7000+ Electronics and Instrumentation MCQ Questions & Answers - 1

Question: 1

Which of the following can act as an inverse transducer?

(A) Bimetal strip

(B) Piezoelectric crystal

(C) Strain Gauge

(D) LVDT

Question: 2

Which of the following is not an advantage of semiconductor gauges as compared to conventional strain gauges

(A) Smaller size

(B) High fatigue life

(C) Excellent hysteresis characteristics

(D) Least sensitive to temperature changes

Question: 3

The instrument servomechanism is actually an instrument system made of component, which are

(A) Exclusively primary sensing elements

(B) Exclusively passive transducers

(C) Exclusively active transducers

(D) Combination of passive transducers and active transducers

Question: 4

A rotameter works on the principle of variable

(A) Area

(B) Resistance

(C) Length

(D) Pressure

Question: 5

Which one of the following is a passive transducer?

(A) LVDT

(B) Photovoltaic cell

(C) Thermocouple

(D) Piezoelectric