Answer :
The absolute pressure is 256kPa. So, the correct option is A.
What is Gage and Atmospheric pressure?
Gauge pressure is defined as the amount by which the measured pressure in a fluid exceeds atmospheric pressure which is expressed as
[tex]p_g=p- p_o[/tex]
Where,
[tex]p_g[/tex] is gauge pressure
p is absolute pressure
[tex]p_o[/tex] is atmospheric pressure
Barometric pressure is called as the atmospheric pressure is defined as the force exerted by the atmosphere at a given point.
For above given example,
gauge pressure= 156kPa
Gauge pressure (GP) will be 0 at atmospheric pressure (AP), so the absolute pressure= GP + AP.
Since atmospheric pressure is 100 kpa
Absolute pressure= 100 + 156 = 256 kpa.
Thus, the absolute pressure is 256kPa. So, the correct option is A.
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