What is the name of a figure formed by two radii and the arc intercepted by the radii?

Fill in the blank(s) with the appropriate word(s).


sector

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A portable circular saw has _____.

a. a fixed (non-adjustable) baseplate b. retractable lower and upper blade guards c. a retractable upper blade guard d. a retractable lower blade guard

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Explain why the use of GMA welding can help reduce waste of filler metals.

What will be an ideal response?

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Answer the following statement(s) true (T) or false (F)

1. The relation of direction of motion of the wire in a field to direction of induced emf can be determined by Fleming’s right-hand rule. 2. An alternate way of stating Lenz’s law is that an induced voltage or current opposes a change of magnetic field. 3. When mechanical energy must be expended to rotate a coil within a magnetic field and cut the lines of flux, this energy is provided by engines called flux movers. 4. Not all generators are designed to maintain coils within a magnetic field but, instead, hold a magnet within a rotating coil. 5. The induction process in rotating machines produces AC, and if direct current (DC) is needed, it can be obtained from AC by using rectifiers.

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A technician finds that a wire in an electric furnace is brittle and discolored from overheating. The technician should:

A) Cut off the overheated end, strip the remaining wire end, and reinstall it. B) Cut off the overheated end and splice on a short length of similar wire using high-quality electrical tape. C) Replace the entire wire. D) Cut off the overheated end and add a short length of similar wire using a wire nut.

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