Quiz
Unit 35 - Quiz
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Fragen in diesem Quiz (13)
1What is the relative humidity if the dry-bulb temperature is 100ºF and the wet-bulb temperature is 65ºF?
- A13%
- B33%
- C43%
- D63%
2The wet-bulb depression is __________.
- Athe difference between the dry-bulb and wet-bulb temperatures.
- Bthe same as the wet-bulb temperatures.
- Cthe same as the dry-bulb temperatures.
- Dwhen the air is saturated with moisture.
3Comfort can be described as the gentle balance between __________.
- Aair cleanliness, air movement, temperature, and humidity.
- Bair velocity, air cleanliness, humidity, and air movement.
- Cair speed, air velocity, temperature, and humidity.
- Dacceleration, air cleanliness, filtration, and humidity.
4Infiltration is the term used when referring to the air entering a structure _________.
- Athrough an air make-up unit
- Baround doors and windows
- Cthrough ventilation
- Dbecause of street traffic
5A fresh air intake is necessary to keep the indoor air from becoming _________.
- Atoo humid
- Bsuperheated
- Coxygen starved and stagnant
- Dtoo dry
6The dry-bulb temperature is the __________.
- Asame as the wet-bulb temperature
- Btotal of the sensible and latent heat
- Csensible heat level of the air
- Dsensible heat less the humidity
7If the dry-bulb temperature is 93ºF and the wet-bulb temperature is 60ºF, what is the specific volume of the air?
- A14.0 ft^3/lb
- B14.0 lb/ft^3
- C10 lb/ft^3
- D10 ft^3/lb
8The human body is comfortable when the heat produced in the body is equal to the heat lost to the surroundings.
- ARichtig
- BFalsch
9The rate at which water will evaporate from the wick on the wet-bulb thermometer is determined by the moisture content of the surrounding air.
- ARichtig
- BFalsch
10Introduction of forced ventilation in the winter heating season helps to raise the humidity level.
- ARichtig
- BFalsch
11When the dry-bulb and wet-bulb temperatures are the same, the relative humidity of the air is [blank_start]100%[blank_end].
- A100%
12Air consists of approximately [blank_start]21%[blank_end] of oxygen.
- A21%
13[blank_start]7,000[blank_end] grains of moisture equals one pound of water.
- A7,000
Informationen
- Beschreibung
- Unit 35 Comfort and Psychrometrics
- Autor
- Neil Revollo
- Sprache
- English
- Aufrufe
- 1.335
- Verlauf
- Erstellt am 27 Feb 2016 · aktualisiert am 18 Jan 2017
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