Proximity and Temperature Sensors Quiz

During a science experiment, Justin is using a proximity sensor to determine if an object is nearby. What is the primary function of this sensor?

• To measure temperature

• To detect the presence or absence of an object

• To control electrical circuits

• To emit sound waves

During a science fair, Jomar is demonstrating different types of sensors. He wants to know which type of proximity sensor detects metal objects using electromagnetic induction.

• Ultrasonic Proximity Sensors

• Inductive Proximity Sensors

• Capacitive Proximity Sensors

• Infrared Proximity Sensors

During a science project, Justin is exploring different types of sensors for detecting hand proximity in touchless faucets. What type of sensor should he consider for his project?

• Magnetic Proximity Sensors

• Infrared (IR) Proximity Sensors

• Photoelectric Proximity Sensors

• Capacitive Proximity Sensors

In a robotics class, Jomar is learning about the benefits of using proximity sensors in automated systems. Which of the following is a benefit of using proximity sensors?

• Increased wear and tear

• Non-contact detection

• Slower response time

• Higher maintenance costs

During a science experiment, Jomar and Justin were discussing how thermocouples work. Jomar asked, 'What principle do thermocouples operate on?'

• Gas pressure changes

• Infrared radiation detection

• Voltage generation based on temperature difference

• Change in resistance

In a laboratory setting, Justin is trying to determine which type of temperature sensor is known for its precision. He has several options to consider.

• Bimetallic Temperature Sensors

• Thermistors

• Gas Thermometers

• Resistance Temperature Detectors (RTDs)

During a science experiment, Jomar and Jeovani were discussing the working principle of a thermistor. They wondered how it functions in relation to temperature changes.

• Pressure changes in a gas

• Expansion of mercury

• Change in resistance with temperature

• Change in voltage with temperature

During a science fair, Jeovani is demonstrating different types of sensors. He explains that one type uses sound waves for detection. Which type of proximity sensor is he referring to?

• Photoelectric Proximity Sensors

• Capacitive Proximity Sensors

• Inductive Proximity Sensors

• Ultrasonic Proximity Sensors

During a science project, Justin and Xerlyne are exploring different applications of infrared sensors. They come across several potential uses. What is a common application of infrared sensors?

• Detecting metal parts on conveyor belts

• Detecting objects in tight spaces

• Monitoring liquid levels in a container

• Non-contact temperature measurement

During a science class, Jomar and Xerlyne were discussing different types of temperature sensors used in clinical thermometers. Jomar asked, "Which type of temperature sensor is less common now for clinical thermometers?"

• Infrared Sensors

• Thermistors

• Mercury-in-Glass Thermometers

• Bimetallic Temperature Sensors