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Strain Measurement MCQs

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

Question 1
Measurements & InstrumentationStrain Measurement

A strain gauge is commonly used to measure strain through a change in?

  • AElectrical resistance
  • BMagnetic permeability only
  • COptical frequency only
  • DBattery voltage only
Report an error
Correct Answer: A. Electrical resistance
Explanation: Mechanical strain changes the gauge's dimensions and therefore its electrical resistance.
Reference: Standard measurements and instrumentation: strain measurement
Question 2
Measurements & InstrumentationStrain Measurement

The gauge factor of a resistive strain gauge is defined as?

  • AFractional change in resistance divided by strain
  • BStrain divided by resistance
  • CResistance multiplied by strain
  • DVoltage divided by current
Report an error
Correct Answer: A. Fractional change in resistance divided by strain
Explanation: Gauge factor GF=(ΔR/R)/ε, where ε is mechanical strain.
Reference: Standard measurements and instrumentation: strain measurement