Post on 11-Jan-2023
Analog Electronic Circuits [15MEC31T ]
Question Bank – Unit Wise
Department of Electronics & Communication Engineering, Jain Polytechnic Belagavi
Unit – 1 Power supplies
1 State the role of different sub-circuits of a DC regulated
power supply.
5M
Nov-2016
May-2017
2 Explain the need for SMPS & UPS. 5M Nov-2016
3 Explain the operation of half wave rectifier with waveforms. 5M Nov-2016
4 With a neat block diagram, Explain the working of on-line
UPS.
5M
Nov-2016
May-2017
5 Show mathematically that the efficiency of bridge rectifier is
81.2% and ripple factor is 0.48.
10M Nov-2016
6 Sketch and explain full wave center tapped rectifier circuit. 5M May-2017
Nov-2017
7 Show mathematically the ripple factor of a half wave rectifier
is 1.21.
5M May-2017
8 Explain the working of π-filter with half wave rectifier 5M May-2017
9 Explain IC voltage Regulator using LM-317. 5M May-2017
10 Define Regulator & explain the need for voltage regulators in
power supplies.
5M Nov-2017
11 Show mathematically the ripple factor of a bridge rectifier is
0.48.
5M Nov-2017
12 Define UPS. With a neat block diagram explain the working
principle of online & offline UPS.
10M Nov-2017
13 Explain the SMPS with neat block diagram. 5M Nov-2017
14 Describe the working of full wave rectifier with c filter circuit
diagram and waveforms
5M May-2018
15 List any five IC voltage regulator and mention their rated
output voltage levels
5M May-2018
16 (a) Explain the functioning of of-lin UPS with block diagram (b) List applications of SMPS and DC regulator power supply
10M May-2018
17 (a) Illustrate the need for zener diode as a voltage
regulator
(b) Define
(i)Rectification (ii)Ripple factor (iii) Ripple frequency
(iv)PIV (v) Efficiency
10M May-2018
Unit-2 BJT Biasing and amplifiers
1 On the output characteristics of BJT, show the region of
operation of (i) an amplifier (ii) a switch.
5M Nov-2016
2 Show that total gain is equal to the product of gains of
individual stages in a multi-stage amplifier.
5M Nov-2016
3 Explain the voltage divider bias for BJT amplifier. 5M Nov-2016
4 Describe the working of class-B push pull amplifier. 5M Nov-2016
5 Sketch the frequency response plot of an RC coupled
amplifier and explain the same.
5M Nov-2016
6 List the features of a transformer coupled amplifier. 5M Nov-2016
7 Define biasing of BJT and explain need for biasing. 5M May-2017
8 Explain the operation of transformer coupled class-A power 5M May-2017
Analog Electronic Circuits [15MEC31T ]
Question Bank – Unit Wise
Department of Electronics & Communication Engineering, Jain Polytechnic Belagavi
amplifier.
9 Explain the concept of AC load line for large signal
amplifiers.
5M May-2017
10 Describe the working of class-AB amplifier. 5M May-2017
11 Explain the working of common emitter RC coupled amplifier 5M May-2017
12 Tabulate the efficiencies and conduction angles of power
amplifiers.
5M May-2017
13 Define amplification, gain, frequency response, bandwidth &
input impedance as applicable to amplifier.
5M Nov-2017
14 Explain the principle of transistor as an amplifier. 5M Nov-2017
15 Define operating point & describe the role of DC load line to
locate it.
5M Nov-2017
16 Explain the working of class-A series fed amplifier 5M Nov-2017
17 Explain the features of RC coupled amplifier. 5M Nov-2017
18 Define operating point. Describe the role of DC load line in
locating it
5M May-2018
19 Classify Amplifiers 5M May-2018
20 (a) Compare power amplifiers with reference to conduction
angle and efficiency
(b) explain the principle of operation of transistor as an
amplifier
10M May-2018
21 (a) Modify class B push-pull amplifer to overcome cross-
over distortion
(b) Establish the relation between gains of individual
stages and overall gain in a multi stage amplifier
10M May-2018
Unit-3 OP-AMP and applications
1 Define i) CMRR ii) Gain iii) Gain-bandwidth product iv) Slew
rate v) Input impedance for an op-amp.
