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MEASUREMENT AND INSTRUMENTATION

Measurement and Instrumentation
To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to

 ± 20%
 ± 7.5 %
 ± 1.5%
 ± 2.5%

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as

 (400 ±5) A
 (400 ± 1) A
 (400 ± 2.24) A
 (400 ± 3) A

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Measurement and Instrumentation
A first order instrument is characterized by

 Static sensitivity and time constant
 Static sensitivity, damping coefficient and natural frequency of oscillations
 Time constant only
 Static sensitivity and damping coefficient

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Measurement and Instrumentation
The ratio of change in output to the change in the input is called

 sensitivity
 repeatability
 resolution
 precision

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Measurement and Instrumentation
The difference between the indicated value and the true value of a quantity is

 Gross error
 Absolute error
 Relative error
 Dynamic error

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