Process Control and Instrumentation
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

Increase
No change
Exponential decrease
Decrease

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Process Control and Instrumentation
Select the correct statement from the following.

The phase lag of a pure time delay system decreases with increasing frequency
The amplitude ratio of a pure capacity process is inversely proportional to frequency
The frequency response of a pure capacity process is unbounded
The amplitude ratio of a pure time delay system increases with frequency

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