Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion


During sensible cooling of air __________ decreases.

[A]. wet bulb temperature
[B]. relative humidity
[C]. dry bulb temperature
[D]. specific humidity

Answer: Option C


No answer description available for this question.

Sachin said: (Nov 30, 2013)  
How this possible also Wt bulb temp also decreasing?

Hem said: (Jul 18, 2014)  
Hey I think during sensible cooling wet bulb temperature also decreases in addition to dry bulb temp. Have a look.

Swapnil said: (Jan 27, 2015)  
In this process D.B.T. and W.B.T. decreases, relative h increases and sp humidity remain constant.

Harry said: (May 24, 2015)  
WBT decreases.

Sharmistha said: (Aug 1, 2016)  
Insensible cooling wbt decreases, dew point temp and dry bulb temp remain constant and relative humidity increases and specific humidity remains const.

Vijay said: (Mar 14, 2017)  
During sensible cooling- dbt, wbt decrease, dew point temp remain constant, relative humudity increase, specific humudity remain constant.

Vivek Kumar said: (Mar 15, 2017)  
Wet bulb temp also increases.

Mrugesh said: (Mar 18, 2017)  
Yes, WBT definitely decreases.

Bipul Ranjan said: (Mar 24, 2017)  
After sensible cooling of air it will contain moisture in air. And as the moisture decreases then it will be dry air free of moisture.

Abhilash said: (Dec 25, 2017)  
Option A & C is the correct answer.

Ayo said: (May 12, 2018)  
Cooling of the air is one of the most common psychrometric processes in the air conditioning systems. The sensible cooling of air is the process in which only the sensible heat of the air is removed so as to reduce its temperature, and there is no change in the moisture content (kg/kg of dry air) of the air.

I think the answer is correct.

Manish Kawale said: (Jan 30, 2019)  
In sensible cooling;

WBT decrease.
Relative humidity increase.
DBT constant.
Specific humidity constant.
So the answer will be option A) WBT.

Nitin said: (Feb 15, 2019)  
Answer will be both A & C. I too agree.

Krishna said: (Mar 14, 2019)  
Wbt - constant.
RH - increases.
Dbt - decreases.
Sp.humidity - constant.

Kapil said: (Feb 10, 2020)  
Yes, WBT also Decreases.

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