What is process control? Explain the applications of process control in chemical technologies.
[3 marks]Explain and Derive transfer function for transportation lag.
[4 marks]Solve the second-order initial-value problem using the Laplace transform method; d2y dy +2 +2y = e−t y(0)= 0, y′(t)= 0 dt2 dt
[7 marks]State and prove final value theorem.
[3 marks]Define unit impulse input function and derive its transfer function.
[4 marks]Derive the transfer function for first order system, mercury in glass thermometer. State all assumptions involved. Also derive step response.
[7 marks]Athermometer with time constant 10 sec showing a steady temperature of 35°Cis suddenly immersed in heated oil bath at 200°C. Find i. Time required for temperature reading of 150°C. ii. Temperature reading on the thermometer after 25 sec. iii. The percentage response after 40 sec
[7 marks]Explain open loop control system with an example.
[3 marks]Explain briefly the concept of PLC and SCADA.
[4 marks]Derive the Step response of an Interacting system having same value of time constants.
[7 marks]Describe theorems of the Routh Test
[3 marks]Explain the pneumatic controller mechanism of proportional control.
[4 marks]Astep change of magnitude 4 is introduced into a system having the 0.710 transfer functionG(s) = s2+1.65s+4 Calculate overshoot, decay ratio, ultimate and maximum value of response, radian frequency and period of oscillation.
[ marks]Explain the static and dynamic characteristics of instrumentation.
[3 marks]With neat sketch explain the importance of transfer function.
[4 marks]Find the stability of system using Routh stability criteria for the following equation; S4+8S3+18S2+16S+5 = 0
[7 marks]Explain the working of Pirani vacuum gauge.
[3 marks]Discuss the transfer function for PID controller.
[4 marks]Explain rules for plotting root locus diagrams.1
[7 marks]Mention various temperature measurement methods.
[3 marks]State various types of manometers and explain any one in brief.
[4 marks]Discuss in brief indirect level measurement.
[7 marks]Classify the pressure measuring instruments.
[3 marks]Explain with neat sketch the principle of Radiation Pyrometer.
[4 marks]Discuss construction and working of Orifice meter.
[7 marks]