List of top Instrumentation Engineering Questions on Transducers for industrial instrumentation asked in TS PGECET

Force measurement using strain gauges is based on the principle of
Piezoelectric transducers are best suited for measurement of
An LVDT produces an output of \(5\,\mathrm{mV/mm}\) sensitivity. For an excitation of \(10\,\mathrm{V}\) and displacement of \(2\,\mathrm{mm}\), the output voltage is
Semiconductor strain gauges typically have much higher gauge factors than metallic strain gauges, primarily due to
Force measurement using strain gauges is based on the principle of
An LVDT produces an output of \(5\,\mathrm{mV/mm}\) sensitivity. For an excitation of \(10\,\mathrm{V}\) and displacement of \(2\,\mathrm{mm}\), the output voltage is
Semiconductor strain gauges typically have much higher gauge factors than metallic strain gauges, primarily due to
Piezoelectric transducers are best suited for measurement of
An advantage of dual slope A/D converter is:
If the amplitude is proportional to the core movement, then the output of a Differential Transformer (LVDT) is a:
The thermocouple pair that gives the maximum sensitivity of around 273 K is:
Which of the following meters has the lowest pressure drop for a given range of flow?

Match the device with its working principle:
 

List-1 List-2
a. Bourdon gaugeV. Deformation of element
b. Pirani gaugeI. Thermal conductivity
c. Semiconductor strain gaugeIII. Piezo resistive effect
d. Bi-metallic stripII. Thermal coefficient of expansion
The primary standard instrument used for calibrating vacuum is:
The least suitable transducer for static pressure measurement is:
Poisson’s ratio of a metal is 0.35. Neglecting the piezo resistive effect, the gauge factor of the strain gauge made up of this metal is:
The output of LVDT with input mechanical motion of 10 Hz and excitation frequency of 400 Hz will contain frequencies:
Among bonded metal strain gauges, the foil type is more popular than wire type because:
Pirani gauge operation is based on the following principle:

Match the instruments with the parameters they measure: 
 

List-1InstrumentList-2 (Parameter)
AAutocollimeter\( \text{Angular error} \)
BHygrometer\( \text{Humidity} \)
CNephelometer\( \text{Density} \)
DMass spectrometer\( \text{Molecular weight} \)
A psychrometric chart is used to determine
Gas chromatography is used for
A shaft encoder attached to a DC motor has a sensitivity of 500 pulses per revolution. A frequency meter connected to the encoder output indicates 5500 Hz. The speed of the motor in rpm is: