Related Questions

Self generating type transducers are ___________ transducers.
A Active
B Passive
C Secondary
D Inverse
The materials which become polarized on the application of mechanical stress are called piezoelectric.
A True
B False
Piezoelectric materials serve as a source of ________ .
A Resonant waves
B Musical waves
C Microwaves
D Ultrasonic waves
Piezoelectric quartz crystal resonators find application where
A Signal amplification is required
B Rectification of the signal is required
C Signal frequency control is required
D Modulation of signal is required
The piezoelectric effect in a crystal is ___________
A A voltage developed because of mechanical stress
B A change in resistance because of temperature
C A change in frequency because of temperature
D None of the above
Piezoelectric is a material
A Whose properties is midway between the constituent materials
B Which gets polarised, when stressed
C In which magnetising force reduces when current flowing through it is in-cresed
D Which changes dimensions due to applied field
The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as
A Active transducer
B Primary sensor
C Passive transducer
D Self generating transducer
Capacitive transducers are normally employed for___________ measurements.
A Static
B Dynamic
C Transient
D Both static and dynamic
The transducers that converts the input signal into the output signal, which is a discrete function of time is known as ___________ transducer.
A Active
B Analog
C Digital
D Pulse
Piezo – electric transducers work when we apply _____________ to it.
A Mechanical force
B Vibrations
C Illuminations
D Heat

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