Which of the following factors does not affect boiler operation?
A) Pressure
B) Temperature
C) Water level
D) Viscosity of water
Answer: D
Explanation: A) Incorrect. Factors that affect boiler operation include pressure, temperature, water level, and differences in water density.
B) Incorrect. Factors that affect boiler operation include pressure, temperature, water level, and differences in water density.
C) Incorrect. Factors that affect boiler operation include pressure, temperature, water level, and differences in water density.
D) Correct. Factors that affect boiler operation include pressure, temperature, water level, and differences in water density.
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