5M Nov-2016
2 Explain the operation of op-amp comparator with waveforms. 5M Nov-2016
3 Construct op-amp integrator and sketch its response for square
wave input.
5M Nov-2016
4 Show that gain of an inverting amplifier is –Rf/Ri. 5M Nov-2016
5 Construct an op-amp circuit to add two voltages and amplify the
same by 10 times.
5M Nov-2016
Analog Electronic Circuits [15MEC31T ]
Question Bank – Unit Wise
Department of Electronics & Communication Engineering, Jain Polytechnic Belagavi
6 If Vin=2V, R1 and R2 are 5KΩ, find the output voltage and
voltage gain for the given circuit.
5M Nov-2016
7 Explain the block diagram of op-amp. 5M May-2017
8 List any 5 ideal characteristics of op-amp. 5M May-2017
9 Define the following w.r.t. op-amp: i) input offset voltage ii)
CMRR iii) input impedance iv) slew rate v) PSRR
5M May-2017
Nov-2017
10 Construct an op-amp circuit that converts square wave into
triangular wave.
5M May-2017
11 Explain the working of Schmitt trigger circuit using op-amp; and
also sketch the hysteresis plot.
5M May-2017
Nov-2016
12 Estimate the gain in the following circuit given Ri=1kΩ,
Rf1=Rf2=10kΩ.
5M May-2017
13 List the applications of op-amp. 5M Nov-2017
14 Sketch op-amp voltage follower circuit & explain it. 5M Nov-2017
15 Construct and label an inverting amplifier circuit for a voltage
gain of 10.
5M Nov-2017
16 Demonstrate how op-amp can be used as a differentiator. 5M Nov-2017
Analog Electronic Circuits [15MEC31T ]
Question Bank – Unit Wise
Department of Electronics & Communication Engineering, Jain Polytechnic Belagavi
17 Discuss the relevance of CMRR and slew rate in op-amp
application
5M May-2018
18 Construct an op-amp integrator circuit to and explain 5M May-2018
19 (a) List the ideal characteristics of op-amp
(b) Discuss the concept of precision rectification and realize it
using op-amp
10M May-2018
20 (a) Suggest a method to add voltages together and amplify the
same with the help of op-amp
(b) If Vin=2v, find (Vo&Av) output voltage and gain for the
given circuit.
10M May-2018
Unit-4 Active filters and instrumentation amplifier
1 Define active filter and mention its classification. 5M Nov-2016
Nov-2017
2 Construct first order high pass filter circuit with cut-off
frequency of 10kHz and sketch its frequency response.
5M Nov-2016
3 Describe how BPF can be realized using LPF & HPF. 5M Nov-2016
Nov-2017
4 Explain the need for an operation of instrumentation amplifier. 5M Nov-2016
Nov-2017
5 List any 5 advantages of active filter over passive filters. 5M May-2017
6 Illustrate how BEF can be realized using LPF & HPF. 7,5M May-2017
Nov-2017
7 List any 3 applications of active filter. 3M May-2017
8 Explain the operation of PLL with a neat diagram. 6,5M May-2017
Nov-2017
9 Design a first order butter worth LPF circuit for a gain of 10M,
cut-off frequency of 1KHz.
4M May-2017
10 Design a first order butter worth LPF circuit for a gain of 10,
cut-off frequency of 160KHz.
5M May-2017
11 Explain the need for instrumentation amplifier 5M May-2018
12 (a) Define active filter and mention its classification
(b) Explain the operation of PLL and mention its application
10M May-2018
13 (a) Sketch the frequency response plot and circuit of an po-
amp LPF circuit
(b) List the advantages and disadvantages of active filter
over passive filters
10M May-2018
Analog Electronic Circuits [15MEC31T ]
Question Bank – Unit Wise
Department of Electronics & Communication Engineering, Jain Polytechnic Belagavi
Unit-5 Wave-shaping circuits
1 Briefly describe the working of positive clipper with a circuit
design and waveforms.
