Dc Boiler Exam 2024-2025 Questions And Answers

DC BOILER/STATIONARY EXAM 2024-2025 QUESTIONS AND CORRECT VERIFIED ANSWERS /100% PASS SOLUTION / ALREADY GRADED A+ Which element does not take an actual action in the combustion process? - ANSWER-nitrogen Immediately after a repair to a refrigeration system what is used to remove moisture From the system? - ANSWER-vacuum pump The boiler steam line is 450 feet long. During start up the pipe is heated from 70F to 360F. how many inches the pipe will expand? - ANSWER-Formula: Exp in = (T1 - T2) x L x 0.0000065 = 360 - 70 x (450x12) x 0.0000065 = 290 x 5400 x 0.0000065 = 10.18? 10.18 What would you add to a boiler, if you are needed to the protect the refractory from Excess heat and to increase the capacity of the boiler? - ANSWER-Riser tubes A condensate tank has a lot of steam existing from its vent it is registering 20 F higher Than normal. What could be the reason? - ANSWER-Steam trap failing open What kind of valve allows a boiler to be "cut in online" when the main isolation valve is Open or closed? - ANSWER-Stop check valve In a siphon, what is the water seal between the