Which valve is between the boiler and the return pump - ANSWER-check valve
what is the function of the check valve - ANSWER-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 - ANSWER-safety relief valve, blow-down valve, low water cut-off, and pressure gauge
safety relief valves should be set by - ANSWER-qualified safety valve technician
which pressure in considered to be that of a low-pressure boiler - ANSWER-0-15 PSI MAWP
what could happen if a steam valve is opened quickly - ANSWER-water could be siphoned out of the boiler causing damage to boiler and steam lines
why are steam lines insulated - ANSWER-to prevent heat loss during steam transfer
what operating pressure indicated a high-pressure boiler - ANSWER-16 PSI and above
a steam valve should be opened slowly true or false - ANSWER-true
improper mixtures of gas and air causes soot in boiler flues true or false - ANSWER-
true
what is a water injector - ANSWER-a mechanical device for forcing water into a boiler against high pressures
what is the purpose of a baffle wall in a boiler - ANSWER-to distribute flame evenly
If a boiler is not kept clean internally, scales will form and cause the boiler to blister true or false - ANSWER-false
a boiler operator operating a boiler without a license shall be guilty of a misdemeanor and upon conviction thereof shall be punished by a fine of not less than $25 and not more that $100 and in addition may be imprisoned for no more thatne 2 years or both true or fals - ANSWER-true
a boiler operator must have the following number of months on -the-job training before he can take the operator's examination - ANSWER-6 months minimum