Boiler License Test Questions with Correct Answers
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Course
Boiler
Institution
Boiler
Boiler License Test Questions with Correct Answers
Natural draft is produced by? - Answer-difference in temperature outside chimney from inside chimney
If a draft fan is located between the boiler and chimney, what type of draft system is it? - Answer-Induced draft
boiler fittings are im...
Boiler License Test Questions with Correct Answers Natural draft is produced by? - Answer -difference in temperature outside chimney from inside chimney If a draft fan is located between the boiler and chimney, what type of draft system is it? - Answer -Induced draft boiler fittings are important for: - Answer -safety only thermostatic traps remove air and cool condensate: true or false - Answer -True The main purpose of testing a safety value is to: - Answer -make sure valve operates freely when testing a safety valve by hand, you must: - Answer -have at least 75% of popping pressure If a license is expired, how long can it be expired before it is null and void? - Answer -3 years What is the purpose of a check valve? - Answer -prevent reverse flow, allows flow in one direction What is a solenoid valve? - Answer -An automatic gas shutoff valve What # oil needs to be preheated with what piece of equipment? - Answer -#6 oil with a heater What type of test is a hardness test? - Answer -A titration test What is the most important rule in operating boilers? - Answer -keep water at proper level what is the capacity of a safety valve measured in? - Answer -Pounds of steam per house (#steam/hr) What prevents a furnace explosion? - Answer -The purge cycle Ignition failure would cause activation of the: - Answer -Purge Cycle What is the most common cause of cast iron boiler failure? - Answer -Cracking What is the most common cause of problems in a hot water system? - Answer -Air Where would you place a water temperature indicator? - Answer -At the boiler supply A chief engineer is not needed in a low pressure plant: true or false - Answer -True The positioning control cannot function without? - Answer -air what fire tube boiler is most efficient - Answer -4 pass What is the maximum size blowdown line? - Answer -2 1/2 inches when do you close a boiler vent? - Answer -When steam comes out Carryover can lead to: - Answer -water hammer if water leaves the boiler at 170 degrees, what temperature does it return at? - Answer - 150 degrees Where are the combustion gases on a serpentine boiler? - Answer -below the tubes What does PSIA stand for? - Answer -Psig + atmospheric pressure When should the water column and gauge glass should be blown down? - Answer -Daily What oil has to be heated? - Answer -#6 oil Natural water may contain: - Answer -solids and other pollutants The expansion tank in a hot water system allows for the expansion of: - Answer -water As the water in a hot system expands: - Answer -the pressure remains constant Boiler water should have a pH of: - Answer -11
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