High Pressure Boilers Test Questions For Dc Third Class With 159 Questions And Answers

An Easy method of Detection of bowed water wall tubes is by {Ans: Placing a straight edge across several adjustments of tubes}Wet Back {Ans: Fire tube boiler with three tube sheets and a turnaround chamber, with a water leg formed between the rear tube sheet an chamber}boiler Screen tubes protect which component from high furnace impact {Ans: Super heater}Steam/ water mixture becomes less Dense which creates a _________ {Ans: Natural circulation in the boiler}The amount of refractory and fire bricks needed in a boiler has been reduced through the use of {Ans: Water walls}Boiler Capacity is Measured by {Ans: BTU/HR and LBS/ HR, 34.5LB/Hr X 970.3 Btu/Hr = 33,475 Btu/hr}Heating Surface {Ans: Water on one side and gases of combustion on the other}Fire tube boilers are designed for Pressure up to.... {Ans: 350 PSI and 750 BHP}Dry back {Ans: Fire tube boiler with a refractory-lined rear door that directs gases to the tubes}When water is heated it ______ volume and Becomes ______ {Ans: increases, Less Dense}Shear Stress {Ans: Act parallel from top and bottom creates an (S)}Stress {Ans: is Pressure or tension applied to an object}MCC {Ans: