4673539
Descripción
Test por Neil Revollo, actualizado hace más de 1 año
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Creado por Neil Revollo
hace casi 9 años
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Pregunta 1
Pregunta
What is the relative humidity if the dry-bulb temperature is 100ºF and the wet-bulb temperature is 65ºF?
Respuesta
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13%
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33%
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43%
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63%
Pregunta 2
Pregunta
The wet-bulb depression is __________.
Respuesta
-
the difference between the dry-bulb and wet-bulb temperatures.
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the same as the wet-bulb temperatures.
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the same as the dry-bulb temperatures.
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when the air is saturated with moisture.
Pregunta 3
Pregunta
Comfort can be described as the gentle balance between __________.
Respuesta
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air cleanliness, air movement, temperature, and humidity.
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air velocity, air cleanliness, humidity, and air movement.
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air speed, air velocity, temperature, and humidity.
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acceleration, air cleanliness, filtration, and humidity.
Pregunta 4
Pregunta
Infiltration is the term used when referring to the air entering a structure _________.
Respuesta
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through an air make-up unit
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around doors and windows
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through ventilation
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because of street traffic
Pregunta 5
Pregunta
A fresh air intake is necessary to keep the indoor air from becoming _________.
Respuesta
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too humid
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superheated
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oxygen starved and stagnant
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too dry
Pregunta 6
Pregunta
The dry-bulb temperature is the __________.
Respuesta
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same as the wet-bulb temperature
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total of the sensible and latent heat
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sensible heat level of the air
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sensible heat less the humidity
Pregunta 7
Pregunta
If the dry-bulb temperature is 93ºF and the wet-bulb temperature is 60ºF, what is the specific volume of the air?
Respuesta
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14.0 ft^3/lb
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14.0 lb/ft^3
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10 lb/ft^3
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10 ft^3/lb
Pregunta 8
Pregunta
The human body is comfortable when the heat produced in the body is equal to the heat lost to the surroundings.
Respuesta
- True
- False
Pregunta 9
Pregunta
The rate at which water will evaporate from the wick on the wet-bulb thermometer is determined by the moisture content of the surrounding air.
Respuesta
- True
- False
Pregunta 10
Pregunta
Introduction of forced ventilation in the winter heating season helps to raise the humidity level.
Respuesta
- True
- False
Pregunta 11
Pregunta
When the dry-bulb and wet-bulb temperatures are the same, the relative humidity of the air is [blank_start]100%[blank_end].
Respuesta
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100%
Pregunta 12
Pregunta
Air consists of approximately [blank_start]21%[blank_end] of oxygen.
Respuesta
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21%
Pregunta 13
Pregunta
[blank_start]7,000[blank_end] grains of moisture equals one pound of water.
Respuesta
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7,000
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