What is the approximate ventilation requirement for low-temperature, air-cooled condensing units located in indoors?
A) 400 CFM per 1,000 BTU B) 465 CFM per 1,000 BTU
C) 200 CFM per 1,000 BTU D) 165 CFM per 1,000 BTU
C
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Some circuit controls use a combination of a humidistat and a(n) ____.
a. sail switch b. ionizer c. hygrometer d. dehumidifier
While greasing a U-joint cross, grease exits from only 3 of the four trunnion seals. What should you do first?
A. Leave it, grease will circulate in the cross B. Replace the U-joint assembly C. Pound on the bearing cap with large hammer D. Loosen the journal cap over the affected trunnion and try again
In this right triangle, side BC equals 10 inches and side AB equals 15 inches. Find the length of side AC to the nearest hundredth inch.
Fill in the blank(s) with the appropriate word(s).
In the accompanying figure, which scales are to be used for hydrocarbon and carbon monoxide, respectively?
A. Lo, Lo B. Hi, Lo C. Lo, Hi D. Hi, Hi