Which of the following symbols is normally used to indicate a separate pilot light?

a. A diamond with a large R and small P
b. A diamond with a large P and small L
c. A diamond with a large S and small P
d. A diamond with a large R


b. A diamond with a large P and small L

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The symbol for a limit switch illustrates a ball float.

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

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Injuries from falling/flying objects _____.

a. only occur when there are grinding or cutting operations in the vicinity b. can be caused by improperly stacked materials c. are uncommon on construction sites d. can be prevented by walking under scaffolding for protection

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All of the following formulas are used to convert between phosphorus/phosphoric acid and

potassium/potash when calculating element/oxide in fertilizer grades EXCEPT ____.

a. P2O5 ? 0.44 = P b. K ? 1.2 = K2O c. K2O ? 0.83 = K d. P ? 2.29 = P2O5 e. MC = P

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An astable multivibrator:

A) uses RC circuits to determine operating frequency. B) has no stable state. C) is a free running multivibrator. D) All of the above

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