Industrial Automation and Robotics Applications — MCQs – EE

1. What is the main purpose of industrial automation?
(A) To increase production efficiency and reduce human intervention
(B) To replace mechanical parts
(C) To decrease product quality
(D) To eliminate all human supervision

2. Which of the following is a key benefit of automation in industries?
(A) Improved accuracy and consistency
(B) Reduced quality control
(C) Increased manual labor
(D) Reduced data recording

3. Industrial robots are mainly used for:
(A) Repetitive and hazardous tasks
(B) Human resource management
(C) Product advertising
(D) Office administration

4. Which of the following is an example of a continuous process industry?
(A) Oil refinery
(B) Car assembly plant
(C) Shoe factory
(D) Textile workshop

5. A programmable logic controller (PLC) is primarily used to:
(A) Automate industrial processes
(B) Store large databases
(C) Transmit radio signals
(D) Measure temperature directly

6. The first generation of industrial robots was mainly used for:
(A) Material handling and welding
(B) Artificial intelligence applications
(C) Vision-based inspection
(D) Assembly and painting

7. A SCADA system is used for:
(A) Supervisory control and data acquisition
(B) Signal conversion and data analysis
(C) Sound control and digital automation
(D) Speed control and device activation

8. In industrial automation, sensors are used to:
(A) Detect and measure physical parameters
(B) Control data storage
(C) Reduce signal power
(D) Increase CPU speed

9. A robot manipulator performs:
(A) Mechanical movement to perform tasks
(B) Software processing
(C) Data encryption
(D) Electrical generation

10. End effectors are attached to:
(A) The wrist of the robot arm
(B) The base of the manipulator
(C) The power supply unit
(D) The control system

11. The repeatability of a robot measures:
(A) Its ability to return to the same position
(B) Its operating speed
(C) Its weight capacity
(D) Its communication bandwidth

12. Accuracy in robots refers to:
(A) The closeness of the robot’s actual position to the desired one
(B) The number of operations per second
(C) The amount of data processed
(D) The stability of communication

13. Which of the following robots is commonly used in assembly lines?
(A) SCARA robot
(B) Cartesian robot
(C) Cylindrical robot
(D) Delta robot

14. CNC machines are an example of:
(A) Computer-controlled automation
(B) Manual control systems
(C) Pneumatic controllers
(D) Hydraulic systems only

15. Flexible Manufacturing Systems (FMS) are designed to:
(A) Adapt to changes in product design automatically
(B) Produce only one type of product
(C) Avoid computer control
(D) Increase manual operations

16. Industrial robots are classified based on:
(A) Configuration, motion type, and control method
(B) Weight and color
(C) Material used
(D) Brand and size

17. A Cartesian robot moves in:
(A) Linear motions along X, Y, and Z axes
(B) Circular motion only
(C) Rotational motion
(D) Random patterns

18. Articulated robots are characterized by:
(A) Multiple rotary joints
(B) Linear sliders only
(C) No degree of freedom
(D) Pneumatic-only motion

19. A delta robot is best suited for:
(A) High-speed pick-and-place operations
(B) Heavy welding
(C) Large-scale lifting
(D) Grinding operations

20. The main components of an industrial robot include:
(A) Controller, manipulator, sensors, and actuators
(B) Power cable and battery only
(C) Wheels and brakes
(D) Pneumatic valve only

21. A vision system in industrial robotics is used for:
(A) Object detection and quality inspection
(B) Power supply management
(C) Speed control
(D) Data encryption

22. Collaborative robots (cobots) are designed to:
(A) Work safely alongside humans
(B) Replace human operators completely
(C) Operate in isolation
(D) Work underwater only

23. Pneumatic actuators are powered by:
(A) Compressed air
(B) Hydraulic fluid
(C) Electric current
(D) Thermal energy

24. Hydraulic actuators are preferred when:
(A) High force and power are required
(B) Low-speed motion is needed
(C) Precision is more important than strength
(D) Lightweight operation is needed

25. The PLC scan cycle includes:
(A) Input scanning, logic execution, and output update
(B) Power measurement
(C) Data compression
(D) Signal amplification

26. Human-Machine Interface (HMI) is used to:
(A) Allow operators to interact with automated systems
(B) Replace sensors
(C) Control power supply
(D) Measure resistance

27. Robotic welding improves:
(A) Consistency and speed in welding processes
(B) Manual labor intensity
(C) Energy loss
(D) Human supervision

28. Material handling robots are used for:
(A) Loading, unloading, and moving parts
(B) Programming circuits
(C) Data collection
(D) Electrical design

29. Pick and place robots are typically used in:
(A) Packaging and assembly operations
(B) Thermal management
(C) Power generation
(D) Process cooling

30. Industrial automation levels include:
(A) Field, control, supervisory, and enterprise levels
(B) Manual and electric levels only
(C) Hardware and software levels only
(D) Local and global levels only

31. PLC ladder logic is based on:
(A) Electrical relay logic
(B) Binary code
(C) Mechanical levers
(D) Boolean equations only

32. Robotic palletizing refers to:
(A) Stacking products onto pallets automatically
(B) Painting surfaces
(C) Welding joints
(D) Quality inspection

33. Predictive maintenance in automation relies on:
(A) Sensor data and machine learning analysis
(B) Random inspections
(C) Manual checks
(D) Shutdown operations

34. Industrial Internet of Things (IIoT) integrates:
(A) Machines, sensors, and networks for smart manufacturing
(B) Only PLCs
(C) Electrical circuits
(D) Manual systems

35. Automation in process industries helps to:
(A) Maintain continuous and consistent production
(B) Stop production frequently
(C) Increase human error
(D) Reduce process control accuracy