The dial of a pressure gauge on a hot water boiler indicating SI units can be graduated in
a) metres of mercury
b) mm of water
c) mPa
d) psi
e) kPa
Answer: E
The dial of a pressure gauge on a hot water boiler indicating SI units can be graduated in
a) metres of mercury
b) mm of water
c) mPa
d) psi
e) kPa
Answer: E