At about what temperature does oxygen combine with the nitrogen in the air to form NOx?

A) 1500°F B) 500°F C) 2500°F D) 750°F


C

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When testing valve spring tension, within what percentage of the original tension specification should the measurement be?

A. 5 percent B. 10 percent C. 15 percent D. 20 percent

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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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The ponds in which catfish are raised are made such that producers can move through them with large nets, called ____________________, during harvesting.

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

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Conductance testers are used to test all of the following EXCEPT_________.

A. current flow B. batteries C. starters D. generator output

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