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Measurement and Instrumentation

Measurement and Instrumentation
On a simple ohmmeter, the 0 Ω mark is _______ of the scale.

Far left
In the middle
Far right
None of the listed here

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Measurement and Instrumentation
Systematic errors are

All of these
 observational errors.
 environmental errors.
 instrument errors.

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Measurement and Instrumentation
A power factor meter has

None of the listed here
One current circuit and one pressure circuit
One current circuit and two pressure circuits
Two current circuit and one pressure circuit

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Measurement and Instrumentation
An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read

 20√3.
  10√3.
 20.
 10.

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Measurement and Instrumentation
Wien bridge is useful for measuring

Low frequency
Medium frequency
High frequency
Very high frequency

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 4.8 μH/radian.
 12.0 μH/radian.
 114.6 μH/radian.
 2.0 μH/radian.

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