5M Nov-2016
2 Explain simple positive clamper clamper circuit. 5M Nov-2016
May-2017
Nov-2017
3 Illustrate the operation of RC differentiator circuit. 5M May-2017
4 List any 5 applications of chipper circuit. 5M May-2017
5 Compare clipper and clamper circuit. 5M Nov-2017
6 Explain negative shunt clipper. 5M Nov-2017
7 Explain the operation of combination clipper 5M May-2018
8 (a) Describe the working of rc differentiator.
(b) Define clamper. Explain the working of a positive
clamper with waveform.
10M May-2018
Unit-6 Sinusoidal oscillators
1 Compare RC oscillators with LC oscillators. 5M Nov-2016
2 Explain barkhausen criteria as applicable to oscillator circuits. 5M Nov-2016
3 Explain the working of Hartley oscillator with neat diagram. 5M Nov-2016
4 Describe how oscillations develop in LC tank circuit with a
suitable sketch.
5M May-2017
5 Explain the working of wean-bridge oscillator with neat
diagram.
5M May-2017
6 Hartley oscillator circuit C=5M00pf, L1=20mH and L2=
5MmH find i) frequency of oscillation ii) sketch Hartley
oscillator circuit using BJT.
4M May-2017
7 Discuss the role of tank circuit in oscillator circuit. 5M Nov-2017
8 Draw & explain RC phase shift oscillator. 5M Nov-2017
9 Explain the working of collpitts oscillator. 5M Nov-2017
10 Draw the Wein bridge oscillator circuit and write the
expression for frequency of oscillations
5M
11 (a) Explain the role of RC network in RC phase shift
oscillator and write and expression for frequency of
oscillation
(b) Design LC circuit for Hartley and Colpitts oscillators
to oscillate at 600KHZ.
10M May-2018
DIGITAL ELECTRONICS (15EC32T)
Department of Electronics and Communication engg. Jain polytechnic Belagavi
UNIT 1 Combinational logic circuits
1 Define Combinational logic Circuit. List any three Combinational logic
circuits.
5M.Nov/Dec-2016
2 Explain the working of 2:1 Mux with logic circuit. 5M.Nov/Dec-2016
3 Explain the operation of 1:2 Demultiplexer using gates. 5M. Nov/Dec-2016
5M.Nov/Dec-2017
4 Write a logic diagram, T.T. & logic symbol of BCD to Decimal
decoder.
5M.Nov/Dec-2016
5 Illustrate the concept of 4-bit priority encoder with truth table & logic
symbol.
5M.Nov/Dec-2016
6 Define Multiplexer. explain the working of 4:1 multiplexer with
suitable diagram .
5M. Apr/May-2017
7 Construct & Explain the working operation of 1 to 8 De-multiplexer. 10M. Apr/May-2017
8 With the help of circuit & truth table, explain the working of Decimal
to BCD encoder.
10M. Apr/May-2017
10M.Nov/Dec-2017
10M. Apr/May-2018
9 Show that to implement AND function using a 4:1 mux IC. 5M.Nov/Dec-2017
10 Demonstrate BCD to seven segment decoder with suitable logic symbol
and truth table.
5M.Nov/Dec-2017
10M.Apr/May-2018
11 Define decoder. list applications of decoder. 5M.Apr/May-2018
UNIT 2 Basic sequential circuits
1 Define flip-flop list types of flip-flops. 5M.Nov/Dec-2016
2 Demonstrate conversion of JK flip-flop into T flip-flop. 5M.Nov/Dec-2016
3 List the features of 555 timer IC. 5M.Nov/Dec-2017
5M.Nov/Dec-2016
3M. Apr/May-2018
4 Write a circuit diagram & waveform of monostable multivibrator by
using 555 timer IC.
5M.Nov/Dec-2016
10M. Apr/May-2017
5 Explain JK flip-flop with the help of logic diagram, truth table and
timing digram.
5M.Nov/Dec-2016
5M. Apr/May-2017
10M. Apr/May-2018
6 Compare Combinational & Sequential circuits. 5M. Apr/May-2017
7 What is race-around problem.mention it’s remedies. 5M. Apr/May-2017
5M. Apr/May-2018
8 Describe different types of triggering used in flip-flops. 5M.Nov/Dec-2017
9 Write & explain logic diagram of RS flip-flop using NAND gates & it’s
truth table.
