Electrical Measurements and Instrumentation MCQs (Part-14)

Which device is used to measure the flow of liquids or gases in a pipe?

A Thermometer
B Strain gauge
C Flow meter
D Pressure sensor

What principle does a magnetic flow meter work on?

A Faraday’s law of induction
B Kirchhoff’s law
C Coulomb’s law
D Ohm’s law

What is the primary use of a displacement sensor?

A Measure temperature
B Measure speed
C Measure position
D Measure force

Which type of sensor is commonly used to measure the speed of rotating objects?

A Speedometer
B Tachometer
C Accelerometer
D Strain gauge

What is the primary function of a velocity sensor?

A Measure speed
B Measure force
C Measure displacement
D Measure pressure

What is a common application of a flow meter?

A Temperature control
B Energy conservation
C Fluid flow measurement
D Electrical resistance

What type of sensor is used to detect angular displacement?

A Tachometer
B Rotary encoder
C Strain gauge
D Pressure sensor

How do optical flow meters measure flow?

A Using temperature variation
B Using pressure sensors
C Using vibration
D Using light reflection

Which type of sensor is typically used in automotive speedometers?

A Tachometer
B Displacement sensor
C Speedometer
D Strain gauge

What kind of measurement does a capacitance based displacement sensor provide?

A Linear displacement
B Pressure
C Temperature
D Velocity

What is typically measured by a pitot tube?

A Fluid pressure
B Flow rate
C Temperature
D Flow velocity

How does a speed sensor detect speed?

A By measuring current
B By detecting frequency changes
C By measuring voltage drop
D By detecting temperature changes

Which type of flow meter is suitable for measuring the flow of viscous liquids?

A Magnetic flow meter
B Rotameter
C Coriolis flow meter
D Ultrasonic flow meter

What does a Doppler flow meter measure?

A Fluid temperature
B Fluid pressure
C Fluid density
D Fluid velocity

What principle does a turbine flow meter operate on?

A Coriolis effect
B Mechanical rotation
C Magnetic induction
D Thermal conductivity