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Measurement and Instrumentation

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

 10.
  10√3.
 20.
 20√3.

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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?

 63.25o.
 150o.
 105.6o.
 30o.

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Measurement and Instrumentation
A galvanometer has

Eddy current damping
Air friction damping
Fluid friction damping
Spring coil damping

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Measurement and Instrumentation
The repeat accuracy of an instrument can be judged from its

Dynamic error
Static error
Standard deviation of error
Linearity error

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Measurement and Instrumentation
The function of shunt in an ammeter is to

None of the listed here
By pass the current
Increase the resistance of ammeter
Increase the sensitivity of the ammeter

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Measurement and Instrumentation
Which of the quantity consists of unit as newton-second?

 velocity
 Speed
 Impulse
 Acceleration

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