Michigan Robotics Systems Engineer Exam
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
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1. In robotic kinematics, forward kinematics is primarily used to
determine:
A. Joint torques from end-effector forces
B. End-effector position and orientation from known joint
parameters
C. Required motor currents for motion
D. Sensor calibration values
Answer: B
Forward kinematics calculates the position and orientation of a robot’s
end effector based on known joint angles and link parameters. It does
not compute forces or torques—that is the role of dynamics.
2. The Denavit–Hartenberg (D-H) convention is used to:
A. Analyze electrical circuits
B. Optimize robotic vision systems
C. Standardize coordinate frame assignments for robot links
D. Program PLCs
,Answer: C
The D-H convention provides a systematic method for assigning
coordinate frames and deriving transformation matrices, which
simplifies kinematic modeling.
3. A six-degree-of-freedom (6-DOF) industrial robot typically can:
A. Move only in planar space
B. Control position and orientation in 3D space
C. Perform only linear movements
D. Eliminate the need for sensors
Answer: B
A 6-DOF manipulator allows independent control of x, y, z position and
roll, pitch, and yaw orientation.
4. Inverse kinematics involves calculating:
A. Link mass distribution
B. Joint lubrication intervals
C. Joint variables required to achieve a desired end-effector pose
D. Sensor resolution
Answer: C
Inverse kinematics determines the joint angles needed to place the end
effector at a specific position and orientation.
5. The primary advantage of brushless DC motors in robotics is:
A. High mechanical wear
B. High efficiency and low maintenance
, C. Low torque capability
D. Limited speed control
Answer: B
Brushless DC motors eliminate brushes, reducing wear and increasing
efficiency, reliability, and service life.
6. A PID controller consists of which three terms?
A. Position, Integration, Derivation
B. Proportional, Integral, Derivative
C. Power, Impulse, Delay
D. Phase, Impedance, Damping
Answer: B
PID control uses proportional (error-based), integral (accumulated
error), and derivative (rate-of-change) terms to achieve stable and
accurate control.
7. The primary function of an encoder in a robotic system is to
measure:
A. Voltage fluctuations
B. Hydraulic pressure
C. Position or rotational displacement
D. Battery temperature
Answer: C
Encoders convert mechanical motion into electrical signals, enabling
precise measurement of position and speed.
, 8. A common communication protocol used in industrial robotics is:
A. HDMI
B. USB-A
C. EtherCAT
D. VGA
Answer: C
EtherCAT provides high-speed, deterministic communication suitable for
synchronized motion control in robotics.
9. What is singularity in robotics?
A. Maximum load condition
B. A configuration where the robot loses one or more degrees of
freedom
C. Electrical overload
D. Sensor malfunction
Answer: B
Singularities occur when the Jacobian matrix becomes non-invertible,
causing control issues and potential instability.
10. The Jacobian matrix relates:
A. Voltage and resistance
B. Joint velocities to end-effector velocities
C. Temperature and expansion
D. Load to power supply
Answer: B
The Jacobian maps joint space velocities to Cartesian space velocities
and is central in velocity and force analysis.
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. In robotic kinematics, forward kinematics is primarily used to
determine:
A. Joint torques from end-effector forces
B. End-effector position and orientation from known joint
parameters
C. Required motor currents for motion
D. Sensor calibration values
Answer: B
Forward kinematics calculates the position and orientation of a robot’s
end effector based on known joint angles and link parameters. It does
not compute forces or torques—that is the role of dynamics.
2. The Denavit–Hartenberg (D-H) convention is used to:
A. Analyze electrical circuits
B. Optimize robotic vision systems
C. Standardize coordinate frame assignments for robot links
D. Program PLCs
,Answer: C
The D-H convention provides a systematic method for assigning
coordinate frames and deriving transformation matrices, which
simplifies kinematic modeling.
3. A six-degree-of-freedom (6-DOF) industrial robot typically can:
A. Move only in planar space
B. Control position and orientation in 3D space
C. Perform only linear movements
D. Eliminate the need for sensors
Answer: B
A 6-DOF manipulator allows independent control of x, y, z position and
roll, pitch, and yaw orientation.
4. Inverse kinematics involves calculating:
A. Link mass distribution
B. Joint lubrication intervals
C. Joint variables required to achieve a desired end-effector pose
D. Sensor resolution
Answer: C
Inverse kinematics determines the joint angles needed to place the end
effector at a specific position and orientation.
5. The primary advantage of brushless DC motors in robotics is:
A. High mechanical wear
B. High efficiency and low maintenance
, C. Low torque capability
D. Limited speed control
Answer: B
Brushless DC motors eliminate brushes, reducing wear and increasing
efficiency, reliability, and service life.
6. A PID controller consists of which three terms?
A. Position, Integration, Derivation
B. Proportional, Integral, Derivative
C. Power, Impulse, Delay
D. Phase, Impedance, Damping
Answer: B
PID control uses proportional (error-based), integral (accumulated
error), and derivative (rate-of-change) terms to achieve stable and
accurate control.
7. The primary function of an encoder in a robotic system is to
measure:
A. Voltage fluctuations
B. Hydraulic pressure
C. Position or rotational displacement
D. Battery temperature
Answer: C
Encoders convert mechanical motion into electrical signals, enabling
precise measurement of position and speed.
, 8. A common communication protocol used in industrial robotics is:
A. HDMI
B. USB-A
C. EtherCAT
D. VGA
Answer: C
EtherCAT provides high-speed, deterministic communication suitable for
synchronized motion control in robotics.
9. What is singularity in robotics?
A. Maximum load condition
B. A configuration where the robot loses one or more degrees of
freedom
C. Electrical overload
D. Sensor malfunction
Answer: B
Singularities occur when the Jacobian matrix becomes non-invertible,
causing control issues and potential instability.
10. The Jacobian matrix relates:
A. Voltage and resistance
B. Joint velocities to end-effector velocities
C. Temperature and expansion
D. Load to power supply
Answer: B
The Jacobian maps joint space velocities to Cartesian space velocities
and is central in velocity and force analysis.
