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Delmar unit 9 questions and answers certified 2024
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Delmar unit 9 questions and answers certified 2024
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Delmar unit 9The d'Arsonval movement is one of the most common ________ meter
movements. - correct answer ✔Analog
A(n) ________ can be connected directly across the power source because it
has a very high resistance connected in series with the meter movement. -
correct answer ✔voltmeter
An ammeter has a typical impedance of less than ________ ohm(s). - correct
answer ✔0.1
What type of ohmmeter is used measure low values of resistance? - correct
answer ✔shunt
________ are used to detect spike voltages, or currents of short duration, or
sudden drops in voltage, current, or power. - correct answer ✔recording
meters
An ammeter shunt is a _____ -resistance device. - correct answer ✔low
A multirange ammeter operates on more than one range by connecting the
meter movement to different shunts. - correct answer ✔True
A shunt device that remains connected to the meter movement and thereby
eliminates contact resistance problems is the _______________ shunt. -
correct answer ✔aryton
What is measured by the Wheatstone bridge? - correct answer ✔resistance
, What meter measures an amount of voltage during a period of time and
produces a two-dimensional image? - correct answer ✔oscilloscope
The low-impedance voltage tester is most suitable for use in _____. - correct
answer ✔high power circuits
When the connection of a meter to the circuit changes the entire circuit
operation, this is known as the _____ effect. - correct answer ✔loading
What meter must NEVER be connected to a circuit when the circuit power is
turned on? - correct answer ✔ohmmeter
The series ohmmeter is used to measure _____ values of resistance. - correct
answer ✔high
The resistors are connected in parallel with the meter on some ranges and in
series for other ranges when a(n) _____ is used. - correct answer ✔aryton
shunt
A(n) _____ ammeter operates on more than one range by connecting the
meter movement to different shunts. - correct answer ✔multirange
An ammeter is connected in _____ with the load to permit the load to limit
current flow. - correct answer ✔series
A low-resistance device used to conduct most circuit current away from the
meter movement is an ammeter _____. - correct answer ✔shunt
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