Selected MCQ

Current Question
Which of these is a kinematic model describing a robot's motion over time?
  • A. Euler equation
  • B. Kinetic equation
  • C. Dynamic equation
  • D. Kinematic equations (like velocity and acceleration)
Correct Answer: D
Explanation:
Kinematic equations describe motion using parameters such as velocity and acceleration, without considering forces.
Related Question 1
What is the main benefit of using a parallel kinematic robot structure?
  • A. Lower cost
  • B. Higher stiffness and precision for certain tasks
  • C. Requires fewer motors
  • D. It can hover
Correct Answer: B
Explanation:
Parallel structures, such as delta robots, provide high stiffness and precision for tasks like pick-and-place.
Related Question 2
How does inverse kinematics differ from forward kinematics in robotics?
  • A. Inverse computes joint angles from end position; forward does opposite
  • B. Inverse encrypts control data; forward decrypts it
  • C. Inverse is used for wheels; forward for arms
  • D. They are the same
Correct Answer: A
Explanation:
Inverse kinematics calculates joint parameters for a given end-effector pose; forward kinematics computes end pose from joint angles.
Related Question 3
What is the purpose of inverse kinematics in a robotic arm?
  • A. To compute the joint movements needed for a desired end-effector position
  • B. To encrypt robot control signals
  • C. To linearize sensor inputs
  • D. To measure force and torque
Correct Answer: A
Explanation:
Inverse kinematics calculates how to move joints so the robot's end-effector reaches the target position.
Related Question 4
Which concept involves using sensor data to create a 3D model of a city or facility?
  • A. Digital wallet
  • B. Digital twin
  • C. Virtual machine
  • D. Quantum replica
Correct Answer: B
Explanation:
Digital twins can model entire environments or systems in real-time using sensor data.
Related Question 5
In wheeled mobile robots, what is 'skid steering'?
  • A. Steering using a separate pivot wheel
  • B. Rotating each wheel at different speeds to turn
  • C. Fixed steering angle
  • D. Flying mode
Correct Answer: B
Explanation:
Skid steering turns by differentially driving wheels on each side.