5M.Nov/Dec-2017
10 List the applications of 555 timer IC. 5M.Nov/Dec-2017
11 Demonstrate 555 timer IC as a monostable multivibrator 5M.Nov/Dec-2017
12 Explain with the help of circuit diagram of astable multivibrator using
IC 555 timer.
07M. Apr/May-2018
UNIT 3 Registers and counters
1 Define shift registors & mention the different types of shift registors
based on data movement.
5M.Nov/Dec-2016
DIGITAL ELECTRONICS (15EC32T)
Department of Electronics and Communication engg. Jain polytechnic Belagavi
2 Compare the difference between Asynchronous & Synchronous
counter.
5M. Nov/Dec-2016
5M. Nov/Dec-2017
3 Explain 4-bit SISO shift register. 5M. Nov/Dec-2017
5M. Apr/May-2018
4 List the application of counter. 5M. Nov/Dec-2017
5 Explain the construction of 3-bit Asynchronous counter with help of
logic diagram ,truth table & waveform.
10M. Nov/Dec-2016
6 Construct 4-bit Johnson counter with suitable logic diagram & truth
table.
5M. Apr/May-2017
7 Explain how to configure the IC 7490 as a decoder counter. 5M. Apr/May-2017
8 Construct & explain the operation of 3-bit SISO & SIPO shift register. 10M. Apr/May-2017
9 Design & explain the MOD 6 Asynchronous counter with the help of
circuit diagram & truth table.
10M. Apr/May-2017
10 Describe the concept of universal shift registers. 5M. Nov/Dec-2017
11 Construct parallel in-parallel out, shift register. 5M. Nov/Dec-2017
12 Construct 4 bit Asynchronous counter. explain it’s functioning with
help of truth table & timing waveforms.
10M. Nov/Dec-2017
13 Define registor. list application of shift registors. 5M. Apr/May-2018
5M. Nov/Dec-2017
14 Explain ring counter with diagram and truth table. 5M. Apr/May-2018
15 State modulus of a counter. explain configuration of decade counter
using IC 7490 and write logic diagram and truth table.
10M. Apr/May-2018
UNIT 4 D to A and A to D converters
1 Distinguish between ADC & DAC. 5M. Nov/Dec-2016
2 List the features of DAC-0808 IC. 5M. Nov/Dec-2016
3 Calculate % resolution & voltage resolution of 12-bit ADC having full
scale analog I/P of 5v.
5M. Nov/Dec-2016
4 Construct dual slope ADC & explain function with help of logic
diagram & waveform.
10M. Nov/Dec-2016
10M. Apr/May-2017
10M. Apr/May-2018
5 Define: (a) resolution (b) Accuracy (c) monotonocity with respect to
DAC.
5M. Apr/May-2017
6 ExplainR-2R ladder network of DAC with suitable circuit diagram &
expression and list it’s merits.
10M. Apr/May-2017
10M. Nov/Dec-2017
7 List the applications of DAC and ADC. 5M. Apr/May-2017
8 Define conversion time, resolution, Accuracy & quantization error with
reference to ADC.
5M. Nov/Dec-2017
5M. Apr/May-2018
9 List the features of ADC IC-0808. 5M. Nov/Dec-2017
10 Find the output voltage from a 5-bit R-2R ladder that has a digital input
of 11010.assume that 0=0v and 1=+10v.what is full scale output
voltage?
5M. Nov/Dec-2017
11 List the application of DAC. 5M. Apr/May-2018
12 List specifications of DAC. 5M. Apr/May-2018
UNIT 5 Memories and programmable devices
1 List the types of programmable logic Devices(PLD). 5M. Nov/Dec-2016
2 List the comparison between SRAM and DRAM. 5M. Nov/Dec-2016
DIGITAL ELECTRONICS (15EC32T)
Department of Electronics and Communication engg. Jain polytechnic Belagavi
5M. Apr/May-2017
3 Implement two input EX-OR gate function using PAL. 5M. Nov/Dec-2016
4 A semi-conductor memory chip is specified 2K x 8.
(i)How many bit can this chip store?
(ii)How many addreslines are required to access this chip?
5M. Nov/Dec-2016
5 Write a note on flash memory. 5M. Nov/Dec-2016
5M. Nov/Dec-2017
5M. Apr/May-2018
6 Describe the working principle of SRAM. 5M. Apr/May-2017
7 Realize the full adder using PROM. 5M. Apr/May-2017
8 Explain the expanding of word size and capacity of memories with an
example.
10M. Apr/May-2017
5M. Apr/May-2018
9 Define the terms: (i) Memory address (ii) Memory read operation (iii)
Memory write operation.
5M. Nov/Dec-2017
10 Show that the PAL type array should be programmed to implement
function Y=ABC+ABC.
5M. Nov/Dec-2017
11 Explain the block diagram of PLD with neat diagram. 10M. Nov/Dec-2017
12 Explain Dynamic Random Access Memory Cell. 5M. Apr/May-2018
13 Compare fixed logic device and programmable logic device. 5M. Apr/May-2018
14 Implement and explain full adder using PAL write logic diagram and
truth table.
5M. Apr/May-2018
UNIT 6 Digital integrated circuits
1 Define fan in, fan out & propagation of delay. Power dissipation and
noise margin with respect to logic gates.
5M. Nov/Dec-2016
5M. Apr/May-2017
5M. Apr/May-2018
2 Give the classification of logic families. 5M. Nov/Dec-2016
3 Explain the CMOS inverter gate with circuit diagram. 5M. Nov/Dec-2016
5M. Nov/Dec-2017
4 List the five comparisons between TTL logic devices with CMOS logic
devices.
5M. Apr/May-2017
5M. Apr/May-2018
5 Explain the operation of TTL NAND gate with circuit & truth table. 5M. Apr/May-2017
5M. Apr/May-2018
6 List the features & merits of TTL logic . 5M. Nov/Dec-2017
7 Explain the interfacing of CMOS to TTL interface using 5v supply
voltage.
5M. Nov/Dec-2017
Analog Communication [15EC33T]
Question Bank – Unit Wise
Department of Electronics and Communication Engineering, Jain Polytechnic Belagavi
Unit 1: Network Theorem
1 State the Superposition Theorem. List the Steps to be
followed to solve a network. 5M Nov/Dec 2016
2 State and Explain Norton’s Theorem with an example. 5M Nov/Dec 2016
3 Find the Current through 10Ω resistor by using Thevenin’s
Theorem.
10M Nov/Dec 2016
4 Determine the value of load resistance R for Transferring
Maximum power to it in the circuit shown below. Also find
maximum power delivered to it.
10M Nov/Dec 2016
5 State and Explain Superposition Theorem. 5M April/May 2017
6 State Norton’s Theorem and write the steps to solve the
network using Norton’s Theorem.
5M April/May 2017
7 Find the current through 4Ω resistor, using Thevenin’s
Theorem.
10M April/May 2017
8 Illustrate the application of maximum power transfer
theorem.
State and explain maximum power transfer theorem.
10M
5M
April/May 2017
April/May 2018
9 State and explain Thevenin’s Theorem with an example.
State Thevenin’s theorem. Write the steps to reduce any
linear network into its equivalent Thevenin’s network.
5M
10M
Nov/Dec 2017
April/May 2018
10 List the steps to solve a simple DC network for maximum
power transfer. 5M Nov/Dec 2017
11 Find the current through 6Ω resistor of a network by using
superposition theorem. Also find the power through 6Ω
resistor.
10M Nov/Dec 2017
Analog Communication [15EC33T]
Question Bank – Unit Wise
Department of Electronics and Communication Engineering, Jain Polytechnic Belagavi
12 Find the current through load resistor R using Norton’s
Theorem.
10M Nov/Dec 2017
13
Draw the Norton’s equivalent circuit for the network shown
in the figure across 4ohm load.
5M April/May 2018
14 Using norton’s theorem find the current through 8ohm
resistor for the circuit shown in the figure.
10M April/May 2018
Unit 2: Resonance, Filters and Attenuators
1 Define Filter and classify filters. 5M Nov/Dec 2016
2 Derive the relation between decibel and neper. 5M Nov/Dec 2016
3 Design a low pass filter (T and π type) to have a cut-off
frequency of 800Hz and load impedance of 900Ω.
