Meters Flashcards
(10 cards)
A voltmeter must be _______.
A. Connected in a series
B. Places near a magnetic field
C. Connected in Parallel
D. Used in a d-energized circuit
C. Connected in parallel
To increase the range of an ammeter, a _______ is added to the circuit.
A. Shunt resistor
B. Fixed coil
C. Series resistance
D. Moving coil
A. shunt resistor
To increase the range of a voltmeter, a _______ is added to the circuit.
A. Fixed resistor
B. Series multiplier resistor
C. Shunt resistor
D. Series and parallel resistance
B. series multiplier resistor
Which of the following meters is used to measure resistance of a circuit?
A. Ohmmeter
B. Voltmeter
C. Wattmeter
D. Ammeter
A. Ohmmeter
What does it mean if the letters ‘OL’ appear on a DMM display?
A. The current in the circuit is too low to register
B. The meter is registering negative voltage
C. The meter is “out of limits”
D. The better in the meter is running low
C. The meter is ‘Out of Limits’
What effect would a reverse polarity reading have on an analog meter?
A. It would cause the pointer to exceed the hugest number on the range.
B. It would cause the pointer to fall below zero.
C. It would cause the display to show numeral 1.
D. It would cause the display to start flashing
B. It would cause the pointer to fall below zero.
If the meter indicates an ‘Out of Limits’, you should ____.
A. Move the range switch to a lower scale setting
B. Increase the current to the circuit
C. Disconnect the meter from the circuit
D. Use the autoranging feature to reduce the current
C. Disconnect the meter from the circuit
A(n) _____ is a type of bypass that provides a parallel path for current flow when using an ammeter.
A. Series multiplier
B. Coil spring
C. Shunt resistor
D. Autorange
C. shunt resistor.
On an ohmmeter, the full-scale deflection value is _____ of the meter face.
A. 0 ohms at the right side
B. 0 ohms at the left side
C. Infinite resistance at the right side
D. Infinite resistance at the left side
A. 0 ohms at the right side
Do not apply power to the component or meter circuit when using a(n)
______.
A. Ammeter
B. Ohmmeter
C. Voltmeter
D. Wattmeter
B. ohmmeter.