Define annealing.

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Annealing, frequently referred to as full annealing, involves heating the structure of a metal to a high enough temperature, slightly above Ac3, to turn it completely austenitic. After soaking to equalize the temperature throughout the part, it is cooled in the furnace at the slowest possible rate. On cooling slowly the austenite transforms to ferrite and pearlite. The metal is now its softest with small grain size, good ductility, excellent machinability, and other desirable properties.

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Calculate the total diameter of the TFN conductors.

You have a Rigid PVC conduit (RNC), schedule 80, that is required to hold the following conductors; six -18AWG TFN, ten -18AWG XFF and four -16AWG XF.

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To ensure full potency, chemical agents for sanitation should be purchased:

What will be an ideal response?

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The recommended minimum pressure for water coming from a fire hydrant is:

A. 115 psi. B. 80 psi. C. 50 psi. D 20 psi.

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What regulates body functions such as growth, metabolism, and the reproductive cycle?

A. hormones B. amino acids C. antibiotics D. vitamins

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