The safety valves on a boiler and are set to open at 1380 kPa. What is the maximum permissible pressure rise in the boiler if it is fired at full capacity with the steam outlet valve closed?
a. 0 kPa
b. 37.5 kPa
c. 41.4 kPa
d. 69 kPa
e. 82.8 kPa
Answer: E