Boiler License Exam Questions with All Correct Answers

Boiler License Exam Questions with All Correct Answers When applying the 90% rule to the output of 500 HP, its output would be - Answer15525 pph A high pressure boiler can be used in a low pressure situation: - Answer-sometimes It takes BLANK BTUs to raise 5 pounds of water from 200 to 212 degrees F - Answer60 Minnesota Operators license are renewed every - Answer-2 years The circumference of a circle with a radius of 3 inches is - Answer-18.84 inches For Minnesota Operators licensing purpose, BLANK square feet of HS equals 1 BHP. - Answer-10 What can affect the output of a boiler (three) - Answer-Inlet air temperature, feedwater temperature, HS scale The boiler's MAWP is (two) - Answer-Stamped on the manufacturer's tag, Stamped on the boiler shell Soot blowers are more often found on BLANK boilers - Answer-fire tube A boiler with 1250 square feet of HS should produce (PPH and HP) - Answer-8625 PPH and 250 HP The letter M = (number) - Answer-1000 Rating boiler horsepower for an Engineers License only, how many square feet of HS shall be equivalent to one boiler horsepower on a boiler? - Answer-10 square feet of heating surface What is meant by the term low pressure boiler? - Answer-Boilers operating at a steam of other vapor pressure of 15 psig or less, OR a water or other liquid boiler in which the pressure does not exceed 160 psig or a temperature of 250 degress F A person holding a current state of Minnesota Special Engineer License could be in charge of - Answer-High and low pressure boilers not to exceed a total of 50 Boiler HP A special engineer could be a shift engineer in a plant of not more than - Answer-100 BHP A special engineer may serve as an apprentice in what size water or other liquid OR steam or other vapor boilers - Answer-In any plant regardless of size under the direct supervision of the properly licensed engineer The purpose of the low water cut out on a steam or hot water boiler is to - Answer-Shut off the burner when a low water condition exists The valve or va