Bridge Measurements MCQs

Practice Bridge Measurements MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Measurements & InstrumentationBridge Measurements

A Wheatstone bridge is widely used for precise measurement of?

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Correct Answer: A. Resistance or small resistance changes

Explanation: The Wheatstone bridge compares resistance ratios and is widely used with resistive sensors such as strain gauges.

Reference: Standard measurements and instrumentation: bridge measurements

Question 2

Measurements & InstrumentationBridge Measurements

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Correct Answer: A. P/Q = R/S

Explanation: At balance, no detector current flows and the bridge arm ratios satisfy P/Q=R/S (equivalently PS=QR).

Reference: Standard measurements and instrumentation: bridge measurements