What are the broad areas that commercial refrigeration equipment is grouped in based on the evaporator coil temperature?
A) Perishable frozen and perishable non-frozen
B) Frosting, non-frosting, and defrosting
C) Refrigerator and freezers
D) High, medium, low, and cryogenic temperatures
D
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Which type of vent material is not of double-wall construction?
a. PVC b. Type B-W c. Type L d. Type B
Which of the following statements is LEAST-Likely true?
A. When reassembling some large-bore, single-piston calipers, it is helpful to apply short bursts of air into the caliper's fluid inlet to help square up the piston and inflate the dust boot while working the piston down into the bore. B. After a caliper has been disassembled, a new seal must be used. C. Most fixed calipers use interchangeable inner and outer pads that can usually be slid in from the top after caliper installation. D. Due to weight transfer, rear linings are expected to wear out about twice as often as front linings.
A "header" is a transverse raceway ____.
A. that forms a continuous, unbroken conductor connecting individual outlets B. in a cellular metal floor, that may be approved as enclosures for electric conductors C. within rigid tubing enclosed in tubular space whose axis is parallel to the axis of a metal floor member D. for electric conductors, providing access to predetermined cells of a cellular metal floor
Typically defined as having a grade of ____% or greater, steep slopes present serious erosion challenges and should be left undeveloped whenever possible.
A. 10 B. 20 C. 25 D. 30