Strain Gauge Measurement Technique

This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Strain Gauge Measurement Technique”.

1. Strain gauge measurement involves __________
a) Wheatstone bridge
b) Kelvin bridge
c) De Sauty’s bridge
d) Anderson bridge

2. Load cell is used for the measurement of _______
a) area
b) force
c) mass
d) length

3. Strain is a _______
a) fractional change in volume
b) fractional change in area
c) fractional change in length
d) fractional change in height

4. Semiconductor strain gauge uses _______
a) rectifier circuitry
b) power electronics circuitry
c) ordinary bridge circuit
d) bridge circuit with temperature compensation

5. A semiconductor strain gauge consists of how many dummy gauges?
a) 2
b) 4
c) 6
d) 10

6. Metals in strain gauge construction have _______
a) non-linear temperature coefficient
b) linear temperature coefficient
c) tangential temperature coefficient
d) exponential temperature coefficient

7. A Wheatstone bridge has _______
a) low sensitivity
b) zero sensitivity
c) high sensitivity
d) infinite sensitivity

8. Load cells are calibrated such that _______
a) force varies inversely with resistance
b) force varies as the square of resistance
c) force remains constant with resistance
d) force varies directly with resistance

9. Load cell is sensitive to minute strains.
a) True
b) False

10. Mass of only about 20 kg can be measured by a load cell.
a) True
b) False

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