The International Residential Code (IRC) requires a heating unit to be installed in any residence built in an area where the winter temperature is below ____°F.
A. 40
B. 50
C. 60
D. 70
Answer: C
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A natural fiber or synthetic rope line used to control the swinging of the load in hoisting activities is a _____.
a. link line b. tag line c. load line d. lead line
For maximum efficiency and economy, the refrigeration system in an industrial air dryer is controlled by a flow switch in the air supply line.
Answer the following statement true (T) or false (F)
The easiest way to make a 7493 4-bit binary counter count 0 to 7 is to
A) tie the input to Clock 1 and don't use the first flip-flop. B) tie output Q2 to the reset inputs. C) tie the input to Clock 0 and don't use the remaining flip-flops. D) tie output Q3 to the reset inputs.
What is the unit of measure for the power delivered to the load in a DC circuit?
A. hertz B. volt-amperes C. VARs D. watts