Quiz on C Electronics

Which of the following is an example of an active transducer?

• Thermocouple

• Strain gauge

• Potentiometer

• LVDT

Which of the following is a passive sensor?

• Thermocouple

• Photodiode

• Strain gauge

• Piezoelectric sensor

Potentiometer transducers are used for the measurement of

• A. Pressure

• B. Displacement

• C. Humidity

• D. Both (a) and (b)

The linear variable differential transformer transducer is

• A. Inductive transducer

• B. Non-inductive transducer

• C. Capacitive transducer

• D. Resistive transducer

Hall Effect sensors are used in

• (A) Flow meter

• (B) Fuel level indicator

• (C) Both (A) and (B)

• D) None of the above

Turbine meters are generally preferred for

• A. Low-viscosity and high flow measurements

• B. High viscosity and low flow measurements

• C. High viscosity and high flow measurements

• D. Low viscosity and low flow measurements

Which of the following is a passive transducer?

• Strain gauge

• Photovoltaic transducer

• Piezoelectic transducer

• Thermocouple

Which of the following transducers is used for pressure measurement?

• Thermistor
  

• Bourdon tube
  

• Photodiode
  

• Strain gauge

The output of an active transducer is:

• A change in resistance
  

• A direct electrical signal
  

• A mechanical displacement
  

• A magnetic field

Which of the following statements about active transducers is true?

• They require an external power source to operate
  

• They do not require an external power source and generate their own electrical output
  

• They store energy instead of converting it
  

• They do not interact with the physical environment