42ⁿ B.P.S.C. (Pre) 1997-98
The Pressure gauge is not given in the domestic LPG cylinders because-
aThey are so costly
bThey cannot represent the quantity of gas in LPG cylinders✓ Correct
cTheir use is not safe
dThey are choked by LPG
Explanation
In a cylinder containing liquefied gas, the pressure remains constant even when the quantity of gas decreases. Therefore, a pressure gauge cannot indicate the correct amount of gas left in the cylinder. ## Page 29
general-science