Air temperature varies with().
- Athe altitude above sea level
- Bthe season of the year
- Cthe latitude or distance from the equator
- DAll of the above
Air temperature varies with().
1、When compared to air temperature,which
When compared to air temperature,which factor is most useful in predicting fog?()AVapor pressureBDew pointCBarometric pressureDAbsolute humidity
2、The resistance of a conductor varies (
The resistance of a conductor varies ()Adirectly as its length and inversely as its cross-sectional areaBinversely as its length and directly ...
3、A diesel engine exposed to widely vary
A diesel engine exposed to widely varying ambient temperatures should use to a lubricating oil with ()Aa high viscosity indexBa low viscosity indexCneutralize acidsDresist oxidation at high temperature
4、With ducted air conditioning systems,
With ducted air conditioning systems, the modern tendency is to use()Acentral air conditioning systemBhigh velocity systemClow velocity systemDsingle duct system
5、When the air charge contacts with the
When the air charge contacts with the cylinders and pistons and mixes with the residual gases, it will()Aincrease in temperatureBlose its energy partlyCexpand and do workDbegin to be compressed
6、In an engine with air inlet valve and
In an engine with air inlet valve and exhaust valve on its cylinder heads the fresh air will enter into the cylinder () and the gases exh...