?Which type of earth loop enables purging each circuit of a parallel, closed-loop system individually?
A. ?loops that include an expansion tank
B. ?loops that include a circulator
C. ?non-valved systems
D. ?valved systems
Answer: D
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Which diagram is most useful to the worker who installs the conduit and the wires between the starter panel and the control panel and motor?
What will be an ideal response?
Which of the following was not true of farms that located near rivers or canals in the 1800s?
a. This location permitted farms to ship goods to every state. b. This location permitted transportation by both ship and barge. c. This location required farmers to put crops into the hands of “middle-“ shippers. d. The cost of transporting a crop would negate any advantage to accessing a more affluent market e. Shipping by water was prohibitively expensive.
One ounce is equal to 28.35 grams. Convert 16 ounces to grams. Round your answer to the nearest tenth
A) 1.8 grams
B) 12.4 grams
C) 44.4 grams
D) 453.6 grams
When do positive shutoff fittings reduce refrigerant loss?
A) Only when connecting hoses B) When fixing broken hoses C) Only when disconnecting hoses D) When connecting and disconnecting hoses