What is the frequency of an AC waveform that completes 20 cycles per half second?
a. 10Hz
b. 20Hz
c. 30Hz
d. 40Hz
d. 40Hz
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Mechanical engineers are involved in the design, development, testing, and manufacturing machines, robots, tools, gas turbines, internal combustion engines.
a. True b. False
An electrical circuit using 12 volts and having 10 ohms of resistance would have a current of:
A. 1.2 amperes. B. .2 ampere. C. 1 ampere. D. 12 amperes.
Some animals are ________ to classify them into appropriate age groups for show ring classification.
A. Measured for hip height B. Mouthed C. Nose printed
When testing an SCR with an ohmmeter by placing the negative lead on the cathode and the positive lead on the gate results in a low resistance reading, this would indicate that the SCR is __________.
A. good B. bad C. inconclusive D. none of the above