Download AKTU B-Tech 4th Sem 2016-17 EE405 Sensor And Instrumentation Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 4th Semester (Fourth Semester) 2016-17 EE405 Sensor And Instrumentation Question Paper

Printed Pages : 2 Roll No. I I I I I I I I I I I EE405
B.TECH.
THEORY EXAMINATION (SEM?IV) 2016-17
SENSOR & INSTRUMENTATION
T ime .' 3 Hours Max. Marks .' 100
Note : Be precise in your answer. In case ofnumerical problem assume data wherever not provided.
SECTION-A
1 Explain the following: (10X2=20)
3) Compare Transducer & Inverse Transducer with example.
b) Draw characteristics for Thermocouple.
c) Explain Peltier effect in thermocouple?
(1) Write OP?Amp Ideal characteristics.
e) What is need of modulation?
1) Explain different performance parameters of Digital to Analog converter.
g) What is meant by high level and low level multiplexing? Explain the features of both
processes.
h) An 8 bit DAC has output voltage range 0?5V.?nd its resolution, accuracy
i) Draw Sample & Hold circuit & explain its purpose in Instrumentation
j) Explain different pressure sensor with examples.
SECTION-B
2 Attempt any ?ve of the following: (10X5=50)
a) Derive the Expression for Output voltage for an Active high pass filter, also find cutoff
Frequency and draw its frequency response.
b) Explain the working of Hall Effect Transducer.
c) Explain the purpose of frequency division multiplexing in telemetry system with block
diagram.
(1) Explain the Working of LCD and differentiate between light scattering and field effect
types of LCD.
e) A Strain Gauge having a Resistance of 120!) gauge factor of 2 is connected in series
with a ballast resistance of 120 Q across a 12V supply. Calculate the difference between
the output voltage (voltage across strain gauge) with no stress applied & with a stress of
140 MN/mz? Modulus of elasticity of the member undergoing strain is 200GN/ m2
1) Describe the working of Different Digital to Analog Conversion techniques
g) With the help of neat sketch explain different types of level meters also write its
advantage & disadvantages.
h) Classify different Transducer with example.
SECTION-C
Attempt any two of the following: (15X2=30)
3 Write short note on Thermocouple, write temperature range of different material ? wire use in
it. Write its advantage 7 disadvantages.
4 Derive expression for gauge factor of strain gauge ,A resistance strain gauge with gauge factor
2 is fastened to steel subjected to stress 500 kg/sq. em .if modulus of elasticity of steel is 2 * 106
kg/ cm2 ,calculate change in resistance if strain gauge element applied due to applied stress.
5 (Branch Food Tech FT)

Explain different elements of food packaging plant & explain role of robotics in the plant?
(Branch CS/IT/EC/EI/IC/AEI)
Draw A Maxwell inductance bridge ,it is use to measure inductance in comparison with
capacitance .the various value at balance are-Arm AD R2=300 0, BC R3=500 (2, CD R4: 800
(2, CD C4=0.5p F find R1, L1 and storage factor at 1000Hz.
(Branch ME)
What do you mean by interference, explain working of Interferometer use to detect the linear
movement.
(Branch EE/EN)
Explain digital modulation ? Pulse code modulation techniques.
(Branch CH)
Write short notes on ?
(a) Radiation pyrometer
(b) McLeod gauge
(Branch CE /AG)
What is current telemetry system? Describe motion and force balance current telemetering
systems with the help of neat sketches.
(Branch Textile fTT)
Explain working principle of stroboscope used in textile industry.
(Branch ENV)
Explain different Nano sensors are used in environment.