湿度E
无相互作用的水溶性混合物的CRH约等于各成分的CRH乘积
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