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Technological Knowledge MCQs

Which type of robot is designed to interact with humans in environments like homes or hospitals safely?

  • A. Industrial robot
  • B. Service robot
  • C. Humanoid robot
  • D. Exploration robot
Explanation:
Service robots are designed to assist humans in everyday tasks and are built for safe human interaction.

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
Explanation:
Inverse kinematics calculates how to move joints so the robot's end-effector reaches the target position.

Which of these best describes swarm robotics?

  • A. A single large robot with many functions
  • B. Multiple robots coordinating to perform tasks
  • C. Robots that mimic human emotions
  • D. Robots controlled by biological neural networks
Explanation:
Swarm robotics involves many robots working together through simple rules to complete tasks.

What does SLAM stand for in the context of autonomous robots?

  • A. Simultaneous Localization and Mapping
  • B. Sequential Learning and Monitoring
  • C. Sensor Linking and Management
  • D. Statistical Learning and Measurement
Explanation:
SLAM is the process by which a robot simultaneously builds a map of an unknown environment and tracks its own location.

Which of the following is an example of an actuator commonly used in robotics for precise position control?

  • A. Stepper motor
  • B. Photodiode
  • C. Resistor
  • D. Capacitor
Explanation:
Stepper motors move in discrete steps, enabling precise position control in robotics.

What is the Robot Operating System (ROS) primarily used for?

  • A. Operating the sensors and motors of robots
  • B. A middleware framework to control and interface with robots
  • C. Real-time operation of robot arms
  • D. Simulating robots in video games
Explanation:
ROS is a flexible framework for writing robot software, providing tools and libraries for building robot applications.

Which sensor type measures distance by using light pulses and time-of-flight calculations?

  • A. Ultrasonic sensor
  • B. Infrared sensor
  • C. LiDAR sensor
  • D. GPS sensor
Explanation:
LiDAR uses laser light pulses and timing to determine distances to objects.

In robotics, what does 'DOF' (Degrees of Freedom) refer to?

  • A. The number of independent movements a robot can make
  • B. The power rating of the robot
  • C. The number of CPUs in the control unit
  • D. The robot's error margin
Explanation:
Degrees of freedom refer to the number of independent ways a robot can move or rotate its joints.

What does "CNN" typically stand for in machine learning?

  • A. Circular Neural Network
  • B. Convolutional Neural Network
  • C. Cascaded Neural Net
  • D. Cluster Network Model
Explanation:
CNN stands for Convolutional Neural Network, often used in image processing tasks.

Which learning approach would you use if you have labeled data to train a model to predict outcomes?

  • A. Supervised learning
  • B. Unsupervised learning
  • C. Reinforcement learning
  • D. Deep learning
Explanation:
Labeled data used to predict outcomes corresponds to supervised learning.