An operator should check that a boiler safety valve will open at its set pressure by:
a. Asking the inspector to bring a master pressure gauge
b. Increasing the boiler pressure and noting the pressure at which the valve opens
c. Putting a piece of pipe over the lifting lever and lifting the valve off its seat when the set pressure is reached
d. Using air pressure during a shutdown to raise the pressure in the boiler until the set pressure is reached
e. Performing a hydrostatic test on the boiler
Answer: B