On an induced draft furnace, a draft switch that will not close will
A) Cause the induced draft blower to operate continuously, even with no heating call
B) Will prevent the igniter from energizing
C) Prevent the indoor blower from operating
D) Prevent the combustion blower from operating
B
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Which of the following refrigerants is considered an HFC-type of refrigerant?
A. R-134a. B. R-12. C. R-22. D. R-11.
Milking machines use a ____________________ to attach to a cow's udder to draw milk by means of a vacuum
Fill in the blank(s) with correct word
All panelboards shall have a rating not less than the ____ required for the load calculated in accordance with Part III, IV, or V of Article 220.
A. minimum feeder capacity B. maximum feeder capacity C. 50 % of maximum feeder capacity D. 50 % of minimum feeder capacity
Use Data Sheet 5 and 7.Mixed number Example: 2-1/3Put a dash between the whole number and the fraction.Simple Fraction Example: 2/3
3/4" copper pipe is divided into three equal segments.c-c = 63 inches long3/4" copper, 90° ell3/4" copper, teeFind the end-to-end measure of pipe B.
Fill in the blank(s) with the appropriate word(s).