What is the maximum distance between pitot tube measuring points in rectangular ducts?
a. 6 inches
b. 10 inches
c. 12 inches
d. 24 inches
a
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Wiring diagrams are usually found where?
A) Lubrication guides B) Unit repair manuals C) Owners manuals D) Factory service manuals
Why is supplemental heat the second stage of heating and not the first?
A) because electric strip heaters turn on and off constantly B) because the thermostat won't let energize right away C) because electric strip heaters produce heat less efficiently D) because auxiliary heat is inexpensive
How does a glass stem thermometer measure temperature?
What will be an ideal response?
What is the advantage of using refrigerant identification equipment?
What is the advantage of using refrigerant identification equipment? A. Determines if system is correctly charged B. Has no advantage C. Should be used when performing "Top Of service D. Allows the ability to determine what type of refrigerant is in system