IOT_sensors_1

______ proximity sensors detect electrically conductive materials

Types of photo electric sensors

• Ligh beam

• Through beam

• Retroreflective

• Reflective

• Diffuse reflective

_____ type of sensors need temperature compensation mechanism.

• Photo electric

• Laser

• Ultrasonic

• Inductive

RTD uses changes in materials ______ to measure temperature.

Types of pressure sensor. (Choose all correct answers)

• Capacitance

• Inductance

• Resistance

• Strain gauge

• Bourdon tube

______________ Pressure sensors can be used for level measurement

________ transmitter monitors the steam traps and pressure relief valves in the plants.

For steam trap monitoring, sensors have to me equipped with atleast _______ monitoring. (choose all correct answers)

• Pressure

• Level

• Temperature

• Distance

• Sound

Vibration measuring transmitters uses ________ sensors.

Linear Polarization Resistance (LPR): This is an electrochemical technique that measures the ________