The pressure of pilot air is usually （

1、Air conditioning is the process of tre

Air conditioning is the process of treating air to control （） its temperature, humidity, cleanliness and distribution to meet the comfort requ...

2、The pressure head of a pump is given i

The pressure head of a pump is given in the unit of （）.AkgBMPaCmeter fluid columnDNone of the above is true

3、The scavenge air receiver is of a simp

The scavenge air receiver is of a simplified and modular design with integral non-return flaps, hanging cooler and two auxiliary air blowers（）AdozensBparcelsCbundlesDgallo

4、The effective temperature of air is d

The effective temperature of air is dependent upon（）Ⅰ.relative humidityⅡ.air velocityAⅠonlyBⅡonlyCBoth Ⅰand ⅡDNeitherⅠnor Ⅱ

5、The sensible heat of air is dependent

The sensible heat of air is dependent upon the （）.Adry bulb temperatureBwet bulb temperatureCsaturation temperatureDwater vapor superheat

6、The air filter is fixed in the （） of a

The air filter is fixed in the （） of an air compressor.Ainlet pipeBoutlet pipeCinter coolerDafter cooler