What is the temperature of the point of intersection of adiabatic cooling line and specific humid volume line?

None of the mentionedView answer

21 + Mcqs in Applications Humidity Chart in Chemical Engineering Page 1 McqOptions

1.	What is the enthalpy change of 30oC system if the heat capacity of air at 38oC is 5 J/oC and heat capacity of water vapor at 38oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 60%?
A.	14 J
B.	39 J
C.	65 J
D.	94 JView answer
Answer» E.

Discussion

2.	What is the enthalpy change of 20oC system if the heat capacity of air at 25oC is 5 J/oC and heat capacity of water vapor at 25oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 20%?
A.	25 J
B.	37 J
C.	44 J
D.	51 JView answer
Answer» C. 44 J

Discussion

3.	What is the enthalpy change of 10oC system if the heat capacity of air at 20oC is 5 J/oC and heat capacity of water vapor at 20oC is 15 J/oC, enthalpy of vaporization is 10 J, and the humidity is 40%?
A.	58 J
B.	84 J
C.	114 J
D.	135 JView answer
Answer» D. 135 JView answer

Discussion

4.	What is the enthalpy change of 15oC system if the heat capacity of air at 20oC is 10 J/oC and heat capacity of water vapor at 20oC is 20 J/oC, enthalpy of vaporization is 20 J, and the humidity is 50%?
A.	50 J
B.	60 J
C.	80 J
D.	110 JView answer
Answer» E.

Discussion

5.	What is the enthalpy change of the mixture if the enthalpy change of air is 10 J, enthalpy change of water vapor is 15 J, and the humidity is 40%?
A.	10 J
B.	12 J
C.	14 J
D.	16 JView answer
Answer» E.

Discussion

6.	What is the temperature of the point of intersection of adiabatic cooling line and specific humid volume line?
A.	Wet-bulb temperature
B.	Dry-bulb temperature
C.	Dew point temperature
D.	None of the mentionedView answer
Answer» C. Dew point temperature

Discussion

7.	WHAT_IS_THE_TEMPERATURE_OF_THE_POINT_OF_INTERSECTION_OF_ADIABATIC_COOLING_LINE_AND_SPECIFIC_HUMID_VOLUME_LINE??$
A.	Wet-bulb temperature
B.	Dry-bulb temperature
C.	Dew point temperature
D.	None of the mentioned
Answer» C. Dew point temperature

Discussion

8.	What is the enthalpy change of 15^oC system if the heat capacity of air at 20^oC is 10 J/^oC and heat capacity of water vapor at 20^oC is 20 J/^oC, enthalpy of vaporization is 20 J, and the humidity is 50%?$
A.	50 J
B.	60 J
C.	80 J
D.	110 J
Answer» E.

Discussion

9.	What is the enthalpy change of the mixture if the enthalpy change of air is 10 J, enthalpy change of water vapor is 15 J, and the humidity is 40%?$
A.	10 J
B.	12 J
C.	14 J
D.	16 J
Answer» E.

Discussion

10.	What is the enthalpy change of 30^oC system if the heat capacity of air at 38^oC is 5 J/^oC and heat capacity of water vapor at 38^oC is 10 J/^oC, enthalpy of vaporization is 10 J, and the humidity is 60%?
A.	14 J
B.	39 J
C.	65 J
D.	94 J
Answer» E.

Discussion

11.	What is the enthalpy change of 20^oC system if the heat capacity of air at 25^oC is 5 J/^oC and heat capacity of water vapor at 25^oC is 10 J/^oC, enthalpy of vaporization is 10 J, and the humidity is 20%?
A.	25 J
B.	37 J
C.	44 J
D.	51 J
Answer» C. 44 J

Discussion

12.	What is the enthalpy change of 10^oC system if the heat capacity of air at 20^oC is 5 J/^oC and heat capacity of water vapor at 20^oC is 15 J/^oC, enthalpy of vaporization is 10 J, and the humidity is 40%?
A.	58 J
B.	84 J
C.	114 J
D.	135 J
Answer» D. 135 J

Discussion

13.	What happens to water in the humidification process?
A.	Evaporates
B.	Freezes
C.	Saturated
D.	None of the mentioned
Answer» B. Freezes

Discussion

14.	What is the heat transferred from the system in the humidification process?
A.	Positive
B.	Negative
C.	Zero
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

15.	What is the humidity at the point of intersection of the dew point curve and wet-bulb line?
A.	Dry-bulb Humidity
B.	Wet-bulb Humidity
C.	Specific Humidity
D.	None of the mentioned
Answer» B. Wet-bulb Humidity

Discussion

16.	Which of the following is also called adiabatic cooling?
A.	Humidification
B.	Humidity
C.	Humid temperature
D.	None of the mentioned
Answer» B. Humidity

Discussion

17.	To plot the web-bulb line one information is wet-bulb temperature, what can be the other information?
A.	Relative humidity
B.	Dry-bulb temperature
C.	Humidity
D.	All of the mentioned
Answer» E.

