Automatic Railway Barrier

What is the primary function of an automatic railway track barrier using Arduino?

• To control the opening and closing of barriers at railway crossings

• To decorate the railway crossing

• To measure the speed of trains

• To play music when a train approaches

Which sensor is used in the project to detect the approaching train?

• Ultrasonic sensor

• Temperature sensor

• IR sensor

• Light sensor

What role does the Arduino microcontroller play in the automatic railway track barrier system?

• It decorates the barrier

• It controls and commands the barrier based on sensor inputs

• • It provides power to the barrier

• It cleans the railway tracks

Which component is used to move the barrier arm in the project?

• Stepper motor

• DC motor

• Servo motor

• Brushless motor

How does the IR sensor work in the automatic railway track barrier system?

• By measuring temperature

• By detecting infrared light emitted by the train

• By detecting sound waves

• By sensing electrical currents

What happens when the IR sensor detects an approaching train?

• • The barrier arm opens

• The barrier arm closes

• The barrier arm starts flashing lights

• The barrier arm makes a sound

What does the Arduino microcontroller do with the data received from the IR sensor?

• It ignores the data

• It sends the data to a computer

• It uses the data to power the barrier

• It processes the data to control the servo motor

What action does the servo motor take when it receives a signal from the Arduino microcontroller?

• It moves the barrier arm up or down

• It starts the train

• It plays music

• It lights up the barrier

Which function in the Arduino IDE is used to set the position of the servo motor?

• • analogRead()

• digitalWrite()

• servo.write()

• pulseIn()

What educational benefit does building an automatic railway track barrier provide to students?

• • Understanding the basics of programming, sensors, and robotics principles

• Learning how to bake a cake

• Learning to play a musical instrument

• Studying human anatomy