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List - I (Transducers)List - II (Measured Quantity)
(a) Capacitive transducer(i) Temperature
(b) Thermocouple(ii) Power
(c) Bourdon gauge(iii) Displacement
(d) Solar cell(iv) Pressure

Codes :
(a) (b) (c) (d)

  • A.(i) (iii) (ii) (iv)
  • B.(iii) (i) (iv) (ii)
  • C.(ii) (iv) (i) (iii)
  • D.(iv) (i) (iii) (ii)

Answer: B

The matching is (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii), which is option (B). A capacitive transducer measures displacement through a change in plate spacing or overlap. A thermocouple measures temperature. A Bourdon gauge measures pressure through the straightening of a curved tube. A solar cell delivers electrical power from light. Options (A), (C) and (D) each swap at least two pairs, for example pairing the thermocouple with power or the Bourdon gauge with temperature.

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