The high-voltage, low-amperage current supplied to welding machines by commercial power lines is known

as _____.

a. primary current
b. commercial current
c. ordinary current
d. secondary current


a

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

1. Electrical contacts must never be permitted to open or close slowly. 2. A bimetal strip is often formed into a spiral. 3. The amount of voltage produced by a thermocouple is generally in the order of megavolts. 4. A thermistor with a negative temperature coefficient will exhibit an increase of resistance with an increase in temperature. 5. One common method of sensing temperature is by the increase of pressure of some chemicals.

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There are two basic methods for determining the locked-rotor current (____ current) of a squirrel-cage induction motor depending on the information available.



a. starting
b. running
c. stopping
d. nameplate

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The ____________________ is turned on if emissions increase _________ over the federal test parameter (FTP) for that vehicle.

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

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In a car, the horsepower rating is 39.6, and the bore is 3.518 inches. How many cylinders are there?

A. 5 B. 6 C. 7 D. 8

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