Analog Electronic Circuits [15MEC31T ] Question Bank - Jain ...

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




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




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




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




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



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



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]


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




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




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




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




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



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



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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Analog Electronic Circuits [15MEC31T ] Question Bank - Jain ...

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