Sensors and Transducers, Quiz 1

A piezo-electrical crystal generates voltage when subjected to ____ force.

• (A) Electrical

• (B) Mechanical

• (C) Gravity

• (D) All of the above

It is the ability of the sensor to indicate the same output over a period of time for a constant input.

• (A) Stability

• (B) Resolution

• (C) Error

• (D) Impedance

Which of the following form the basis of Electrical domain?

• (A) Current

• (B) Resistance

• (C) Inductance

• (D) All of the above

Thermistor is a transducer. Its temperature coefficient is

• A. Negative

• B. Positive

• C. Zero

• D. None of these

Strain gauge is a

• A. Active device and converts mechanical displacement into a change of resistance

  
  

• B. Passive device and converts electrical displacement into a change of resistance

• C. Passive device and converts mechanical displacement into a change of resistance

• D. Active device and converts electrical displacement into a change of resistance

The transducer used for the measurements is/are

• A. Resistance temperature detectors

• B. Thermistors

• C. Ultrasonic

• D. All of the above

For the measurement of pressure the instruments used can be

• A. Mechanical

• B. Electro-mechanical

• C. Electronic

• D. All of these

With the increase in the intensity of light, the resistance of a photovoltaic cell

• A. Increases

• B. Decreases

• C. Remains same

• D. None of these

The linear variable differential transformer transducer is

• A. Inductive transducer

• B. Non-inductive transducer

• C. Capacitive transducer

• D. Resistive transducer

The ability to give same output reading when same input value is applied repeatedly is known as

• (A) Stability

• (B) Repeatability

• (C) Accuracy

• (D) Sensitivity