II B.Tech I Semester Supplimentary Examinations,Nov/Dec 2009 TRANSDUCERS AND INSTRUMENTATION COMPONENTS Instrumentation And Control Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain with a block diagram an instrumentation system and explain the function of various blocks. [12M]
ld .
(b) The dead-zone of a certain plyrometer is 0.125 percent of the span. The calibration is 800o C to 1800o C what temperature change must occur before it is detected? [4M] 2. (a) What is velocity rates as applied to belt drives.
[4M]
[8M]
(c) Explain the effect of slip on the performance of the belt drive.
[4M]
3. (a) Discriminate between ordinary electric motors and Servo motors.
[4M]
or
(b) Derive the expression for velocity rate of belt drive.
uW
(b) Briefly explain the working of D.C and A.C servomotors with neat sketches. [12M] 4. (a) Differentiate between a potentiometer and a rheostat.
[4M]
(b) What is the difference between voltage and current transducers.
[6M]
(c) Mention two uses of each of current and voltage transducers.
[6M]
5. Explain the principle of working of thermocouples. State the law of intermediate temperature and intermediate metals for thermocouples. [16M]
nt
6. (a) How does a force balance controller differ from the motion balance controller. [8M] (b) Explain the essential difference between the hydraulic and pneumatic controllers. Enumerate the advantages and limitations of each controller? [8M]
Aj
7. (a) Explain how a thermo couple is used to measure temperature.
[8M]
(b) List and explain the three laws of thermo couples.
[4M]
(c) What are the common materials used for thermo couples.
[4M]
8. (a) Describe the properties of materials used for Piezo-electric transducers. [4M] (b) Derive the expressions for voltage and charge sensitivities. ?????
1
[12M]
Code No: 23028
RR
Set No - 2
in
II B.Tech I Semester Supplimentary Examinations,Nov/Dec 2009 TRANSDUCERS AND INSTRUMENTATION COMPONENTS Instrumentation And Control Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Explain the principle of working of thermocouples. State the law of intermediate temperature and intermediate metals for thermocouples. [16M]
ld .
2. (a) Describe the properties of materials used for Piezo-electric transducers. [4M] (b) Derive the expressions for voltage and charge sensitivities.
[12M]
3. (a) Explain with a block diagram an instrumentation system and explain the function of various blocks. [12M]
or
(b) The dead-zone of a certain plyrometer is 0.125 percent of the span. The calibration is 800o C to 1800o C what temperature change must occur before it is detected? [4M] 4. (a) What is velocity rates as applied to belt drives.
uW
(b) Derive the expression for velocity rate of belt drive.
[4M] [8M]
(c) Explain the effect of slip on the performance of the belt drive.
[4M]
5. (a) Discriminate between ordinary electric motors and Servo motors.
[4M]
(b) Briefly explain the working of D.C and A.C servomotors with neat sketches. [12M] 6. (a) Explain how a thermo couple is used to measure temperature.
nt
(b) List and explain the three laws of thermo couples. (c) What are the common materials used for thermo couples.
7. (a) Differentiate between a potentiometer and a rheostat.
[8M] [4M] [4M] [4M] [6M]
(c) Mention two uses of each of current and voltage transducers.
[6M]
Aj
(b) What is the difference between voltage and current transducers.
8. (a) How does a force balance controller differ from the motion balance controller. [8M] (b) Explain the essential difference between the hydraulic and pneumatic controllers. Enumerate the advantages and limitations of each controller? [8M] ?????
2
Code No: 23028
RR
Set No - 3
in
II B.Tech I Semester Supplimentary Examinations,Nov/Dec 2009 TRANSDUCERS AND INSTRUMENTATION COMPONENTS Instrumentation And Control Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain how a thermo couple is used to measure temperature. (b) List and explain the three laws of thermo couples.
[4M]
[4M]
ld .
(c) What are the common materials used for thermo couples.
