Robotics Motion Control Quizzes: Test Your Knowledge

Question 1

Which of the following is NOT a benefit of using joint space control in robotics?

Accepted Answer

Easier to implement complex path planning for the robot.

Answer

Simpler to implement than Cartesian space control.

Answer

Allows for efficient control of robot joint angles.

Question 2

A robot arm is programmed to move in a straight line from point A to point B in Cartesian space. Which of the following control schemes is MOST suitable for this task?

Accepted Answer

Cartesian space control

Answer

Open-loop control

Answer

Joint space control

Answer

Hybrid control

Question 3

Which of the following is NOT a component of a PID controller?

Accepted Answer

Derivative gain (Kd)

Answer

Integral gain (Ki)

Answer

Feedforward gain (Kf)

Answer

Proportional gain (Kp)

Question 4

A robot arm is experiencing oscillations during motion. Which PID controller parameter should be adjusted to reduce these oscillations?

Accepted Answer

Derivative gain (Kd)

Answer

Proportional gain (Kp)

Answer

Feedforward gain (Kf)

Answer

Integral gain (Ki)

Question 5

What is the primary purpose of a feedforward controller in a motion control system?

Accepted Answer

To compensate for known disturbances and dynamics.

Answer

To provide feedback for error correction.

Answer

To limit the maximum velocity of the robot.

Answer

To adjust the gains of the PID controller.

Question 6

Which of the following is an advantage of using a trajectory planner in robotic motion control?

Accepted Answer

It allows for smooth and predictable robot motion.

Answer

It eliminates the need for feedback control.

Answer

It simplifies the design of the PID controller.

Answer

It reduces the computational burden of the control system.

Question 7

A robot arm is tasked with picking up a delicate object. Which control technique is MOST appropriate for this task?

Accepted Answer

Force control

Answer

Velocity control

Answer

Position control

Answer

Impedance control

Question 8

Which of the following describes the concept of impedance control in robotics?

Accepted Answer

Controlling the relationship between the robot's motion and the forces it experiences.

Answer

Controlling the robot's velocity using feedback from sensors.

Answer

Controlling the robot's position using a pre-defined trajectory.

Question 9

What is the primary difference between position control and velocity control in robotics?

Accepted Answer

Position control aims to maintain a specific position, while velocity control aims to maintain a specific speed.

Answer

Position control uses feedback sensors, while velocity control does not.

Question 10

A robot arm is experiencing excessive vibrations during a high-speed motion. Which of the following techniques is MOST likely to improve the robot's stability?

Accepted Answer

Using a stiffer joint structure

Answer

Reducing the robot's payload

Answer

Using a higher sampling rate for the control system

Answer

Increasing the PID controller gains