License Practice Exam Questions
A Special Engineer is expected to be competent, take charge of, and be responsible for the safe
operation and maintenance of all classes of boilers of not more than ___________ HP and their
appurtenances. ANS: 50
A gauge glass can be attached to a ____________ column, which is attached to a boiler. ANS: water
In accordance with the statutes of the State of Minnesota, one boiler horsepower for conventional
boilers is equal to ____________ ANS: 10 sq ft of boiler heating surface
In accordance with the statutes of the State of Minnesota, one boiler horsepower for steam-coil-type
generators is equal to ____________ ANS: 5 sq ft of boiler heating surface
When the boiler heating surface cannot be discerned, the boiler horsepower shall be determined by
dividing the Btu input by ____________ ANS: 67,000
In accordance with the statues of the State of Minnesota, each electric boiler horsepower is equal to
____________ kilowatts ANS: 10
A logbook must be maintained in the boiler room by the ____________ ANS: the chief engineer or the
operating engineer designee
The shift engineer of a high pressure boiler plant of over 200 HP must stay within ____________ of
boiler room at all times during the shift? ANS: 500 ft
A high pressure boiler must have two means of feedwater supply if it exceeds ____________ HP. ANS:
50
, When used, a quick-opening blowdown valve must be located ____________ ANS: nearest to the boiler
The minimum passing score for a Minnesota engineer's license examination is ____________% ANS: 70
Licenses granted must be displayed in ____________ ANS: a conspicuous place in the engine or boiler
room
For the purpose of the boiler and pressure vessels statutes, "a year" is considered to be at least
____________ hr. ANS: 2000
Sensible heat is ____________ ANS: able to cause a change in temperature
Heat that brings about of state without causing a change in temperature is ____________ ANS: called
latent heat
In a boiler, heat is transferred from the burning fuel to the water by ____________, ____________, and
____________ ANS: convection, conduction, radiation
Convection is method of heat transfer where the movement of the fluids is due solely to the
____________ ANS: flow of fluids
Large high pressure utility boilers use ____________ ANS: balanced draft
When heat transfer occurs by traveling through metal, it is known as ____________ ANS: conduction
An example of the transfer of heat by radiation is ____________ ANS: the heating effect of the sun on
the earth