The expected answers were:
(a)
Transducer |
Actuating Signal |
Tachogenerator
Piezoelectric crystal
Resistance strain guage
Thermocouple
Photo detector
Microphone |
Speed
Mechanical vibration
Pressure
Heat(temperature)
Light (darkness)
Sound pressure |
Transducer |
Application |
Tachogenerator
Piezoelectric crystal
Resistance strain guage
Thermocouple
Photo detector
Microphone |
Speed control
Crystals; pick-up heads
Pressure measurement/control
Temperature measurement control
Remote sensing applications
Public address and similar applications |
The question was on Control Circuits. The question was unpopular.
The performance of the very few candidates that attempted it was reportedly poor.