B.TECH MECHANICAL QUESTION PAPAER OF M&I

                                       B.Tech Mechanical Engineering

6^th Sem.                                             GJUS&T, Hisar

    MEASUREMENT AND INSTRUMENTATION

                               ME-310-E

Q.1

What Is an instrument? Give detailed classification of instruments. List the advantage and disadvantage of each type instrument.

Q.2

Explain the phenomenon of Hysteresis in measurement systems. Alongside explain the term “Threshold” , “maximum input hysteresis” ,”Maximum output Hysteresis”, ”Dead Zone”, “Backlash”. Draw neat diagram to explain your answer.

Q.3

Explain the principle of working and construction detail of photo-voltaic cell.

Explain why it is very useful for space applications.

Q.4

What is digital voltmeter? Explain different types of Digital voltmeter in detail.

Q.5

Describe the method of measuring torque of rotating shaft using strain gauges.

Q.6

What is a hot Wire Anemometer ? Describe its construction and principle of working.

Q.7

Explain the construction and working of Liquid in glass thermometers. Describe the corrections applied in the case of total immersion and partial immersion Thermometers.

Q.8 Write the short notes on the following

(a) Median

(b) Opto-electrical transducer

(c) Accuracy and Precision  

GJUS&T MECHANICAL ENGINEERING PAPER (AUTOMATIC CONTRO)L

                                       B.Tech Mechanical Engineering

6^th Sem.                                             GJUS&T,Hisar

                       AUTOMATIC CONTROL

                               ME-308-E

Q.1

Discuss the Nyquist stability criterion with suitable example.

Q.2

What is basic concept of control system compensation? What are the various types of compensation schemes used in control system?

Q.3

Correlate between time domain and frequency domain specifications.

Q.4

Explain the rules for drawing forms of root loci also explain relation root locus location and transient response.

Q.5

Draw Bode plots for following open loop transfer function. Find gain margin and phase margin:

G(s)=10(s+1)/s(1+0.5s)(1+0.1s)(1+0.2s)

Q.6

Give the different types of control system. Explain the operation of hydraulic controller.

Q.7

(a) Explain state, state variable, state equation and state space. Also give the advantages of state space representation over classical representation.

(b)Write short note on Polar plot.

Q.8 Discuss the following:

(a) Open loop control system and closed loop control system

(b) Feedback and Feed forward control system

(c) Causal and non-causal  control system

(d) Nicholas Plots

(e) Time variant and time invariant control systems

GJUS&T, B.tech Mechanical, AUTOMATIC CONTROL EXAM PAPER

                                       B.Tech Mechanical Engineering

6^th Sem.                                             GJUS&T,Hisar

                       AUTOMATIC CONTROL

                               ME-308-E

Q.1

 (a) Explain different types of control systems.

        (b)Draw block diagram for aerospace control.

Q.2

 What are the different types of controllers?                        With suitable sketch explain pneumatic controllers.

Q.3

(a) Define error constant.

        (b) Explain Laplace transform representation  with suitable diagram.

Q.4

 (a) Describe the behaviour of different types plots in frequency response analysis.

(b) Draw rectangular plots for first and second order system.

Q.5

 Discuss the Routh’s criterion with suitable example.

Q.6

 (a) Define root locus method.

(b)Find relation between root locus locations and transient response and explain its parametric vibration.

Q.7

(a) Explain Pulse transfer function.

(b) Discuss root locus method.

Q.8 Write short notes on the following;

(a) Discrete system

(b) Space equation

(c) Signal flow graph