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NJ Black Seal Exam Newest 2025/2026 Complete All Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+||Brand New Version!
In your boiler plant you have pumps that are used for numerous applications. One of the pumps has a small amount of liquid coming from the packing gland. Is this normal or is it a problem? - ANSWER-This is normal and is necessary to lubricate and cool the packing.
A thermal expansion feedwater regulator operates by? - ANSWER-The expansion and contraction of a thermostatic element.
What would one standard atmosphere at 14.7 PSI be equivalent to in feet of water? - ANSWER-34 FEET
Which statement best describes the operation of a closed feedwater heater? - ANSWER-The steam and water do not mix.
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While making a round of your boiler room, the boiler feedwater pump is making a strange noise. - ANSWER-Pump cavitation issue.
When taking over a shift, the boiler operator must first check - ANSWER-Water level on all boilers online by blowing down the water column and gauge glasses.
What chemical should be added to the boiler feedwater to prevent oxidation? - ANSWER-SODIUM SULFITE.
What water treatment chemical is used to control alkalinity in boiler feedwater? - ANSWER-Caustic soda
Where is caustic embrittlement most likely to occur? - ANSWER-Ona riveted joint below the water line.
Ona PH scale, what number would represent the most acidic of a solution of feedwater? - ANSWER-The most acidic would be 0
In a boiler plant system, what is the measure of degree of acid called? - ANSWER-PH level 2 / 3
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What should new or re-tubed boilers be cleaned with? - ANSWER-Alkaline detergent
Which of the following would cause scale to form in a low- pressure boiler? - ANSWER-Calcium and magnesium
As solids and alkalinity in boiler water increase. - ANSWER- Waterside scaling is increased.
What chemical would be used to control scale in a low pressure boiler? - ANSWER-Phosphate
What will excessive oxygen in the boiler water cause? - ANSWER-Pitting of boiler metal
By N.J.A.C 12:90 what is the minimum thickness allowed for
atmospheric blowdown tank? - ANSWER-5/16 inch
In the state of NJ, when is it permissible to have only one bottom blow off valve? - ANSWER-When MWAP does not exceed 100 PSI
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