Download JNTUA B.Tech 4-2 R13 2018 July Supple 13A02806 Industrial Automation and Control Question Paper

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Code: 13A02806

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B.Tech IV Year II Semester (R13) Advanced Supplementary Examinations July 2018

INDUSTRIAL AUTOMATION & CONTROL

(Electrical and Electronics Engineering)

Time: 3 hours

Max. Marks: 70

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PART - A

(Compulsory Question)

Answer the following: (10 X 02 = 20 Marks)

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1. (a) What is industrial automation?

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2. (b) What is calibration?
3. (c) How does cascade control work?
4. (d) What is control system?
5. (e) State three main components of PLC's.
6. (f) What is sequence / logic control?

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7. (g) What is pneumatic system?
8. (h) Name any two differences between servo valve and a proportional valve.
9. (i) What is steeper motor?
10. (j) What is a variable frequency drive?

PART - B

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(Answer all five units, 5 X 10 = 50 Marks)

UNIT - I

1. With neat sketches, explain any two displacement and speed measurement.

   OR

2. Classify and sub classify errors. Explain briefly a type of error, with example and how can be reduced.

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UNIT - II

1. How does cascade control work? Explain advantages and disadvantages of cascade control system.

   OR

2. What is PID controller and how it works?

UNIT - III

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1. Describe the elements of a typical RLL program and their interpretations.

   OR

2. Explain briefly the structured design approach in sequence control.

UNIT - IV

1. Explain with a neat sketch:
   1. Balanced vane motor.

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   2. Swash plate piston motor.

   OR

2. Explain with a suitable circuit diagram:
   1. Shuffle valve.
   2. Quick exhaust valve.

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UNIT - V

1. Sketch and explain the principle of stepper motor and name the applications of stepper motors.

   OR

2. What are electrical drives? Why electrical drives are needed? With a block diagram, explain AC electric drive.

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