10M Nov/Dec 2016
4 Write the block diagram to realize BPF and BRF using
LPF and HPF.
10M Nov/Dec 2016
5 Derive an expression for series resonant frequency.
Derive the expression for resonant frequency for a series
5M
5M
April/May 2017
April/May 2018
Analog Communication [15EC33T]
Question Bank – Unit Wise
Department of Electronics and Communication Engineering, Jain Polytechnic Belagavi
resonant circuit.
6 Define filter, and give the classification of filters 5M April/May 2017
7 Derive expression for frequency of resonance, Q factor,
Power Factor, Bandwidth and Selectivity for parallel
resonance.
10M April/May 2017
8 Design a symmetrical T-type and π Type attenuator whose
attenuation factor of 30db and characteristics resistance is
600Ω and Sketch the circuit.
10M April/May 2017
9 What is a Attenuator. Classify Attenuator.
Write a note on Attenuators.
5M
5M
Nov/Dec 2017
April/May 2018
10 Define Q factor and Bandwidth of series resonant circuit. 5M Nov/Dec 2017
11 Derive the expression for resonance frequency and Q
factor for a series resonance circuit. 10M Nov/Dec 2017
12 Design T and π Type attenuator having attenuation of
40dBand characteristics impedance of 600Ω 10M Nov/Dec 2017
13 (a) Design constant KT type LPF with cut-off frequency
4KHz and characteristics impedance of 600ohm.
(b) Explain parallel resonance with neat diagram
10M April/May 2018
14 (a) A series RLC circuit consists L=15.8mH, C=0.1uF and
R=10ohm and line voltage V=10V as shown in fig. Find
resonant frequency and current at resonance.
(b) Mention the applications of attenuator.
10M April/May 2018
Unit 3: Transmission Lines
1 Define Characteristics impedance. Define an equation of
Z0 for Co-axial cable. 5M Nov/Dec 2016
2 Explain the need for impedance matching in transmission
line. 5M Nov/Dec 2016
April/May 2018
3 Explain electrical model for a transmission line. 10M Nov/Dec 2016
4 What are the primary and secondary constants of
transmission line. 5M April/May 2017
5 Write a note on single and double stub matching. 5M April/May 2017
April/May 2018
Analog Communication [15EC33T]
Question Bank – Unit Wise
Department of Electronics and Communication Engineering, Jain Polytechnic Belagavi
6 What are transmission lines. Mention their classification
and explain any one of them with neat figure.
10M April/May 2017
7 Write a note on secondary constant of a transmission line. 5M Nov/Dec 2017
8 What is standing wave ratio. Derive its expression. 5M Nov/Dec 2017
9 Explain single and double stub matching with neat
diagram.
10M Nov/Dec 2017
10 Explain Co-axial cable with diagram. 5M April/May 2018
11 Define reflection Co-efficient and Standing Wave Ratio. 5M April/May 2018
Unit 4: Antennas and Wave Propagation
1 Describe Ground Wave Propagation. 5M Nov/Dec 2016
April/May 2018
2 Explain the working of Broadside array.
Or
Explain Broadside array with neat diagram.
Or
Explain briefly the working of broadside antenna array.
5M
10M
5M
Nov/Dec 2016
Nov/Dec 2016
April/May 2017
3 Compare different mode of wave propagation.
Or
Compare the modes of wave propagation.
5M
5M
Nov/Dec 2016
Nov/Dec 2017
4 Write two merits and three demerits of ground wave
propagation.
5M April/May 2017
5 Explain briefly the working of end fire array. 5M April/May 2017
6 Explain the working of parabolic reflector. 5M April/May 2017
April/May 2018
7 Define the following:
a. Polarization
b. Radiation Pattern
c. Directivity of an Antenna.
5M Nov/Dec 2017
8 Describe ionosphere propagation with a neat sketch of
layer diagram. 10M Nov/Dec 2017
9 (a) Write features of the Yagi-uda antenna.
(b) Define polarization and isotropic radiators, directivity,
power gain, and antenna resistance.
