Mechatronics MCQ
Mechatronics MCQ covers essential topics like sensors, actuators, microcontrollers, control systems, robotics, and automation. These objective questions help students build strong interdisciplinary concepts required for mechanical, electronics, and mechatronics engineering exams.
Q1. Mechatronics is a combination of?
A. Mechanical + Electronics
B. Mechanics + Biology
C. Chemistry + Electronics
D. Software + Biology
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Q2. A microcontroller is used for?
A. Heavy machining
B. Control operations
C. Material handling
D. Casting
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Q3. Which sensor detects temperature?
A. Thermocouple
B. LDR
C. Ultrasonic sensor
D. Accelerometer
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Q4. PLC stands for?
A. Programmable Logic Controller
B. Process Level Control
C. Power Line Control
D. Programmable Line Circuit
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Q5. Which actuator converts electrical energy to mechanical motion?
A. Sensor
B. Motor
C. Transistor
D. Relay
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Q6. A robot is controlled using?
A. Compressor
B. Controller
C. Sensor only
D. Gearbox
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Q7. Which sensor detects position?
A. Potentiometer
B. Thermometer
C. Hygrometer
D. Pyrometer
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Q8. Which programming language is widely used in Mechatronics?
A. HTML
B. Python
C. CSS
D. Bootstrap
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Q9. Which device is used for digital-to-analog conversion?
A. ADC
B. DAC
C. POT
D. PWM
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Q10. SCADA stands for?
A. Supervisory Control and Data Acquisition
B. System Control and Data Access
C. Sensor Controlled Automatic Data
D. Signal Control and Data Analyzer
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Q11. Which device measures acceleration?
A. Accelerometer
B. Ultrasonic sensor
C. Thermometer
D. Strain gauge
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Q12. A closed-loop system contains?
A. Sensor
B. Feedback
C. Motor
D. All of these
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Q13. Which system corrects errors automatically?
A. Open-loop system
B. Closed-loop system
C. Manual control
D. Uncontrolled system
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Q14. PID controller stands for?
A. Proportional–Integral–Derivative
B. Power–Internal–Device
C. Position–Input–Direction
D. Proportional–Input–Drive
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Q15. Which sensor works on change in resistance?
A. Strain gauge
B. Thermistor
C. LDR
D. All of these
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Q16. Stepper motors are used for?
A. Precise angular movement
B. Heating
C. Cooling
D. Pressure control
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Q17. Which communication protocol is used in automation?
A. HTTP
B. Modbus
C. SMTP
D. FTP
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Q18. MEMS stands for?
A. Micro Electro Mechanical Systems
B. Mechanically Embedded Motor System
C. Modified Electrical Measurement System
D. Micro Electronic Machine Sensors
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Q19. Which device measures pressure?
A. Barometer
B. Thermocouple
C. LDR
D. Encoder
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Q20. Encoder is used to measure?
A. Speed
B. Position
C. Light
D. Temperature
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Q21. Actuators are used for?
A. Sensing
B. Power supply
C. Movement
D. Display
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Q22. A microprocessor differs from microcontroller because?
A. Microcontroller has peripherals built-in
B. Microcontroller is only used for storage
C. Microprocessor has no ALU
D. Both are same
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Q23. Which of these is an input device?
A. Motor
B. Sensor
C. Relay
D. Solenoid
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Q24. Which of these is an output device?
A. Sensor
B. Encoder
C. Relay
D. Strain gauge
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Q25. Which law governs heat sensors?
A. Ohms law
B. Seebeck effect
C. Faraday law
D. Newton law
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Q26. Which device stores electrical energy?
A. Resistor
B. Transistor
C. Capacitor
D. Switch
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Q27. Which device is used for proximity sensing?
A. LDR
B. Ultrasonic sensor
C. Potentiometer
D. Thermocouple
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Q28. Which motor is best for robotics?
A. Servo motor
B. Induction motor
C. Stepper motor
D. Both A and C
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Q29. Which sensor detects vibration?
A. Accelerometer
B. Thermistor
C. LDR
D. Barometer
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Q30. Fuzzy logic is used in?
A. Automatic washing machines
B. Automobiles
C. Robots
D. All of these
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