Selected MCQ

Current Question
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
Correct Answer: B
Explanation:
Service robots are designed to assist humans in everyday tasks and are built for safe human interaction.
Related Question 1
Which of these is a type of robot end-effector for grasping objects?
  • A. Servo motor
  • B. Vacuum gripper
  • C. Gyroscope
  • D. Omni-wheel
Correct Answer: B
Explanation:
A vacuum gripper (suction) is a common end-effector for picking up flat or smooth items.
Related Question 2
Why might a roboticist use sensors like accelerometers or gyroscopes?
  • A. To convert electrical energy into motion
  • B. To measure motion, orientation, and acceleration
  • C. To provide power to the robot
  • D. To store data
Correct Answer: B
Explanation:
Accelerometers and gyroscopes measure acceleration and rotational motion, respectively, to support the robot's navigation and balance.
Related Question 3
Which type of database is most suitable for handling unstructured or semi-structured data like JSON documents?
  • A. Relational (SQL)
  • B. NoSQL document store
  • C. Flat file
  • D. Spreadsheet
Correct Answer: B
Explanation:
NoSQL document databases (e.g., MongoDB) are designed to store and query unstructured data, such as JSON documents.
Related Question 4
Which IoT protocol operates over UDP and is designed for constrained devices?
  • A. MQTT
  • B. HTTP
  • C. CoAP
  • D. FTP
Correct Answer: C
Explanation:
CoAP (Constrained Application Protocol) is a lightweight RESTful protocol for IoT over UDP.
Related Question 5
Which type of malware encrypts a user’s data and demands payment?
  • A. Ransomware
  • B. Spyware
  • C. Adware
  • D. Rootkit
Correct Answer: A
Explanation:
Ransomware locks or encrypts data and demands payment (ransom) for the key.