, 10 sq. Ft. heating surface - VERIFIED ANSWERSFor the purpose of rating boiler
horsepower for an engineers licence only, how many square feet of boiler surface
shall be equivalent to one boiler horsepower on a boiler?
boilers operating at a steam or other vapor pressure of 15 psig. or less or a hot
water or other liquid boiler in which the pressure does not exceed160 psig or a
temperature of 250 degrees F. - VERIFIED ANSWERSwhat is meant by the term
low pressure boiler?
high and low pressure boilers not to exceeda total of 50 boiler horsepower, or a
shift engineer in a 100 horsepower plant. - VERIFIED ANSWERSa person
holding a current state of Minnesota special engineers license could be in charge
of, or a shift engineer in what size plant?
in any plant regardless of size under the direct supervision of the properly licensed
engineer. - VERIFIED ANSWERSspecial engineer may serve as an apprentice of
what size water/ or steam/vapor boiler?
shut off the burner when a low water condition exists. - VERIFIED ANSWERSthe
purpose of the low water cut out on a steam or hot water boiler is to what?
Safety valve and/or an ASME approved safety relief valve. - VERIFIED
ANSWERSthe valve or valves that must relieve all excess pressure on a steam or
hot water boiler are what?
hot water boiler - VERIFIED ANSWERSa tri indicator could be found on a .....
the temperature of the water, the pressure of water in psig, and the altitude of water
in feet. - VERIFIED ANSWERSa tri indicator would inform the boiler operator of
what?
the instant release of energy stored in the water as heat. - VERIFIED
ANSWERSwhat is the destructive force in a steam or hot water boiler explosion?
steam first, the hot water. - VERIFIED ANSWERSan ASME approved safety
relief valve used on a hot water boiler is tested at the factory on what?