Robotics and Ultrasonic Sensors Quiz

What type of tasks are robots currently used for?

• Creative writing

• Human-like interactions

• Simple actions in industries and homes

• Complex decision-making tasks

What is an example of a robot used in homes?

• Robotic chef

• Robotic vacuum cleaner

• Robotic pet

• Robotic gardener

What type of sensors do most robots use to detect obstacles?

• Optical sensors

• Thermal sensors

• Ultrasonic sensors

• Infrared sensors

How do ultrasonic sensors calculate the distance to an obstacle?

• By detecting temperature changes

• By calculating the time between sound emission and return

• By measuring the light reflection

• By using GPS coordinates

What is the approximate speed of sound in air used for calculations?

• 400 m/s

• 500 m/s

• 340 m/s

• 300 m/s

Which pin is used to activate the ultrasonic pulse in the HC-SR04 sensor?

• Signal

• Echo

• Power

• Trig

What is the function of the Echo pin in the HC-SR04 sensor?

• To emit the ultrasonic pulse

• To receive the reflected sound wave

• To power the sensor

• To connect to the internet

What is the main material of the Kit Chassi 2WD for Arduino?

• Wood

• Metal

• Plastic

• Acrylic

How many wheels does the Kit Chassi 2WD have?

• Two rubber wheels and one universal wheel

• Three rubber wheels

• Four rubber wheels

• Two universal wheels

What type of motors are used in the Kit Chassi 2WD?

• DC motors

• Servo motors

• Stepper motors

• AC motors