10M April/May 2018
Unit 5: Amplitude Modulation and Demodulation.
1 Define amplitude modulation. Write expression for the
components present in AM output. 5M Nov/Dec 2016
April/May 2018
2 List the difference between AM and FM. 5M Nov/Dec 2016
3 Define Modulation. Explain need for modulation. 5M Nov/Dec 2016
Nov/Dec 2017
April/May 2018
4 Define Demodulation and explain the working of AM
linear diode detector circuit. 10M Nov/Dec 2016
Analog Communication [15EC33T]
Question Bank – Unit Wise
Department of Electronics and Communication Engineering, Jain Polytechnic Belagavi
5 Explain the electronics Communication system with block
diagram.
5M April/May 2017
Nov/Dec 2017
6 Explain the need for modulation and list the modulation
techniques.
5M April/May 2017
7 Explain AM linear diode detector circuit. 5M April/May 2017
April/May 2018
8 Explain working principle of
a. SSBSC
b. DSBSC
10M April/May 2017
9 A sinusoidal carrier voltage Vc=100cos2π106t is amplitude
modulated by sinusoidal voltage Vm=32cos2π106t
Find:
a. Percentage of modulation.
b. Frequency and amplitude of each side band.
c. RMS value of modulated carrier voltage.
10M Nov/Dec 2017
10 Write a note on VSB and mention its advantages and
disadvantages. 5M April/May 2018
11 Write a short note on SSBSC 5M April/May 2018
Unit 6: Frequency Modulation and Demodulation.
1 Explain need for Pre-emphasis and De-emphasis, along
with the circuit.
Or
Write a note on Pre-emphasis and De-emphasis circuits.
10M
5M
Nov/Dec 2016
April/May 2017
April/May 2018
2 Explain Foster Seeley Discriminator method of FM
Detector. 5M
10M
5M
Nov/Dec 2016
April/May 2017
April/May 2018
3 Explain the working of Varactor diode method of FM
generation.
5M April/May 2017
4 Explain the need for pre-emphasis with circuits and
waveforms.
10M Nov/Dec 2017
5 Explain:
a. Ratio Detector
b. Double spotting and noise figure
10M Nov/Dec 2016
6 State the demerits of FM over AM. 5M April/May 2018
7 Write a note on Ratio Detector. 5M April/May 2018
Electronic Measurements and Instrumentation [15EC34T]
Question Bank – Unit Wise Department of Electronics and & Communication, Jain Polytechnic Belagavi
Unit – 1 Basics of Measurements
1 Compare the features of AC and DC bridges. 5 Nov-2016
2 Explain how Wheatstone bridge is used for measurement of resistance and
mention its applications.
10 Nov-2016
April - 2018
3 Describe direct and indirect methods of measurements. 5 Nov-2016
4 Define error. List the different kinds of errors with respect to
measurements.
5 April-2017
5 An ammeter is used for measurement of 20mA current.
The reading obtained is 19.85mA.
Determine: (i) Absolute error, (ii) Percentage error, (iii) Accuracy.
5 April-2017
6 Explain with block diagram generalized electronic measurement system. 5
10
April-2017
Nov-2017
7 Define w.r.t measurements
(i) Speed of response
(ii) Dynamic error
(iii) Accuracy
(iv) Fidelity
(v) Resolution
5 Nov-2017
8 Set of 5 independent voltage measurements are as follows 10.15V, 10.10V,
10.19V, 10.13V, 10.12V, Calculate the arithmetic mean and average
deviation.
5 Nov-2016
April – 2018
9 Discuss Arithmetic Mean, Deviation from the Mean, Avg Deviation, Std
Deviation and Variance used in statistically analysis measurement of
instruments.
5 April-2017
Unit – 2 Transducers
1 List the factors for selection of a Transducer. 5
5
Nov-2016
Nov-2017
April – 2018
2 Explain the working principle of capacitive transducer. 5 Nov-2016
3 Sketch LVDT and explain the working principle. 5 Nov-2016
4 Write a note on PIR sensors. 5 Nov-2016
5 Explain briefly the Strain gauge transducer. 5 April-2017
6 Describe active and passive transducer. Give one example for each. 5 Nov-2016
7 Illustrate how load cell can be used for measuring Force. 5 Nov-2016
8 Explain how piezoelectric material can be used as a transducer. List any
two piezoelectric materials.
