What is the formula for calculating synchronous speed in RPM?
What will be an ideal response?
The formula for synchronous speed in RPM is:
Synchronous speed in RPM = (120 X Frequency in hertz)/Number of poles.
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List the most common types of single phase motors
What will be an ideal response?
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Which of the following loads will result in most efficient operation for a condensing boiler?
A) Radiant floor. B) Heating coil in air handling unit. C) Baseboard convector. D) Reheat coil in VAV reheat box.
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Concrete that has hardened but not yet gained structural strength, is referred to as _____.
a. raw b. green c. uncured d. unstable
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In a kitchen, ____ condensing units may be easier to maintain.
A. self-contained B. remote C. local D. hybrid
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