ABE (CHAP04Psychrometry)

A psychrometer measures the ____ of the air.

• dry and wet bulb temperature

• dry bulb temperature and relative humidity

• wet bulb temperature and relative humidity

• None of the above

Temperature of the air as measured using ordinary thermometer.

• Wet bulb temperature

• Dry bulb temperature

• Dewpoint temperature

• None of the above

Temperature of the as measured using ordinary thermometer whose glass bulb is covered with wet cloth of gauge.

• Wet bulb temperature

• Dry bulb temperature

• Dewpoint temperature

• None of the above

Temperature of the air at which the moisture condenses on the surface at which condensation occurs at constant humidity ratio and constant atmospheric pressure.

• Wet bulb temperature

• Dry bulb temperature

• Dewpoint temperature

• None of the above

It is the ratio of the partial pressure of water vapor in the atmosphere to the pressure that saturated water vapor exerts at the temperature of the air.

• Humidity ratio

• Relative Humidity

• Enthalpy

• None of the above

Weight of water vapor contained in the moist air per unit weight of dry air.

• Humidity ratio

• Relative humidity

• Enthalpy

• None of the above

Heat content of the mist air per unit weight of dry air above a certain reference temperature.

• Humidity ratio

• Relative humidity

• Enthalpy

• None of the above

The volume of the moist air that is equal to the reciprocal to the its density.

• Specific volume

• Specific density

• Relative humidity

• None of the above

The amount of moisture in the air that equal to number of particles per 1 pound of water.

• Specific density

• Specific volume

• Grains of moisture

• None of the above

Lines vertically upward from the sole of the psychrometric chart.

• Dew point temperature

• Wet bulb temperature

• Dry bulb temperature

• None of the above