Boiler Exam 21 Sample Questions with 100% Complete Solutions

Which valve is between the boiler and the return pump - cORRECT sOLUTION check valve what is the function of the check valve - cORRECT sOLUTION prevent the water from returning to the condensation tank from the boiler after the pump shuts off four safety features required on the steam boiler are - cORRECT sOLUTION safety relief valve, blow-down valve, low water cut-off, and pressure gauge safety relief valves should be set by - cORRECT sOLUTION qualified safety valve technician which pressure in considered to be that of a low-pressure boiler - cORRECT sOLUTION 0-15 PSI MAWP what could happen if a steam valve is opened quickly - cORRECT sOLUTION water could be siphoned out of the boiler causing damage to boiler and steam lines why are steam lines insulated - cORRECT sOLUTION to prevent heat loss during steam transfer what operating pressure indicated a high-pressure boiler - cORRECT sOLUTION 16 PSI and above a steam valve should be opened slowly true or false - cORRECT sOLUTION true improper mixtures of gas and air causes soot in boiler flues true or false - cORRECT sOLUTION true