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A bonded strain gauge is one that is

  • A.made in two halves which are bonded together after winding
  • B.bonded to a temperature-compensating element in the same package
  • C.cemented to the surface of the member under test
  • D.wound as a free wire between two supports within a housing

Answer: C

The cement transmits the strain of the surface to the gauge, so the gauge undergoes the same strain as the material beneath it. An unbonded gauge instead has wires stretched between insulating supports and is used in transducers rather than on structures.

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