Clocking a meter with a two-foot dial for 45 seconds yields which reading?

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Prepare for the 3rd Year Electrical Trades Qualification (TQ) exam. Use flashcards and multiple choice questions to master the material. Each question comes with hints and explanations to help you succeed. Get set for your qualification!

Multiple Choice

Clocking a meter with a two-foot dial for 45 seconds yields which reading?

Explanation:
Clocking a meter measures how fast the dial accumulates units by timing its movement. The reading after a fixed interval is simply the rate of the dial’s increase multiplied by the elapsed time. Here, after 45 seconds the dial shows 160 units, which means the rate is 160 divided by 45, about 3.56 units per second. Multiply that rate by 45 seconds and you get 160, so the reading is 160. The other numbers would require a different rate or a different timing interval.

Clocking a meter measures how fast the dial accumulates units by timing its movement. The reading after a fixed interval is simply the rate of the dial’s increase multiplied by the elapsed time. Here, after 45 seconds the dial shows 160 units, which means the rate is 160 divided by 45, about 3.56 units per second. Multiply that rate by 45 seconds and you get 160, so the reading is 160. The other numbers would require a different rate or a different timing interval.

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