Ohio Robotics Technician Practice Exam

Ohio Robotics Technician Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2025|2026 Q&A | Instant Download Pdf

• Which component is primarily responsible for controlling the motion

of a robotic arm?

• Sensor
• Power supply
• Controller
• Actuator

Rationale: The controller interprets commands and sends signals to

actuators to move the robotic arm.

• What type of sensor is used to detect the distance to an object?
• Pressure sensor
• Temperature sensor
• Ultrasonic sensor 1 / 4

• Light sensor

Rationale: Ultrasonic sensors measure the distance to objects by

emitting sound waves and detecting their echo.

3. In robotics, PWM stands for:

• Power Wave Modulation
• Pulse Width Modulation
• Parallel Wire Measurement
• Proportional Width Module

Rationale: PWM is used to control motor speed by varying the width of

electrical pulses.

• Which programming language is commonly used in industrial robotics?
• Python
• JavaScript

C. HTML

D. RAPID

Rationale: RAPID is a specialized programming language used in ABB

industrial robots.

• What is the primary function of a servo motor?
• Generate electricity
• Store energy
• Provide precise position control
• Measure torque 2 / 4

Rationale: Servo motors are used for precise control of angular or

linear position.

• Which type of robotic arm configuration allows for a wide range of

motion in all directions?

• Cartesian

B. SCARA

• Articulated
• Delta

Rationale: Articulated arms have multiple rotary joints, providing high

flexibility and reach.

7. A stepper motor moves in:

• Continuous rotation only
• Discrete steps
• Random motion
• Variable frequency pulses

Rationale: Stepper motors rotate in fixed increments, allowing precise

position control.

• Which of the following is an example of a feedback device?
• Solenoid
• Motor driver
• Encoder
• Power supply 3 / 4

Rationale: Encoders provide feedback on position or speed to the

controller.

• Which type of robot is most suitable for pick-and-place operations in

manufacturing?

• Articulated
• Delta
• Cartesian
• Humanoid

Rationale: Delta robots are optimized for high-speed, repetitive pick-

and-place tasks.

• Which communication protocol is commonly used in industrial

robots?

A. HTTP

B. SMTP

• Modbus

D. FTP

Rationale: Modbus is widely used for industrial device communication.

• What is the main advantage of a SCARA robot?
• 360-degree rotation
• High payload
• High-speed horizontal movement
• Omnidirectional mobility
• / 4