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BLACK SEAL COMPREHENSIVE TEST BANK FULL QUESTIONS AND ANSWERS STUDY SHEET

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BLACK SEAL COMPREHENSIVE TEST BANK FULL QUESTIONS AND ANSWERS STUDY SHEET

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BLACK SEAL COMPREHENSIVE TEST BANK
FULL QUESTIONS AND ANSWERS STUDY
SHEET

●● If a one square inch column of water is one foot tall, how much does
it weigh?
Answer: .433 lbs


●● Where is the flame sensing device located on a boiler?
Answer: front


●● Cracking of the boiler metal can be caused by:
Answer: caustic embrittlement


●● How would you test the operation of the flame failure device?
Answer: by shutting off the fuel supply valve


●● Where are the combustible gases located in a water tube boiler?
Answer: flowing around the tubes


●● What are you preventing by increasing the pressure within a cold
boiler gradually?

, Answer: thermal shock


●● When performing a hydrostatic test, the pressure on the boiler should
not exceed:
Answer: 10 psi above 1.5 times the MAWP


●● A boiler operator log must be maintained in a boiler room containing
over:
Answer: 100 horsepower


●● If a flame sensing device notices that there is a flame failure, what
device does it secure?
Answer: fuel solenoid valve


●● What type of draft has a fan between the boiler and the chimney?
Answer: induced


●● What is used to control alkalinity?
Answer: caustic soda


●● What is the best way to decide the blowdown frequency for a boiler?
Answer: boiler water analysis

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