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Primary Sensing Elements & Transducers – 1 – 1

1. A transducer converts :

(a) mechanical energy into electrical energy
(b) mechanical displacement into electrical signal
(c) one form of energy into another form of energy
(d) electrical energy into mechanical form

ANSWER

EXPLANATION

2. An inverse transducer converts :

(a) electrical energy into any other form of energy
(b) electrical energy to light energy
(c) mechanical displacement into electrical signal
(d) electrical energy to mechanical form

ANSWER

EXPLANATION

3. One of the following is an active transducer :

(a) selsyn
(b) strain gauge
(c) photovoltaic cell
(d) photo emissive cell

ANSWER

EXPLANATION

4. One of the following can act as an inverse transducer :

(a) L.V.D.T.
(b) capacitive transducer
(c) piezoelectric crystals
(d) electrical resistance potentiometer

ANSWER

EXPLANATION

5. Strain gauge is a passive transducer and is used for converting mechanical displacement into a change in :

(a) Temperature
(b) Resistance
(c) Inductance
(d) Capacitance

ANSWER

EXPLANATION

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