Which of the following does the trinary switch not control?
A. High system pressure
B. Low system pressure
C. Cycling of the cooling fan
D. Fan timer
Answer: D
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What should a process technician inspect when a heat exchanger is disassembled?
A) Leaky tubes B) Tube sheet C) Divider plate D) All of the above
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Which condition would cause a humidifier to provide no moisture?
a. Open solenoid valve coil windings b. Solenoid valve stuck open c. Plugged drain line d. Excessive water hammer
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The accompanying figure shows an assortment of mechanical symbols. What is the second symbol from the bottom?
A. Rectangular ceiling diffuser B. Round ceiling diffuser C. Flexible connection D. Transition
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One horsepower is how many watts?
A) 746 B) 467 C) 10,000 D) 1,000
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