Which of the following should a process technician do when monitoring and maintaining boilers?

A) Check burner flame color
B) Check draft balance
C) Check temperature gradient
D) All of the above


Answer: D
Explanation: A) Incorrect. Process technicians should check burner flame color, check draft balance, and check temperature gradient when monitoring and maintaining boilers.
B) Incorrect. Process technicians should check burner flame color, check draft balance, and check temperature gradient when monitoring and maintaining boilers.
C) Incorrect. Process technicians should check burner flame color, check draft balance, and check temperature gradient when monitoring and maintaining boilers.
D) Correct. Process technicians should check burner flame color, check draft balance, and check temperature gradient when monitoring and maintaining boilers

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