Sensor Detection Quiz

Which sensor detects the presence of an object without making physical contact?

• Pressure Sensor

• Proximity Sensor

• Microphone Sensor

• Tilt Sensor

A Light Dependent Resistor (LDR) changes its resistance based on:

• Sound intensity

• Light intensity

• Temperature

• Pressure

Which device is commonly used by law enforcement to detect alcohol levels in a person’s breath?

• Humidity Sensor

• Flow Sensor

• Alcohol Sensor

• IR Sensor

When installing a weather monitoring system, which two sensors are most essential?

• Tilt Sensor and Position Sensor

• Temperature Sensor and Humidity Sensor

• Flow Sensor and Microphone Sensor

• Touch Sensor and Color Sensor

A PIR sensor detects:

• Magnetic fields

• Motion using infrared light

• Humidity levels

• Weight of objects

Which sensor converts applied force into an electrical signal?

• Strain and Weight Sensor

• Light Sensor

• Proximity Sensor

• Flow Sensor

In an ultrasonic sensor, the primary working principle is based on:

• Electromagnetic waves

• Sound waves above the audible range

• Touch sensitivity

• Color wavelength detection

Which sensor would be most appropriate for detecting gas leaks in an industrial plant?

• Alcohol Sensor

• Smoke and Gas Sensor

• Pressure Sensor

• Color Sensor

A Position Sensor is primarily used to:

• Measure temperature changes

• Detect the movement or location of an object

• Measure the force applied to an object

• Convert sound into electrical signals

In a flow meter installation, what is the main function of the Flow Sensor?

• Detecting colors in liquid

• Measuring or regulating gas or liquid flow rate

• Measuring weight of solid materials

• Detecting human touch