III B.Tech I Semester Regular Examinations,Nov/Dec 2009 INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. What are the different types of direct methods of liquid level measurement? Explain with neat sketches any two of them. [16]
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2. (a) Define ‘density’ and ‘specific gravity’. What are their units? Explain the importance of density and specific gravity measurement in industries. (b) Explain any one method of density measurement. 3. (a) Explain resonance tachometer.
[6+10]
or
(b) What are translational velocity transducers? Explain in detail.
[8+8]
4. (a) Explain about light wave-length standards.
(b) Explain the optical principles with neat diagrams:
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i. Reflection ii. Refraction iii. Interference.
[4+12]
5. Explain detail the radiation fundamentals used in temperature measurement. [16] 6. Liquid column manometers are treated as standards for pressure and differential pressure measurements. Why? Explain with suitable examples. [16]
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7. (a) Explain why gas flow measurements are complicated and what measures are taken to get accurate measurements. (b) Explain the nature of problems faced while measuring volume and mass flow rate of fluids. [8+8]
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8. (a) Explain the torque measurement by reaction method. (b) A torision bar is made of mild steel and has a diameter of 25mm, the shear modules of mild steel is 80GN/m2 . Calculate the values of shear sensitivity. Suppose a torque of 104 N-m is applied to the bar, calculate the value of shear strain angle. [8+8] ?????
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Code No: 45022
R07
Set No - 2
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III B.Tech I Semester Regular Examinations,Nov/Dec 2009 INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain the operation of a two-axis position gyro with a neat diagram.
[8+8]
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(b) Discuss the applications of a gyroscope?
2. Describe the relation between phase angle, frequency ratio and damping in the seismic vibrational meter. [16] 3. (a) Explain the operating principles of ultrasonic flow meters.
(b) Mention the advantages and disadvantages of ultrasonic flow meters.
[8+8]
or
4. (a) Explain the principle & operation of a force balance type pressure transducer.
(b) List the advantages & disadvantages of capacitive pressure transducers. [10+6] 5. (a) What are the various electrical Hygrometers. Explain briefly. [8+8]
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(b) Explain detail about Resistive Hygrometer.
6. Explain the following method of density measurements (a) Strain gauge load cell method. (b) Air pressure balance method.
[8+8]
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7. Radiant energy measurement was made from a hot surface of a metal. The amount of energy emitted was estimated 15.5±0.1 KW/m2 and surface emissivity was estimated as 0.75±0.1. Determine the surface temperature of the metal and estimate the uncertainty in the measurement. [16] 8. (a) Explain the operation of an Electrical comparator with a neat diagram.
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(b) List the advantages of Electrical comparators. ?????
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[12+4]
Code No: 45022
R07
Set No - 3
1. How will you use an elastic transducer to measure force? sketches.
Explain with neat [16]
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2. Write short notes on:
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III B.Tech I Semester Regular Examinations,Nov/Dec 2009 INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
(a) Sound-level meter. (b) Microphones.
[8+8]
or
3. (a) What is the basic difference between the optical pyrometer and the Total radiation pyrometer? Explain. (b) Mention the advantages and disadvantages of radiation pyrometers.
[8+8]
4. Briefly discuss the various types of densitometers and their applications.
[16]
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5. (a) Explain the terms i. Absolute pressure. ii. Gauge pressure iii. Atmospheric pressure.
(b) Describe the method of measurement of differential pressure using an inductive transducer. [6+10] 6. (a) What is tachometer? Where is it used?
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(b) Classify electric generator type tachometers. (c) Explain AC tachometer with neat sketch.
[4+4+8]
7. (a) What is surface texture? Explain components of surface texture.
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(b) Explain Ball type plug gauge to measure big bore diameter.
[8+8]
8. A Rotameter has been calibrated in lit/min for water. It is to be used for metering brine solution of specific gravity 1.15. For this purpose the density of the float has been changed from 2000Kg/m3 to 2250Kg/m3 without altering the shape and volume of the float. What correction factor should be introduced in the original scale in order to use the Rotameter for the brine solution? [16] ?????
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Code No: 45022
R07
Set No - 4
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III B.Tech I Semester Regular Examinations,Nov/Dec 2009 INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain how LVDT is used for measurement of torque on a rotating shaft.
