Select the techniques that can be used to speed up refrigerant recovery. (You may select more than one.)
A) Use large-diameter hoses. B) Use long hoses.
C) Cool the recovery cylinder. D) Heat the refrigerant system.
E) Recover from both sides of the system at once. F) Heat the recovery cylinder.
A, C, D, E
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What is the radius of a circle that has a diameter of 22-5/8 inches?
a. 11-5/16 inches b. 12-1/4 inches c. 44-5/16 inches d. 45-1/4 inches
If both inputs of an AND gate are normally HIGH but one of them momentarily dips LOW, the output will
A) be LOW. B) momentarily dip LOW. C) stay HIGH. D) go LOW and remain LOW.
Two thousand, five hundred feet of BX cable are ordered. The cable is shipped in 250-foot coils. How many coils are shipped?
Fill in the blank(s) with the appropriate word(s).
The principal products of combustion of any hydrocarbon combustion are water vapor and ____________.
a. carbon monoxide b. soot c. carbon dioxide d. nitrogen