Time :3
Hours]
[Max. Marks :100
Instructions to the candidates:-
1) Answer 3 questions from
section -1 and 3 questions from section - II.
2) Answers to the two sections
should be written in separate answer books.
3) Neat diagrams must be
drawn wherever necessary.
4) Pigures to the right
indicate full marks.
5) Use of electronic &
pocket calculator is allowed.
6) Assume suitable data, if
necessary.
SECTION - I
QIA a) Explain Bathtub curve for reliability indicating all its
regions. Also explain how failure rates can be reduced in different regions of
bathtub curve. [8]
b)
Explain the terms MTBF 8 MTTF.
[4]
c)
Classify electronics products and specify approximate cost, performance ratio,
reliability and temp range for each
category.
[6]
OR
Q2) a) What are the different product approvals required while
developing a product? [4]
b)
What is exponential law of reliability? How to improve reliability of
electronic product?
[8]
Q3) a) What are the different factors, affecting on selection of
ADC 8 DAC? [8]
b) Design data acquisition system for any suitable
application.
[8]
Q4) a) Explain Instrumentation amplifier with different
specification?
[8]
b) Explain Different parameters of OpAmp while selecting it for
signal conditioning
applications?
[8]
Q5) a) What are the different touch screen technologies? Explain
each technology in short? Which type of touch screen is more popular 8 why?
[10]
b) What are different factors for selecting a particular micro
controller for given application?
[6]
OR
Q6) a) What are different buses 8 Protocols used in electronic
systems? Also mention their advantages 8 limitation leading to choice of
particular bus for given application? [10]
b) What are different LED configurations? Give suitable example
for same. [6]
SECTION – II
Q7) a) Mention factors affecting choice between assembly 8 high
levelLanguage?
[6]
b) Explain different software debugging
techniques.
[10]
OR
Q8) a) Give some details of documentation practices 8 templates
for Assembly 8 C language? [8]
b) What is the necessity of hardware test program? Give some
examples of hardware test
programs.
[8]
Q9) a) Give overviews of different EMI-EMC standards related to
conducted emissions, radiated emissions and susceptibility to
radiation.
[8]
b) Explain different design consideration while designing PCB
for high speed digital
circuits?
[8]
OR
QIO) a) Explain the precautions to be taken to minimize
interference to other circuits 8 components while designing a mixed signal
circuits (analog +
digital)?
[8]
b) A parallel plate capacitor has a capacitance c = s OerA/d.
Find the area (A) required to form a 2.2 pf to form capacitance if d of the
plate separate is 11.6mm (a typical PCB thickness) & e r for PCB laminate
is about 6. [8]
Qll)a) Explain selection criteria of frequency bands in various
applications. Also mention reason for selecting particular band for particular
application. [10]
b) Explain detail working of any one type of
PLL.
[8]
OR
Ql2)a) What is communication link analysis? Explain various
sources of signal loss and noise. [8]
b) Write a short note
on:
[10]
i)
Equalizer.
ii)
Interleaver.
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