Explain why you should zero an analog type ohmmeters every time you change scales or make a measurement
What will be an ideal response?
The ohmmeter uses in internal battery to create the current that makes the meter movement move. Since a battery slowly goes dead over time, and because each range in the meter uses different circuits of internal resistance, you must always zero an analog
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System grounding relates to the _____.
a. EGCs b. systems over 250 volts c. service-entrance equipment d. rod and pipe electrodes
Which of the following is needed in a reference oscillator to produce many frequencies?
A. Low-pass filter B. Varactor diode C. Phase comparator D. One crystal
A part of a circle is called a(n) ____.
A. curve B. round C. rounded corner D. arc
Which of the following is not true regarding feature control symbols?
A. The order of data in a feature control frame is important. B. The first element is the feature control symbol. C. Various feature control elements are separated by //. D. Datum references are listed in order from left to right.