Which of the following should a process technician not do when monitoring and maintaining furnaces?
A) Check draft balance (pressures)
B) Check burner balance (fuel-to-air) ratios
C) Observe flame color in firebox
D) Using YouTube check for excessive vibration
Answer: D
Explanation: A) Incorrect. A process technician should check draft balance, check burner balance, and observe flame color in firebox when monitoring and maintaining furnaces.
B) Incorrect. A process technician should check draft balance, check burner balance, and observe flame color in firebox when monitoring and maintaining furnaces.
C) Incorrect. A process technician should check draft balance, check burner balance, and observe flame color in firebox when monitoring and maintaining furnaces.
D) Correct. A process technician should check draft balance, check burner balance, and observe flame color in firebox when monitoring and maintaining furnaces.
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