5 Nov-2016
9 Explain the principle of working of thermocouple. 5 April-2017
10 Explain working principle of piezo-electric transducer. 5 April-2017
April - 2018
11 Write about Proximity sensor. 5 April-2017
Unit – 3 Analog Meters
1 List pros and cons of electronic voltmeter. 5
5
Nov-2016
Nov-2017
2 Explain:
(i) Voltage sensitivity.
(ii) Load effect of voltmeter.
5 Nov-2016
April- 2018
Electronic Measurements and Instrumentation [15EC34T]
Question Bank – Unit Wise Department of Electronics and & Communication, Jain Polytechnic Belagavi
3 Differentiate PMMC over Electrodynamometer. 5 Nov-2016
4 Describe DC Ammeter with extension of range. 5 Nov-2016
5 Explain the working principle of PMMC meter. 5 April-2017
6 Explain the working of AC voltmeter using Full wave rectifier. 5 April-2017
7 Define Calibration. Describe the process of calibration of DC voltmeter. 5 April-2017
8 Explain the working of Electrodynamometer type voltmeter. 5 April-2017
9 Explain with neat block diagram the working of solid state voltmeter using
op-amp.
10
5
April-2017
Nov-2017
10 Discuss the concept of calibration of meters. 5 April-2017
11 List the features of spectrum analyzer. 5 April-2017
12 Explain electrodynamometer with its construction and working principle. 5 Nov-2017
13 Explain series and shunt type ohmmeters. 5 Nov-2017
Unit – 4 Testing Instruments
1 List the features of standard RF signal generator. 5
5
Nov-2016
Nov-2017
2 List the Advantages and applications of Digital storage oscilloscope. 5 Nov-2016
April – 2018
3 Illustrate with block diagram a typical function generator and list its
applications
10 Nov-2016
4 List the features of wave analyzer. 5 Nov-2016
5 List the advantages and applications of sampling oscilloscope. 5 Nov-2016
6 Sketch the block diagram of digital storage oscilloscope. List any two
advantages of digital storage oscilloscope.
5 April-2017
Nov-2017
7 Explain the concept of dual trace in CRO. 5 April-2017
April 2018
8 Define a CRO probe. List the various types of CRO probes. 5
5
April-2017
Nov-2017
9 Explain the working of CRT with a neat Sketch. 5 Nov-2017
Unit – 5 Digital Meters
1 Explain with block diagram microprocessor based instruments. 5 Nov-2016
2 Describe successive approximation digital voltmeter. 5 Nov-2016
3 Show how decade counter is used in different modes as electronic counter. 10 Nov-2016
4 Discuss how is automatic polarity indication and automatic zeroing in
digital instruments.
5 Nov-2016
5 List the features of digital meters. 5 April-2017
6 Explain how electronic counter can be used for totalizing. 5 April-2017
7 Explain how a ramp type DVM can be used for measuring voltage. 10 April-2017
April- 2018
8 List the applications of Digital LCR meters. 5 April-2017
April 2018
9 Sketch and explain with block diagram digital frequency meter. 10 April-2017
10 Explain how grounding reduces interference in measuring instruments. 5 Nov-2017
11 Describe with block diagram how time interval measurements can be
done.
5 Nov-2017
12 Describe with block diagram how digital LCR meter is used for 10 Nov-2017
Electronic Measurements and Instrumentation [15EC34T]
Question Bank – Unit Wise Department of Electronics and & Communication, Jain Polytechnic Belagavi
measurements.
13 State the pros and cons of digital instruments. 5 Nov-2017
Unit – 6 Instruments Maintenance
1 Write a short note on grounding and shielding. 5 Nov-2016
2 Write about precaution for instrument safety and instrument usage. 10 Nov-2016
3 Discuss the precautions to be taken to prevent instrument damage. 5 April-2017
4 Illustrate the procedure of generalized troubleshooting. 5 April-2017
Nov 2017
April 2018
5 Explain how grounding reduces interference in measuring instruments. 5 Nov-2017
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