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Measurement and Instrumentation

Measurement and Instrumentation
A transducer measures a range of 0 – 200 N force with a resolution of 0.15 percent of full scale. What is the smallest change which can be measured by this transducer ?

 0.3 N
 6.66 N
 0.15 N
 3.33 N

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Measurement and Instrumentation
The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is

 ± 2.8%
 ± 4%
 ± 3%
 ± 6%

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Measurement and Instrumentation
When using ohmmeter, applied voltage is to be disconnected from the circuit because

None of these
Voltage source will increase resistance
Current will decrease resistance
The ohmmeter has its own internal battery

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Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

 400∠-90° ohm.
 300∠90° ohm.
 600∠-150° ohm.
 150∠30° ohm.

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Measurement and Instrumentation
The household energymeter is

An indicating instrument
An integrating instrument
A recording instrument
None of the listed here

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Measurement and Instrumentation
An induction wattmeter can be used for

Both DC and AC
Any of the listed here
Ac only
Dc only

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