2023 update DC Third testing questions with complete solutions
The component in which liquid vapor by absorbing heat is called? correct answer: Evaporator Select the best answer electrical grounding method? correct answer: Metal stake drive 8 foot into the ground. A _____ valve should be used for throttling purpose? correct answer: Globe What is the acceptable range for residual sodium sulfite in the boiler maintain? correct answer: 30-70 What is the BTU content of a gallon of #4? correct answer: 146,000 What does a zeolite water softener system use as a means of regeneration? correct answer: Brine What are the 4 steps for a Zeolite Rejuvenation water softener process? correct answer: Back wash Backwash, brine, rinse, service Where is medium temperature is liquid found? correct answer: Condenser Where is high temperature vapor found? correct answer: At the discharge of the compressor or condenser What stays are used to support the burner chamber in a scotch marine boiler? correct answer: Diagonal Stays What type of safety valve is this? correct answer:
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2023 update dc third testing questions with complete solutions
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