JNTU
JNTU B.Tech III INTRODUCTION TO MECHATRONICS Previous Question Paper (July/August - 2023 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Explain the use of display system.
Answer
A display system is used to provide a visual representation of data or the state of a system to the operator. It acts as the primary interface for monitoring process variables, system status, and diagnostic information in real-time.
Write any two applications of Hall Effect sensor.
Answer
Two common applications of Hall Effect sensors are:
- Speed measurement: Used in automotive systems to detect the rotational speed of wheels or crankshafts.
- Position sensing: Used in brushless DC motors to determine the position of the rotor for commutation.
Explain the principle of photo conductivity.
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Describe the function of comparison element.
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Classify the types of potentiometer.
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Differentiate machine language and assembly language program.
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Classify the types of microprocessor operations.
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What is meant addressing mode of 8051 PPI?
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Define the function of address bus.
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Explain about register addressing with one example.
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Part B
Compare open and closed loop systems with suitable example.
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Explain the principle of various sensors used for measuring displacement.
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Explain the concept of load to motor inertia mismatching with one example.
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Briefly explain about static characteristics of sensors.
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Discuss about dynamic characteristics of sensors.
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Discuss any two types of light sensors.
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Explain the use of microprocessors in mechatronic system.
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Summarize the instruction set of 8051 microcontroller.
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Explain the program for logical instructions in 8051 microcontroller.
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Compare microprocessor and microcontroller.
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Explain a circuit that can be used to start a motor and then after a delay of 100s start a pump when the motor is switched off there should a delay of 10s before the pump is switched off.
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Explain about latching circuit with suitable example.
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Explain about timers.
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Explain in detail about various motion control aspects to be considered in design of mechatronic system.
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Explain the following in detail:
a) Electronic Gearing
b) GOTO position applications.
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