California Robotics Technician Certification
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2025
Q&A | Instant Download Pdf
1. What type of sensor is commonly used to detect object proximity in
robotics?
A. Infrared sensor
B. Ultrasonic sensor
C. Capacitive sensor
D. Gyroscopic sensor
Rationale: Capacitive sensors detect changes in capacitance when objects
approach, ideal for non-contact proximity detection.
2. Which communication protocol is best for long-distance industrial robot
networking?
A. SPI
B. Ethernet/IP
C. I²C
D. CAN
Rationale: Ethernet/IP is widely used in industrial automation for high-
speed, long-distance communication.
3. What does “SLAM” stand for in robotics?
,A. Spatial Laser And Mapping
B. Simultaneous Localization and Mapping
C. Sensor-Led Autonomous Mapping
D. Systematic Localization and Mapping
Rationale: SLAM refers to robots mapping an unknown environment while
tracking their position.
4. A servo motor in robotics is primarily used for:
A. Linear motion
B. High-speed continuous rotation
C. Precise angular positioning
D. Heat dissipation
Rationale: Servo motors allow accurate angular positioning with feedback
control.
5. What safety standard governs industrial robot operations in the U.S.?
A. ISO 9001
B. ANSI/RIA R15.06
C. CE Marking
D. UL 1449
Rationale: ANSI/RIA R15.06 specifies safety requirements for industrial
robot systems in North America.
6. Which controller programming language is standard for industrial
robots?
A. Ladder Logic / IEC 61131-3 languages
B. Python
C. C++
D. MATLAB
Rationale: PLC-based ladder logic and IEC 61131-3 languages are common
in industrial robot controllers.
, 7. What unit measures rotational speed of a robot joint?
A. rpm (revolutions per minute)
B. m/s² (meters per second squared)
C. Newton
D. deg/s (degrees per second)
Rationale: Degrees per second is a direct unit for angular velocity in robot
joints.
8. In robotics, PID control is used for:
A. Logical decision-making
B. Regulating motor speed and position
C. Mapping environments
D. Camera image processing
Rationale: PID loops adjust drive output to maintain desired speed or
position in motion control.
9. Which actuator converts electrical energy into linear motion?
A. Linear actuator
B. Servo motor
C. Hydraulic rotary actuator
D. Piezoelectric sensor
Rationale: Linear actuators produce straight-line movement from electrical
input.
10. A robot's workspace refers to:
A. The programming interface
B. All positions the robot’s end effector can reach
C. The power supply area
D. The control cabinet
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2025
Q&A | Instant Download Pdf
1. What type of sensor is commonly used to detect object proximity in
robotics?
A. Infrared sensor
B. Ultrasonic sensor
C. Capacitive sensor
D. Gyroscopic sensor
Rationale: Capacitive sensors detect changes in capacitance when objects
approach, ideal for non-contact proximity detection.
2. Which communication protocol is best for long-distance industrial robot
networking?
A. SPI
B. Ethernet/IP
C. I²C
D. CAN
Rationale: Ethernet/IP is widely used in industrial automation for high-
speed, long-distance communication.
3. What does “SLAM” stand for in robotics?
,A. Spatial Laser And Mapping
B. Simultaneous Localization and Mapping
C. Sensor-Led Autonomous Mapping
D. Systematic Localization and Mapping
Rationale: SLAM refers to robots mapping an unknown environment while
tracking their position.
4. A servo motor in robotics is primarily used for:
A. Linear motion
B. High-speed continuous rotation
C. Precise angular positioning
D. Heat dissipation
Rationale: Servo motors allow accurate angular positioning with feedback
control.
5. What safety standard governs industrial robot operations in the U.S.?
A. ISO 9001
B. ANSI/RIA R15.06
C. CE Marking
D. UL 1449
Rationale: ANSI/RIA R15.06 specifies safety requirements for industrial
robot systems in North America.
6. Which controller programming language is standard for industrial
robots?
A. Ladder Logic / IEC 61131-3 languages
B. Python
C. C++
D. MATLAB
Rationale: PLC-based ladder logic and IEC 61131-3 languages are common
in industrial robot controllers.
, 7. What unit measures rotational speed of a robot joint?
A. rpm (revolutions per minute)
B. m/s² (meters per second squared)
C. Newton
D. deg/s (degrees per second)
Rationale: Degrees per second is a direct unit for angular velocity in robot
joints.
8. In robotics, PID control is used for:
A. Logical decision-making
B. Regulating motor speed and position
C. Mapping environments
D. Camera image processing
Rationale: PID loops adjust drive output to maintain desired speed or
position in motion control.
9. Which actuator converts electrical energy into linear motion?
A. Linear actuator
B. Servo motor
C. Hydraulic rotary actuator
D. Piezoelectric sensor
Rationale: Linear actuators produce straight-line movement from electrical
input.
10. A robot's workspace refers to:
A. The programming interface
B. All positions the robot’s end effector can reach
C. The power supply area
D. The control cabinet
