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Q4: Which of the following is NOT a
Q10: When a split-phase motor is running, both
Q10: High soot levels in the flue gas
Q11: The code > is a(n) _ .<br>A)
Q12: When diagnosing the control circuit at the
Q12: Which is NOT a cause of high
Q13: List the three methods of keeping indoor
Q13: When the fuel oil tank is located
Q19: Which products of combustion are toxic?<br>A) carbon
Q21: Which refrigerant type experiences the largest temperature