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Refrigeration and Air Conditioning

During sensible heating of air __________ decreases.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: During sensible heating of air __________ decreases.
[A].

wet bulb temperature

[B].

relative humidity

[C].

dry bulb temperature

[D].

specific humidity

Answer: Option B

Explanation:

No answer description available for this question.

During sensible heating of air __________ decreases. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

For a given dry bulb temperature, as the relative humidity __________ the wet bulb temperature will increase.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: For a given dry bulb temperature, as the relative humidity __________ the wet bulb temperature will increase.
[A].

increases

[B].

decreases

Answer: Option B

Explanation:

No answer description available for this question.

For a given dry bulb temperature, as the relative humidity __________ the wet bulb temperature will increase. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

As relative humidity decreases, the dew point temperature will be __________ wet bulb temperature.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: As relative humidity decreases, the dew point temperature will be __________ wet bulb temperature.
[A].

same as

[B].

lower than

[C].

higher man

Answer: Option B

Explanation:

No answer description available for this question.

As relative humidity decreases, the dew point temperature will be __________ wet bulb temperature. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

At 100% relative humidity, wet bulb temperature, dry bulb temperature, dew point temperature and saturation temperature are equal.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: At 100% relative humidity, wet bulb temperature, dry bulb temperature, dew point temperature and saturation temperature are equal.
[A].

Correct

[B].

Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

At 100% relative humidity, wet bulb temperature, dry bulb temperature, dew point temperature and saturation temperature are equal. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In a psychrometric chart, specific humidity (moisture content) lines are

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In a psychrometric chart, specific humidity (moisture content) lines are
[A].

vertical and uniformly spaced

[B].

horizontal and uniformly spaced

[C].

horizontal and non-uniformly spaced

[D].

curved lines

Answer: Option B

Explanation:

No answer description available for this question.

In a psychrometric chart, specific humidity (moisture content) lines are Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In a psychrometric chart, dew point temperature lines are horizontal and non-uniformly spaced.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In a psychrometric chart, dew point temperature lines are horizontal and non-uniformly spaced.
[A].

Correct

[B].

Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

In a psychrometric chart, dew point temperature lines are horizontal and non-uniformly spaced. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Dew point temperature corresponds to the saturation temperature of vapour at its partial pressure.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: Dew point temperature corresponds to the saturation temperature of vapour at its partial pressure.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Dew point temperature corresponds to the saturation temperature of vapour at its partial pressure. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

According to Dalton’s law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour)

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: According to Dalton’s law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour)
[A].

Pb = pa – pv

[B].

Pb = pa + pv

[C].

Pb = pa x pv

[D].

Pb = pa/pv

Answer: Option B

Explanation:

No answer description available for this question.

According to Dalton’s law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour) Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning