One advantage of using a screw instead of a nail is that a screw can be removed more easily than a nail. The other main advantage is that a screw____________
A. has a better appearance
B. has greater holding power
C. will not rust as easily
D. is easier to install
Answer: B
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The operation of the overload protection ____ the control circuit.
a. opens b. cancels c. closes d. verifies
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What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
1. The American Wire Gauge is used mainly in the United States for the diameters of round, solid, nonferrous electrical wire. 2. For concentric wire stranding, a center wire is surrounded by one or more definite layers of wires, and each wire layer contains four wires more than the layer immediately beneath it. 3. Resistors come in various sizes, types, and ratings to accommodate the needs of almost any circuit application. 4. Fixed resistors have two ohmic values that cannot be changed or adjusted. 5. Fixed resistors are generally produced in standard values, and the lower the tolerance value, the fewer resistance values available.
For each magnitude frequency response and each unit sequence response in Figure E.44, find the corresponding pole-zero diagram.
