Code No: RR311003 RR Set No. 2
III B.Tech I Semester Supplementary Examinations,June 2010
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 principle of Ring type load cells?
(b) What are the specifications of Load cells? Give typical values [8+8]
2. (a) Explain specific humidity, DBT, WBT.
(b) Explain about Galvanometric Hygrometer. [8+8]
3. Describe with the help of a circuit diagram, the working of a universal frequency
counter. Explain the various functions it is capable of performing. [16]
4. (a) Distinguish between specific viscosity and relative viscosity.
(b) Explain briefly about industrial consistency meter. [8+8]
5. Describe in detail about optical method of measuring length and distance. [16]
6. Discuss briefly about the principle and specifications of the different practical Ac-
celerometers. [16]
7. Briefly explain Buoyancy method of density measurement and give its advantages, disadvantages and applications. [16]
8. (a) A variable reluctance type tachometer has 60 rotor teeth. The counter records
3600 counts per second. Determine the speed in rpm.
(b) An Inductive pick up operating from a 60 tooth wheel is used with a digital frequency meter to determine the speed of rotation of a shaft on which the wheel is mounted.The gating period is set to 104µs and a reading of 0.024 is obtained on 4 digital display. What shaft speed does this represent in r.p.s ? if the available gating periods are 102 , 103, 104 , 105, 106 , 107and10µs respectively, which would be the optimum setting of gating period for making this measurement.
(c) While measuring speed of a steam turbine with Stroboscope single line images were observed for Stroboscope setting of 3000, 4000 and 5230 rpm. Calculate the speed of the turbine. [5+6+5]
? ? ? ? ?
1
Code No: RR311003 RR Set No. 4
III B.Tech I Semester Supplementary Examinations,June 2010
INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. Describe with the help of a circuit diagram, the working of a universal frequency
counter. Explain the various functions it is capable of performing. [16]
2. Briefly explain Buoyancy method of density measurement and give its advantages,
disadvantages and applications. [16]
3. (a) A variable reluctance type tachometer has 60 rotor teeth. The counter records
3600 counts per second. Determine the speed in rpm.
(b) An Inductive pick up operating from a 60 tooth wheel is used with a digital frequency meter to determine the speed of rotation of a shaft on which the wheel is mounted.The gating period is set to 10 4µs and a reading of 0.024 is obtained on 4 digital display. What shaft speed does this represent in r.p.s ? if the available gating periods are 102 , 103, 104 , 105, 106 , 107and10µs respectively, which would be the optimum setting of gating period for making this measurement.
(c) While measuring speed of a steam turbine with Stroboscope single line images were observed for Stroboscope setting of 3000, 4000 and 5230 rpm. Calculate the speed of the turbine. [5+6+5]
4. (a) Explain specific humidity, DBT, WBT.
(b) Explain about Galvanometric Hygrometer. [8+8]
5. Discuss briefly about the principle and specifications of the different practical Ac-
celerometers. [16]
6. Describe in detail about optical method of measuring length and distance. [16]
7. (a) Distinguish between specific viscosity and relative viscosity.
(b) Explain briefly about industrial consistency meter. [8+8]
8. (a) Explain the principle of Ring type load cells?
(b) What are the specifications of Load cells? Give typical values [8+8]
? ? ? ? ?
2
Code No: RR311003 RR Set No. 1
III B.Tech I Semester Supplementary Examinations,June 2010
INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. Discuss briefly about the principle and specifications of the different practical Ac-
celerometers. [16]
2. (a) A variable reluctance type tachometer has 60 rotor teeth. The counter records
3600 counts per second. Determine the speed in rpm.
(b) An Inductive pick up operating from a 60 tooth wheel is used with a digital frequency meter to determine the speed of rotation of a shaft on which the wheel is mounted.The gating period is set to 104µs and a reading of 0.024 is obtained on 4 digital display. What shaft speed does this represent in r.p.s ? if the available gating periods are 102 , 103, 104 , 105, 106 , 107and10µs respectively, which would be the optimum setting of gating period for making this measurement.
(c) While measuring speed of a steam turbine with Stroboscope single line images were observed for Stroboscope setting of 3000, 4000 and 5230 rpm. Calculate the speed of the turbine. [5+6+5]
3. Describe in detail about optical method of measuring length and distance. [16]
4. (a) Distinguish between specific viscosity and relative viscosity.
(b) Explain briefly about industrial consistency meter. [8+8]
5. Describe with the help of a circuit diagram, the working of a universal frequency
counter. Explain the various functions it is capable of performing. [16]
6. (a) Explain the principle of Ring type load cells?
(b) What are the specifications of Load cells? Give typical values [8+8]
7. (a) Explain specific humidity, DBT, WBT.
(b) Explain about Galvanometric Hygrometer. [8+8]
8. Briefly explain Buoyancy method of density measurement and give its advantages, disadvantages and applications. [16]
? ? ? ? ?
3
Code No: RR311003 RR Set No. 3
III B.Tech I Semester Supplementary Examinations,June 2010
INDUSTRIAL INSTRUMENTATION Electronics And Instrumentation Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. Discuss briefly about the principle and specifications of the different practical Ac-
celerometers. [16]
2. (a) Distinguish between specific viscosity and relative viscosity.
(b) Explain briefly about industrial consistency meter. [8+8]
3. (a) Explain specific humidity, DBT, WBT.
(b) Explain about Galvanometric Hygrometer. [8+8]
4. Describe in detail about optical method of measuring length and distance. [16]
5. Describe with the help of a circuit diagram, the working of a universal frequency
counter. Explain the various functions it is capable of performing. [16]
6. Briefly explain Buoyancy method of density measurement and give its advantages,
disadvantages and applications. [16]
7. (a) A variable reluctance type tachometer has 60 rotor teeth. The counter records
3600 counts per second. Determine the speed in rpm.
(b) An Inductive pick up operating from a 60 tooth wheel is used with a digital frequency meter to determine the speed of rotation of a shaft on which the wheel is mounted.The gating period is set to 104µs and a reading of 0.024 is obtained on 4 digital display. What shaft speed does this represent in r.p.s ? if the available gating periods are 102 , 103, 104 , 105, 106 , 107and10µs respectively, which would be the optimum setting of gating period for making this measurement.
(c) While measuring speed of a steam turbine with Stroboscope single line images were observed for Stroboscope setting of 3000, 4000 and 5230 rpm. Calculate the speed of the turbine. [5+6+5]
8. (a) Explain the principle of Ring type load cells?
(b) What are the specifications of Load cells? Give typical values [8+8]
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