WorksheetsUnit-5 Classification of transducers
Total questions: 12
Worksheet time: 9mins
Potentiometer transducers are used for the measurement of
Pressure
Displacement
Humidity
Both (a) and (b)
Thermistor is a transducer. Its temperature coefficient is
positive
negative
zero
fraction
Strain gauge is a
Active device and converts mechanical displacement into a change of resistance
Passive device and converts electrical displacement into a change of resistance
Passive device and converts mechanical displacement into a change of resistance
Active device and converts electrical displacement into a change of resistance
Constantan is used for measurement of dynamic strains. It is an alloy of
Copper and Aluminium
Nickel and molybdenum
Nickel and chromium
Copper and nickel
The linear variable differential transformer transducer is
Capacitive
resistive
Inductive
Active
6. If at one end, the two wires made of different metals are joined together then a voltage will get produced between the two wires due to difference of temp between the two ends of wires. This effect is observed in
Thermocouples
Thermistor
RTD
Ultrasonics
With the increase in the intensity of light, the resistance of a photovoltaic cell
no change
increases
Decreases
become zero
How do passive transducers develop electrical signals?
using a transformer
using internal source
using external source
using a diode
In electromagnetic based transduction measurand is ___________
converted into mechanical force
converted into electromotive force
converted into chemical force
converted into physical force
Photovoltaic transduction involves ___________
voltage generation heat
voltage generation through sound
voltage generation through light
voltage generation current
Electrical transducers are ________
small and non-portable
large and non-portable
small and compact
large and portable
Mechanical transducers cause ________
power loss
hysteresis loss
eddy current loss
frictional loss
