The low-voltage remote-control system offers control flexibility that is not available in thetraditional control system. The switches used in this system operate on 24 volts, and the powerwiring, at 120 volts, goes directly to the electrical load. This reduces branch-circuit length and____________.
What will be an ideal response?
voltage drop
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The substance in refrigerants that is primarily responsible for damaging the ozone layer is _____.
a. fluorine b. hydrogen c. chlorine d. bromine
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What is the cofunction of the complement of sec 12°?
Fill in the blank(s) with the appropriate word(s).
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All of the following statements are true EXCEPT:
A. Refrigerant R-1234yf is flammable. B. Refrigerant R-13a is flammable. C. Contact with refrigerant vapor can cause frostbite. D. Coolant cannot be drained into the shop drain system.
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Bus contention occurs when two sources attempt to drive a shared signal line to the same logic level, creating escessive current in the signal line
Indicate whether the statement is true or false
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