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Arkansas Boiler Operator Study Questions With Complete Solutions

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Which valve is between the boiler and the return pump? correct answer: Check Valve What is the the function of the check valve? correct answer: To prevent the water from returning to the condensation tank from the boiler after the pump shuts off. Four safety features required on the steam boiler are: correct answer: Safety relief valve, blow-down valve, low water cut-off, and pressure gauge. Safety relief valves should be set by: correct answer: Qualified safety valve technician/firm. Which pressure is considered to be that of a low-pressure boiler? correct answer: 0-15 PSI MAWP What could happen if a steam valve is open too quickly? correct answer: Water could be siphoned out of the boiler causing damage to the boiler and steam lines. Why are steam lines insulated? correct answer: To prevent loss of heat during steam transfer. What operating pressure indicates a high pressure boiler? correct answer: 16 PSI and above A steam valve should be opened slowly? correct answer: True Improper mixtures of gas and air causes soot in boiler flues correct answer: True

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