NYC High Pressure Boiler License Exam with Questions and Answers

NYC High Pressure Boiler License Exam with Questions and Answers Gage to be measured in the magnitude of 5 psig shall not be calibrated in no less than? ANSWER 1/5" increments At what percent do you hydrostatically test a boiler? ANSWER 150% Beside a log book being inspected by a state boiler inspector who else can look at the book? ANSWER the insurance company What is the difference between low pressure and high pressure safety relief valves? ANSWER Low pressure relieves to drain, high pressure to vent What is the minimum dial arc on a 2-1/4" gage ANSWER 270* Where is the steam gage installed on a mini boiler? ANSWER On the steam space side What is an effective stop for a gauge? ANSWER The indicating point at zero How long is the pre-purge on a low pressure boiler? ANSWER 90 seconds