[8M]
2. (a) Explain with a block diagram an instrumentation system and explain the function of various blocks. [12M]
or
(b) The dead-zone of a certain plyrometer is 0.125 percent of the span. The calibration is 800o C to 1800o C what temperature change must occur before it is detected? [4M] 3. (a) What is velocity rates as applied to belt drives.
[4M] [8M]
(c) Explain the effect of slip on the performance of the belt drive.
[4M]
uW
(b) Derive the expression for velocity rate of belt drive.
4. (a) How does a force balance controller differ from the motion balance controller. [8M] (b) Explain the essential difference between the hydraulic and pneumatic controllers. Enumerate the advantages and limitations of each controller? [8M] 5. (a) Differentiate between a potentiometer and a rheostat.
[4M] [6M]
(c) Mention two uses of each of current and voltage transducers.
[6M]
6. (a) Discriminate between ordinary electric motors and Servo motors.
[4M]
nt
(b) What is the difference between voltage and current transducers.
Aj
(b) Briefly explain the working of D.C and A.C servomotors with neat sketches. [12M]
7. Explain the principle of working of thermocouples. State the law of intermediate temperature and intermediate metals for thermocouples. [16M] 8. (a) Describe the properties of materials used for Piezo-electric transducers. [4M] (b) Derive the expressions for voltage and charge sensitivities. ?????
3
[12M]
Code No: 23028
RR
Set No - 4
in
II B.Tech I Semester Supplimentary Examinations,Nov/Dec 2009 TRANSDUCERS AND INSTRUMENTATION COMPONENTS Instrumentation And Control Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain how a thermo couple is used to measure temperature. (b) List and explain the three laws of thermo couples.
[4M]
[4M]
ld .
(c) What are the common materials used for thermo couples.
[8M]
2. (a) Explain with a block diagram an instrumentation system and explain the function of various blocks. [12M]
or
(b) The dead-zone of a certain plyrometer is 0.125 percent of the span. The calibration is 800o C to 1800o C what temperature change must occur before it is detected? [4M] 3. (a) Discriminate between ordinary electric motors and Servo motors.
[4M]
uW
(b) Briefly explain the working of D.C and A.C servomotors with neat sketches. [12M] 4. (a) What is velocity rates as applied to belt drives.
[4M]
(b) Derive the expression for velocity rate of belt drive.
[8M]
(c) Explain the effect of slip on the performance of the belt drive.
[4M]
5. Explain the principle of working of thermocouples. State the law of intermediate temperature and intermediate metals for thermocouples. [16M]
nt
6. (a) Describe the properties of materials used for Piezo-electric transducers. [4M] (b) Derive the expressions for voltage and charge sensitivities.
[12M]
7. (a) How does a force balance controller differ from the motion balance controller. [8M]
Aj
(b) Explain the essential difference between the hydraulic and pneumatic controllers. Enumerate the advantages and limitations of each controller? [8M]
8. (a) Differentiate between a potentiometer and a rheostat.
[4M]
(b) What is the difference between voltage and current transducers.
[6M]
(c) Mention two uses of each of current and voltage transducers.
(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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ii. Synchronous motors totaling 100HP with an average efficiency of 85% and ... RR. Set No. 2. 7. (a) Explain the principle of operation of circuit ReClosure.
Vapour pressure in mm Hg. 200 400 760 1520. T emperature0C for ethanol. 48.4 62.5 78.4 97.5. T emperature0C for methanol 34.8 49.9 64.7. 84. 3. AjntuWorld.
(a) Explain the Flag register of 8085 Microprocessor. (b) Explain the following pins of 8085 Microprocessor. i. RST 5.5 · ii. RST 6.5 · iii. READY · iv. INTA · v. X1,X2 · [6+10] · 3. (a) Define a macro for moving an arbitrary character string that en
is not to exceed 0.85 bar. External diameter of the friction plate is 1.25 times the · internal diameter. Determine the dimensions of the friction plate and the axial.
