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Download GTU BE/B.Tech 2017 Winter 8th Sem Old 181702 Motion Control Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2017 Winter 8th Sem Old 181702 Motion Control Previous Question Paper

This post was last modified on 20 February 2020

This download link is referred from the post: GTU BE/B.Tech 2017 Winter Question Papers || Gujarat Technological University



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GUJARAT TECHNOLOGICAL UNIVERSITY

BE SEMESTER-VIII(OLD) EXAMINATION — WINTER 2017


Subject Code: 181702 Date: 02-11-2017

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Subject Name: Motion Control

Time: 02:30 pm to 05:00 pm Total Marks: 70


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Instructions:



  1. Attempt all questions.

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  3. Make suitable assumptions wherever necessary.

  4. Figures to the right indicate full marks.


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Q.1 (a) Explain resolvers and magnetic pickups as a encoder. 07

(b) List out selection criteria for dc motor for incremental motion applications. 07


Q.2 (a) Explain permanent magnet moving coil dc motor. 07

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(b) Explain the techniques for minimizing torsional resonance effect in detail. 07


OR


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(b) List out all methods of speed control of dc motor and explain any one in detail. 07


Q.3 (a) Write a short note on unidirectional servo amplifier. 07

(b) Explain bipolar PWM amplifiers. 07

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OR


Q.3 (a) Draw and explain velocity control system with block diagram. 07

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(b) Write short not on phase locked servo system. 07


Q.4 (a) Describe the hybrid type step motor with relevant waveform/diagram. 07

(b) List out the selection criteria for stepper motor. Explain step angle resolution and 07

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torque requirements.


OR


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Q.4 (a) What are the advantages and disadvantages of step motors? Explain the step 07

motor performance characteristics in detail.

(b) Explain any two application of step motor. 07

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Q.5 (a) Explain any one suppression circuit for DC motor control with diagram. 07

(b) Explain effect of lead angle’in closed loop control of step motor. 07


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OR


Q.5 (a) Draw and explain bidirectional four-phase single and two phase on logic 07

sequencer circuit-with waveform of output phase for each pulses.

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(b) Why over drive circuits are required for step motors? Explain dual voltage 07

control circuit.


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This download link is referred from the post: GTU BE/B.Tech 2017 Winter Question Papers || Gujarat Technological University

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