Measurement and Instrumentation
Deflection method direct measurements are most widely used as these are

 least time consuming.
 most simple.
 most accurate.
 most simple and least time consuming.

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Measurement and Instrumentation
In measurement system, the function of the signal manipulating elements is to

 to perform non liner operation like clipping filtering, chopping and clamping.
 to perform linear operation like addition and multiplication.
 change the quantity under measurement to an analogues signal.
 change the magnitude of the input signal while retaining its identity.

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