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NIULPE 5TH CLASS STUDY GUIDE EXAM QUESTIONS AND ANSWERS

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NIULPE 5TH CLASS STUDY GUIDE EXAM QUESTIONS AND ANSWERS A flame safe guard system monitors - CORRECT ANSWERAir flow to combustion chamber, pilot & main flame, fuel pressure & temperature

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NIULPE 5TH CLASS STUDY GUIDE EXAM QUESTIONS AND
ANSWERS
A flame safe guard system monitors - CORRECT ANSWER✅✅✅Air flow to combustion chamber, pilot
& main flame, fuel pressure & temperature



Definition of British Thermal Unit - CORRECT ANSWER✅✅✅Amount of heat required to raise 1
lb/water 1 degree farenheit



When gauge glass is broken, water level in a boiler can be determined by - CORRECT
ANSWER✅✅✅Opening and closing a set of try cocks



Blowdown from a high pressure boiler would be piped directly to - CORRECT ANSWER✅✅✅blow off
basin or blowdown tank



List 3 types of refrigerant flow controls - CORRECT ANSWER✅✅✅capillary tubes, automatic
expansion valve, thermostatic expansion valve



What is the primary function of a liquid line filter dryer? - CORRECT ANSWER✅✅✅Remove
moisture, dirt, and metal chips



What size of wire commonly used in 15 and 20 amp branch circuits for wiring 110 volts? - CORRECT
ANSWER✅✅✅12 and 14 gauge



Rate of combustion should be observed carefully when raising steam pressure of a boiler because of
possible ? - CORRECT ANSWER✅✅✅Strains on boiler



Boiler bottom blowdown valves should be open ? - CORRECT ANSWER✅✅✅100%



The capacity of compressors is usually expressed in ? - CORRECT ANSWER✅✅✅Cubic feet per
minute (CFM)

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