[8+8]
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(b) Explain variable permeability method of torque measurement. 2. Explain the following: (a) Radiation pyrometer. (b) Optical pyrometer.
[8+8]
or
3. (a) Explain different elastic pressure sensing elements used in electrical transducers. (b) Explain the operation of a strain gauge pressure transducer with a neat sketch. [8+8]
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4. What is the function of microphone? Explain constructional details and working principles of different types of microphones. [16] 5. Mention different methods of lengths measurement for industrial use and explain the same with reference to their characteristics. [16] 6. (a) Explain the principle and operation of an inductive pickup tachometer. (b) Describe the basic principles of any two methods of angular velocity measurement. [8+8]
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7. A Rotameter is calibrated for metering a liquid of density 1000Kg/m3 and has a scale ranging from 1 to 100 L/min. It is intended to use this meter for metering the flow of gas of density 1.25Kg/m3 with a flow range between 20 to 2000 L/min. Determine the density of the new float, if the original one has a density of 2000Kg/m3 . The shape and volume of both floats is assumed to be the same. 8. How can you measure the density of flowing liquid? Explain with neat diagram. [16] ?????
(a) What is surface texture? Explain components of surface texture. (b) Explain Ball type plug gauge to measure big bore diameter. [8+8] · 8. A Rotameter has been calibrated in lit/min for water. It is to be used for metering · brine solution of specific gravity 1.15. For this purpose the density of the float · has been changed from ...
what do you understand by Lubrication of Joints? [16] · 5. (a) Explain the three features of viscoelasticity in detail · (b) Explain the working principle of oscillating ...
Perform a Chi-square test at .o5 level whether there is a significance difference ... (b) Derive formulae to find the mean and variance of the Binomial distribution.
and T1 = sink temperature) for a Carnot refrigerator whose COP is 5. Also ... fusible plug, at what temperature should the plug melt to limit the maximum.
[8+8] · 7. (a) List out equipments used in pathology and blood bank departments of a · hospital. (b) Discuss about various blood groups present in humanbeings.
medical equipment. (b) Write a note on responsibilities of BME Department. [8+8] · 8. Discuss the sanitation procedures and laundry services with in a hospital.
Define and derive the equation for the vorticity of a flow. Hence prove that ... out from the leading edge to the trailing edge of a symmetrical airfoil. (b) State and ...
Check whether the following impedance functions are LC, RL or RC? (a) Z(s) = ... amplitude 5 V. Find autocorrelation function and energy spectral density. [8+8].
3. Regeneration is possible in the fixed-bias transistor flip-flop if the base-to-base · voltage gain exceeds unity. Verify that this gain condition is satisfied provided ...
Set No - 2. (b) Write about bus structures. ... (b) Explain time-shared common bus in detail. [8+8] ... (c) Asynchronous serial transmission with one stop bits · [16].
Consider a telegraph source having two symbols, dot and dash. The dot duration · is 0.2s.The dash duration is 3 times the dot duration. the probability of the dots.
2. (a) Explain why hardening by quenching is followed by tempering. (b) Only mechanical properties not physical properties can be altered by heat · treatment.
Describe the methods of manipulating DNA for gene cloning purpose. [16] · 5. What are transposons? and describe about the types of bacterial transposons. [16].
Young's modulus = 35 Ã 1010 Pa and the specific surface energy = 2 J/m2 · (b) Give a brief account on the various stages of creep rate with reference to design.
All Questions carry equal marks · ***** · 1. Explain the microbial production of aminoacids with one example. [16] · 2. What are biofuels? How these are produced ...
1. Explain tree based indexing and hash based indexing techniques. [16] · 2. Explain the .... 1. Explain in detail the structure of B+ tree with an example · [16].
(a) What is Radix-64 format? Explain how both PGP and S/MIME perform the · Radix-64 conversion is performed. (b) Describe the five principal services that ...
Farm in Maharashtra, supplied with water from a dug well pumping for 4 h a day, are given below. Determine the required discharge. [16]. 7. AjntuWorld.in ...
... carry equal marks · ***** · 1. List eight major functions of an exhaust nozzle. .... plane. Show the internal layout for swallowed air to reach the engine. Explain.
Enumerate difference between growth and non-growth associated product kinetics. [16] · 7. Write a brief note on biosensors, and describe how they are used for ...
