STUPIDSID
1 (a)
What is a PLC? Draw block diagram of PLC. Explain each block in detail.
7 M
1 (b)
What is an Industrial Automation? Give Automation's impact and explain their classification, also.
7 M
2 (a)
Define following terms, (1) Cycling (2) Neutral Zone (3) Control Parameter Range (4) Control Lag (5) Error (6) Dead Time (7) Variable Range.
7 M
Answer any two question from Q2 (b) or Q2 (c)
2 (b) (i)
A controlling variable is a motor speed that varies from 800-1750 rpm. If the speed is controlled by a 25 to 50v dc signal, calculate (a) the speed produced by an input of 38v and (b) the speed calculated as a percent of span.
4 M
2 (b) (ii)
Explain basic block diagram of process control loop.
3 M
2 (c) (i)
A stepper motor has a step angle = 3.6°.
(1) How many pulses are required for the motor to rotate through ten complete revolutions?
(2) What pulse frequency is required? For the motor to rotate at a speed of 100 rev/min?
(1) How many pulses are required for the motor to rotate through ten complete revolutions?
(2) What pulse frequency is required? For the motor to rotate at a speed of 100 rev/min?
4 M
2 (c) (ii)
Advantages and Disadvantages of Automation.
3 M
Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a)
Explain PI Controller with suitable application.
7 M
3 (b)
Explain in detail the input-output module used in PLC.
7 M
3 (c)
Explain Timer and counter instructions for PLC with timing diagram.
7 M
3 (d)
Explain following discontinuous controller modes with suitable application, (i)Two position mode, (ii) Multi position mode.
7 M
Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a)
Give Comparison of the terms SCADA, DCS, and PLC.
7 M
4 (b)
Develop & explain the Ladder Diagram for a temperature measurement and control jig.
7 M
4 (c)
What is the importance of DCS in automation? Discuss architecture-hierarchy of DCS at function levels.
7 M
4 (d)
Explain elements of ladder diagram and its application.
7 M
Answer any two question from Q5 (a), (b) or Q5 (c), (d)
5 (a)
Explain importance of LAN for DCS.
7 M
5 (b)
Explain SCADA with suitable diagram.
7 M
5 (c)
Explain different types of Communication Standards used in DCS.
7 M
5 (d)
Explain the three main components of SCADA.
7 M
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