EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2026 |INSTANT
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1. What is the primary goal of an automated manufacturing
system?
A. Increase manual labor
B. Reduce production efficiency
C. Improve productivity and consistency
D. Eliminate all machines
Rationale: Automation focuses on efficiency, consistency, and
productivity in production processes.
Correct Answer: C
2. Which component is essential in a PLC system?
A. Sensors only
B. Input/output modules
C. Paint sprayers
D. Manual switches only
Rationale: PLCs rely on I/O modules to interface with machines
and sensors.
Correct Answer: B
,3. What does CNC stand for?
A. Computer Network Control
B. Central Numerical Command
C. Computer Numerical Control
D. Control Network Circuit
Rationale: CNC machines are computer-controlled machining
systems.
Correct Answer: C
4. Which device detects physical parameters in automation
systems?
A. Actuator
B. Sensor
C. Relay
D. Motor driver
Rationale: Sensors detect variables like temperature, pressure,
and position.
Correct Answer: B
5. What is an actuator used for?
A. Detect signals
B. Store data
,C. Convert electrical signals into motion
D. Process software
Rationale: Actuators perform physical actions based on control
signals.
Correct Answer: C
6. Which is a benefit of automation?
A. Increased human error
B. Reduced production speed
C. Higher consistency
D. More downtime
Rationale: Automation improves consistency and reduces
variability.
Correct Answer: C
7. What is the role of a PLC?
A. Mechanical design
B. Process control and automation
C. Material storage
D. Human training
Rationale: PLCs control industrial processes automatically.
Correct Answer: B
, 8. Which language is commonly used in PLC programming?
A. Python only
B. Ladder logic
C. HTML
D. JavaScript
Rationale: Ladder logic is standard in industrial PLC
programming.
Correct Answer: B
9. What is SCADA used for?
A. Manual assembly
B. Supervisory control and data acquisition
C. Painting products
D. Welding manually
Rationale: SCADA monitors and controls industrial systems.
Correct Answer: B
10. Which is a type of industrial robot?
A. Service robot only
B. Art robot
C. Articulated robot
D. Toy robot
Rationale: Articulated robots are widely used in manufacturing.
Correct Answer: C