Code No: RR310805 RR Set No. 2
III B.Tech I Semester Supplementary Examinations,June 2010
PROCESS INSTRUMENTATION Chemical Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Describe the dew point method of measurement of absolute humidity.
(b) Write the principle of gas analysis by thermal conductivity. [8+8]
2. What methods of analysis can be used for determining composition of
(a) Steels
(b) Hydrocarbon mixtures
(c) Mixture of Ammonia in air
Explain anyone of them in detail. [16]
3. (a) Write a note on pressure switches.
(b) With a neat diagram explain how a Purged System operates for the measure- ment of pressure of Viscous process fluids. [8+8]
4. (a) What are industrial thermo couples. Give their temperature range and relative merits. (b) What are the desirable properties of thermocouples. [10+6]
5. With a neat sketch, explain the elements of an Instrument. [16]
6. (a) Write about methods to be followed to measure liquid level in corrosive liquids. (b) Describe in detail the density measurement using weight method. [8+8]
7. Describe the construction of a venturimeter with a figure showing clearly the pres- sure tap connections. Explain the salient features of the working of venturimeter.[16]
8. (a) What is the purpose of instrumentation diagram?
(b) Explain the various symbols and their uses for instrumentation diagrams. [8+8]
? ? ? ? ?
1
Code No: RR310805 RR Set No. 4
III B.Tech I Semester Supplementary Examinations,June 2010
PROCESS INSTRUMENTATION Chemical Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Write about methods to be followed to measure liquid level in corrosive liquids.
(b) Describe in detail the density measurement using weight method. [8+8]
2. (a) What is the purpose of instrumentation diagram?
(b) Explain the various symbols and their uses for instrumentation diagrams.
[8+8]
3. With a neat sketch, explain the elements of an Instrument. [16]
4. (a) Describe the dew point method of measurement of absolute humidity.
(b) Write the principle of gas analysis by thermal conductivity. [8+8]
5. (a) What are industrial thermo couples. Give their temperature range and relative merits. (b) What are the desirable properties of thermocouples. [10+6]
6. What methods of analysis can be used for determining composition of
(a) Steels
(b) Hydrocarbon mixtures
(c) Mixture of Ammonia in air
Explain anyone of them in detail. [16]
7. (a) Write a note on pressure switches.
(b) With a neat diagram explain how a Purged System operates for the measure- ment of pressure of Viscous process fluids. [8+8]
8. Describe the construction of a venturimeter with a figure showing clearly the pres- sure tap connections. Explain the salient features of the working of venturimeter. [16]
? ? ? ? ?
2
Code No: RR310805 RR Set No. 1
III B.Tech I Semester Supplementary Examinations,June 2010
PROCESS INSTRUMENTATION Chemical Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Write about methods to be followed to measure liquid level in corrosive liquids.
(b) Describe in detail the density measurement using weight method. [8+8]
2. (a) Describe the dew point method of measurement of absolute humidity.
(b) Write the principle of gas analysis by thermal conductivity. [8+8]
3. (a) Write a note on pressure switches.
(b) With a neat diagram explain how a Purged System operates for the measure-
ment of pressure of Viscous process fluids. [8+8]
4. With a neat sketch, explain the elements of an Instrument. [16]
5. Describe the construction of a venturimeter with a figure showing clearly the pres-
sure tap connections. Explain the salient features of the working of venturimeter.[16]
6. (a) What are industrial thermo couples. Give their temperature range and relative merits. (b) What are the desirable properties of thermocouples. [10+6]
7. What methods of analysis can be used for determining composition of
(a) Steels
(b) Hydrocarbon mixtures
(c) Mixture of Ammonia in air
Explain anyone of them in detail. [16]
8. (a) What is the purpose of instrumentation diagram?
(b) Explain the various symbols and their uses for instrumentation diagrams. [8+8]
? ? ? ? ?
3
Code No: RR310805 RR Set No. 3
III B.Tech I Semester Supplementary Examinations,June 2010
PROCESS INSTRUMENTATION Chemical Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Write a note on pressure switches.
(b) With a neat diagram explain how a Purged System operates for the measure-
ment of pressure of Viscous process fluids. [8+8]
2. Describe the construction of a venturimeter with a figure showing clearly the pres-
sure tap connections. Explain the salient features of the working of venturimeter.[16]
3. With a neat sketch, explain the elements of an Instrument. [16]
4. (a) Describe the dew point method of measurement of absolute humidity.
(b) Write the principle of gas analysis by thermal conductivity. [8+8]
5. (a) Write about methods to be followed to measure liquid level in corrosive liquids. (b) Describe in detail the density measurement using weight method. [8+8]
6. (a) What are industrial thermo couples. Give their temperature range and relative merits. (b) What are the desirable properties of thermocouples. [10+6]
7. (a) What is the purpose of instrumentation diagram?
(b) Explain the various symbols and their uses for instrumentation diagrams.
[8+8]
8. What methods of analysis can be used for determining composition of
(a) Steels
(b) Hydrocarbon mixtures
(c) Mixture of Ammonia in air
Explain anyone of them in detail. [16]
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