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Measurement and Instrumentation

Measurement and Instrumentation
Relative error is same as

 true error.
 ratio of absolute error and true value.
None of these
 absolute error.

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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
 3.33 N
 0.15 N

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Measurement and Instrumentation
Which of the two have same dimensions?

 Angular velocity and angular frequency
 Force and strain
 Force and stress
None of these

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Measurement and Instrumentation
A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

  - 597 W.
 - 795 W.
 + 597 W.
 + 795 W.

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Measurement and Instrumentation
A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec?

 30o.
 63.25o.
 105.6o.
 150o.

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Measurement and Instrumentation
Ryall crest voltmeter is used for measurement of

High AC voltage
AC voltage of any form
Low frequency voltage
High DC voltage

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