Differential controls provide a mechanical means, _______________ of the electrical control circuit.
Fill in the blank(s) with the appropriate word(s).
independent
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If a job is delayed due to late delivery of materials, the crew leader should _____.
a. get in the habit of checking with the supplier in advance of the scheduled delivery b. demand a discount from the supplier to compensate for the delay c. refuse the late delivery and re-order the materials from another supplier d. contact the home office and advise them to drop the supplier from their list
What can be used to maintain the head pressure of a system with a water-cooled condenser?
A. Fan cycling. B. Dampers or louvers. C. Water regulating valve. D. All of the above.
A(n) _____ states your main point and purpose for writing, and is a way of getting your key message across to the reader
a. introduction b. message strategy c. thesis statement d. welcome message
In a four-pipe water system, what type of valve is used on each double-coil terminal?
a. Three-way valve b. Orifice plate c. Balancing valve d. Two-way valve