WBUT 2012 SENSORS AND TRANSDUCERS [EI-401] Question Paper

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CS/B.TECH (EIE-New)/SEM-4/EI-401/2012

2012

SENSORS AND TRANSDUCERS

Time Allotted : 3 Hours                                    Full Marks : 70

The figures in the margin indicate full marks.

Candidates are required to give their answers in their own words

as far as practicable.

GROUP – A

(Multiple Choice Type Question)

1.       Choose the correct alternatives for any ten of the following:
                                                                                               10 x 1 = 10

          i)        The gauge factor is defined as

                   a)       ∇LLRR Image removed.                                  b)       ∇RRLL Image removed.

                   c)       ∇RRDD Image removed.                                  d)       ∇RRPP Image removed.

          ii)       The principle of operation of LVDT is based on

                   a)       self inductance               b)       mutual inductance

                   c)       reluctance                      d)       permeance

          iii)      Load cell measures

                   a)       force                               b)       temperature

                   c)       strain                             d)       pressure

          iv)      Self generating type transducers are ………………                             transducers

                   a)       active                              b)       secondary

                   c)       passive                           d)       inverse.

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