Discussion

18.	Wet-bulb temperature is based on the equilibrium between rates of energy transfer to the bulb and which of the following?
A.	Evaporation of water
B.	Saturation of water
C.	Freezing of water
D.	None of the mentioned
Answer» B. Saturation of water

Discussion

19.	In the humidity chart, what does the horizontal axis represent?
A.	Air temperature
B.	Dry-Bulb temperature
C.	Wet-Bulb temperature
D.	None of the mentioned
Answer» C. Wet-Bulb temperature

Discussion

20.	Humidity chart relates which of the following balances?
A.	Momentum and energy balance
B.	Material and energy balance
C.	Material and momentum balance
D.	None of the mentioned
Answer» C. Material and momentum balance

Discussion

21.	Which of the following is the humidity chart?
A.	Psychrometric chart
B.	Psychometric chart
C.	Psychological chart
D.	None of the mentioned
Answer» B. Psychometric chart

Discussion

Explore topic-wise MCQs in Chemical Engineering.

What is the enthalpy change of 30oC system if the heat capacity of air at 38oC is 5 J/oC and heat capacity of water vapor at 38oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 60%?

What is the enthalpy change of 20oC system if the heat capacity of air at 25oC is 5 J/oC and heat capacity of water vapor at 25oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 20%?

What is the enthalpy change of 10oC system if the heat capacity of air at 20oC is 5 J/oC and heat capacity of water vapor at 20oC is 15 J/oC, enthalpy of vaporization is 10 J, and the humidity is 40%?

What is the enthalpy change of 15oC system if the heat capacity of air at 20oC is 10 J/oC and heat capacity of water vapor at 20oC is 20 J/oC, enthalpy of vaporization is 20 J, and the humidity is 50%?

What is the enthalpy change of the mixture if the enthalpy change of air is 10 J, enthalpy change of water vapor is 15 J, and the humidity is 40%?

What is the temperature of the point of intersection of adiabatic cooling line and specific humid volume line?

WHAT_IS_THE_TEMPERATURE_OF_THE_POINT_OF_INTERSECTION_OF_ADIABATIC_COOLING_LINE_AND_SPECIFIC_HUMID_VOLUME_LINE??$

What is the enthalpy change of 15oC system if the heat capacity of air at 20oC is 10 J/oC and heat capacity of water vapor at 20oC is 20 J/oC, enthalpy of vaporization is 20 J, and the humidity is 50%?$

What is the enthalpy change of the mixture if the enthalpy change of air is 10 J, enthalpy change of water vapor is 15 J, and the humidity is 40%?$

What is the enthalpy change of 30oC system if the heat capacity of air at 38oC is 5 J/oC and heat capacity of water vapor at 38oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 60%?

What is the enthalpy change of 20oC system if the heat capacity of air at 25oC is 5 J/oC and heat capacity of water vapor at 25oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 20%?

What is the enthalpy change of 10oC system if the heat capacity of air at 20oC is 5 J/oC and heat capacity of water vapor at 20oC is 15 J/oC, enthalpy of vaporization is 10 J, and the humidity is 40%?

What happens to water in the humidification process?

What is the heat transferred from the system in the humidification process?

What is the humidity at the point of intersection of the dew point curve and wet-bulb line?

Which of the following is also called adiabatic cooling?

To plot the web-bulb line one information is wet-bulb temperature, what can be the other information?

Wet-bulb temperature is based on the equilibrium between rates of energy transfer to the bulb and which of the following?

In the humidity chart, what does the horizontal axis represent?

Humidity chart relates which of the following balances?

Which of the following is the humidity chart?

What is the enthalpy change of 15^oC system if the heat capacity of air at 20^oC is 10 J/^oC and heat capacity of water vapor at 20^oC is 20 J/^oC, enthalpy of vaporization is 20 J, and the humidity is 50%?$

What is the enthalpy change of 30^oC system if the heat capacity of air at 38^oC is 5 J/^oC and heat capacity of water vapor at 38^oC is 10 J/^oC, enthalpy of vaporization is 10 J, and the humidity is 60%?

What is the enthalpy change of 20^oC system if the heat capacity of air at 25^oC is 5 J/^oC and heat capacity of water vapor at 25^oC is 10 J/^oC, enthalpy of vaporization is 10 J, and the humidity is 20%?

What is the enthalpy change of 10^oC system if the heat capacity of air at 20^oC is 5 J/^oC and heat capacity of water vapor at 20^oC is 15 J/^oC, enthalpy of vaporization is 10 J, and the humidity is 40%?