B. Tech III Year I Semester Examinations, December-2011 PROCESS INSTRUMENTATION (CHEMICAL ENGINEERING) Time: 3 hours Max. Marks: 80 Answer any five questions All questions carry equal marks --1.a) b)
Write short note on response of first order system. Explain in detail the dynamic characteristics of an instrument.
2.a)
What are the sources of static error in industrial pressure thermometers? How can they be corrected? Write about mercury in glass thermometer system. [8+8]
3.a) b)
or ld
b)
[8+8]
Name five most commonly used Thermocouples and indicate their temperature ranges. What are the factors that affect the response of thermocouples? Discuss. [8+8] What is the principle in radiation pyrometer? Give a detailed note on radiation pyrometer and how it works.
b)
Prove that for small values of ʎT Wien’s law and Plank’s law of radiation approach each other in value. What is the difference at 0.65 micron at 1000, 2000, and 3000°F? [8+8]
uW
4.a)
5.a) b)
Discuss how analysis of moisture can be done. Explain the principle and working of gas chromatography and give its uses.[8+8]
6.a) b)
Explain elaborately with a neat sketch refractometer. What are its advantages? Discuss spectroscopic analysis by absorption and indicate where it can be applied. [8+8] Describe a system to determine the flow rate of dry materials continuously with a sketch? Explain the measurement of absolute pressure by using the McLeod gauges and their range? [8+8]
7.a)
nt
b)
What is the difference between head flow meters and area flow meters? Explain the working of the both types of flow meters? [16]
Aj
8.
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Code No: RR310805
RR
SET-2
1.a) b)
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B. Tech III Year I Semester Examinations, December-2011 PROCESS INSTRUMENTATION (CHEMICAL ENGINEERING) Time: 3 hours Max. Marks: 80 Answer any five questions All questions carry equal marks --Name five most commonly used Thermocouples and indicate their temperature ranges. What are the factors that affect the response of thermocouples? Discuss. [8+8] What is the principle in radiation pyrometer? Give a detailed note on radiation pyrometer and how it works.
b)
Prove that for small values of ʎT Wien’s law and Plank’s law of radiation approach each other in value. What is the difference at 0.65 micron at 1000, 2000, and 3000°F? [8+8]
or ld
2.a)
Discuss how analysis of moisture can be done. Explain the principle and working of gas chromatography and give its uses.[8+8]
4.a) b)
Explain elaborately with a neat sketch refractometer. What are its advantages? Discuss spectroscopic analysis by absorption and indicate where it can be applied. [8+8] Describe a system to determine the flow rate of dry materials continuously with a sketch? Explain the measurement of absolute pressure by using the McLeod gauges and their range? [8+8]
5.a) b)
6.
uW
3.a) b)
What is the difference between head flow meters and area flow meters? Explain the working of the both types of flow meters? [16] Write short note on response of first order system. Explain in detail the dynamic characteristics of an instrument.
8.a)
What are the sources of static error in industrial pressure thermometers? How can they be corrected? Write about mercury in glass thermometer system. [8+8]
nt
7.a) b)
Aj
b)
--ooOoo--
[8+8]
Code No: RR310805
RR
SET-3
.in
B. Tech III Year I Semester Examinations, December-2011 PROCESS INSTRUMENTATION (CHEMICAL ENGINEERING) Time: 3 hours Max. Marks: 80 Answer any five questions All questions carry equal marks --Discuss how analysis of moisture can be done. Explain the principle and working of gas chromatography and give its uses.[8+8]
2.a) b)
Explain elaborately with a neat sketch refractometer. What are its advantages? Discuss spectroscopic analysis by absorption and indicate where it can be applied. [8+8] Describe a system to determine the flow rate of dry materials continuously with a sketch? Explain the measurement of absolute pressure by using the McLeod gauges and their range? [8+8]
3.a) b)
4.
or ld
1.a) b)
What is the difference between head flow meters and area flow meters? Explain the working of the both types of flow meters? [16]
5.a) b)
Write short note on response of first order system. Explain in detail the dynamic characteristics of an instrument.
6.a)
What are the sources of static error in industrial pressure thermometers? How can they be corrected? Write about mercury in glass thermometer system. [8+8]
7.a) b)
uW
b)
[8+8]
Name five most commonly used Thermocouples and indicate their temperature ranges. What are the factors that affect the response of thermocouples? Discuss. [8+8] What is the principle in radiation pyrometer? Give a detailed note on radiation pyrometer and how it works.
b)
Prove that for small values of ʎT Wien’s law and Plank’s law of radiation approach each other in value. What is the difference at 0.65 micron at 1000, 2000, and 3000°F? [8+8]
Aj
nt
8.a)
--ooOoo--
Code No: RR310805
RR
SET-4
b)
2.
Describe a system to determine the flow rate of dry materials continuously with a sketch? Explain the measurement of absolute pressure by using the McLeod gauges and their range? [8+8] What is the difference between head flow meters and area flow meters? Explain the working of the both types of flow meters? [16]
or ld
1.a)
.in
B. Tech III Year I Semester Examinations, December-2011 PROCESS INSTRUMENTATION (CHEMICAL ENGINEERING) Time: 3 hours Max. Marks: 80 Answer any five questions All questions carry equal marks ---
3.a) b)
Write short note on response of first order system. Explain in detail the dynamic characteristics of an instrument.
4.a)
What are the sources of static error in industrial pressure thermometers? How can they be corrected? Write about mercury in glass thermometer system. [8+8]
5.a) b)
Name five most commonly used Thermocouples and indicate their temperature ranges. What are the factors that affect the response of thermocouples? Discuss. [8+8]
uW
b)
[8+8]
6.a)
What is the principle in radiation pyrometer? Give a detailed note on radiation pyrometer and how it works.
b)
Prove that for small values of ʎT Wien’s law and Plank’s law of radiation approach each other in value. What is the difference at 0.65 micron at 1000, 2000, and 3000°F? [8+8] Discuss how analysis of moisture can be done. Explain the principle and working of gas chromatography and give its uses.[8+8]
8.a) b)
Explain elaborately with a neat sketch refractometer. What are its advantages? Discuss spectroscopic analysis by absorption and indicate where it can be applied. [8+8]
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(a) Explain with a block diagram an instrumentation system and explain the · function of various blocks. [12M] · (b) The dead-zone of a certain plyrometer is 0.125 ...
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RR. Set No. 2. II B.Tech II Semester Supplementary Examinations,May 2010 ... Code No: RR220801. RR. Set No. 2. (b) One kg of steam having a volume of 180 ...
3. Sketch the root locus of the given system GH(s) = K / (s+1) (s+3) (s+6) · (a) Find the break ... amplifier gain KA=5. Also find steady state error to unit ramp input.
