SAMPLE MCQ - Watumull

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Program: T.E. (ELECTRONICS AND TELECOMMUNICATION)

Curriculum Scheme: Revised 2012(CBSGS)

Examination: Third Year Semester VI

Course Code: ETC606 and Course Name: VLSI Design

Time: 1hour Max. Marks: 50

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SAMPLE MCQ

Note to the students:- All the Questions are compulsory and carry equal marks .

Q1. Which type of CMOS circuits are good and better?Option A: p wellOption B: n wellOption C: P+ wellOption D: N+well

Q2. Wrong readings are recorded due to reset input beingOption A: dependent of clock signalOption B: independent of clock signalOption C: dependent of gate signalOption D: independent of gate signal

Q3. The fast rise and fall times give cross-talk problems ifOption A: they are in close proximityOption B: if they are far awayOption C: it always gives rise to cross-talk problemsOption D: does not allow cross-talk problems

Q4. With partitioning, bypassing is performed usingOption A: buffersOption B: multiplexersOption C: multipliersOption D: dividers

Q5. In which of the memories, does the data disappear?Option A: SRAMOption B: DRAMOption C: Flash memoryOption D: EPROM

Q6. What does VRAM stand for?Option A: video RAMOption B: Verilog RAMOption C: virtual RAMOption D: volatile RAM

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Q7. The dynamic component of power dissipation is given by:Option A: P = I2.RdOption B: P = Vdd2/RdOption C: P = Eg.foOption D: P=VI

Q8. Contact cuts are made in ____________Option A: sourceOption B: drainOption C: metal layerOption D: diffusion layer

Q9. Which is used for the interconnection?Option A: boronOption B: oxygenOption C: aluminumOption D: silicon

Q10. Maximum transit time occurs when the size of the transistor isOption A: minimumOption B: maximumOption C: does not depend on sizeOption D: double

Q11. The breakdown voltage can be reduced by _____ electric field strengthOption A: increasingOption B: decreasingOption C: does not dependOption D: exponentially decreasing

Q12. Which level of system implementation includes the specific function oriented registers, counters & multiplexers?

Option A: Module levelOption B: Logical levelOption C: Physical levelOption D: Basic level

Q13. Which among the following is/are taken into account for post-layout simulation?Option A: Interconnect delaysOption B: Propagation delaysOption C: Logic cellsOption D: Logic gates

Q14. In MOS devices, the current at any instant of time is ______of the voltage across their terminals.

Option A: constant & dependentOption B: constant & independentOption C: variable & dependentOption D: variable & independent

Q15. The scaling factor of power dissipation per unit area in constant field model is:Option A: 1Option B: 1/α2

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Option C: 1/ β.α2

Option D: α2/β2

Q16. The transit time can be given asOption A: 2dOption B: 2d/µEOption C: µE/dOption D: µE/2d

Q17. Which is the commonly used bulk substrate in nMOS fabrication?Option A: silicon crystalOption B: silicon-on-sapphireOption C: phosphorusOption D: silicon-di-oxide

Q18. Source and drain in nMOS device are isolated by ____Option A: single diodeOption B: two diodesOption C: Three diodesOption D: four diodes

Q19. Which of the following is the main factor which determines the memory capacity?Option A: number of transistorsOption B: number of capacitorsOption C: size of the transistorOption D: size of the capacitor

Q20. Who proposed the miniature card format?Option A: IntelOption B: IBMOption C: MIPSOption D: Apple

Q21. In which method regularity is used to reduce complexity?Option A: random approachOption B: hierarchical approachOption C: algorithmic approachOption D: semi-design approach

Q22. The serial shift register is driven usingOption A: one over-lapping clockOption B: two over-lapping clockOption C: one non over-lapping clockOption D: two non over-lapping clock

Q23. Which is not the function of LSSD method?Option A: eliminates hazardsOption B: eliminates racesOption C: simplifies fault generationOption D: stores the data

Q24. Pass transistor can be driven through _____ pass transistors.Option A: one

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Option B: noOption C: moreOption D: two

Q25. Which of the following can access data even when the power supply is lost?Option A: Non-volatile SRAMOption B: DRAMOption C: SRAMOption D: RAM

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Program: TE EXTC Engineering

Curriculum Scheme: Revised 2012


Course Code: ETC604 and Course Name: Television EngineeringTime: 1 hour Max. Marks: 50

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SAMPLE MCQ

Note to the students:- All the Questions are compulsory and carry equal marks .

Q1. In Composite Video signal 0 to 10% isOption A: Darker than DarkOption B: DarkOption C: Whiter than whiteOption D: White

Q2. The period of Front porch is Option A: 5.2µsOption B: 52µsOption C: 5.8µsOption D: 1.5µs

Q3. In America in NTSC system the lines per frame isOption A: 625Option B: 525Option C: 25Option D: 50

Q4. For sound modulation what is usedOption A: FMOption B: AMOption C: PMOption D: SM

Q5. In an Electron Gun Grid 2 is also called asOption A: Screen gridOption B: Control gridOption C: Focusing gridOption D: Magnetic grid

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Q6. CCIR stands forOption A: Consolidated committee for International RadioOption B: Consultative committee for International RadioOption C: Compiled committee for International RadioOption D: Cognitive committee for International Radio

Q7. In Subtractive mixing of colours white - Blue =Option A: MagentaOption B: YellowOption C: CyanOption D: violet

Q8. 0.3R+0.59G+0.11B=Option A: YOption B: IOption C: UOption D: V

Q9. MPEG & JPEG stands forOption A: Moving photographic Expert group & Joint photography Extended GroupOption B: Moving picture Expert group & Joint photographic Expert GroupOption C: Multiple picture Expert group & Joint picture Expert GroupOption D: Moving photographic Extraction group & Joint photographic Extraction Group

Q10. Which of the following is a picture tubeOption A: OrthiconOption B: VidiconOption C: PlumbiconOption D: Trintron

Q11. CVS stands forOption A: Composite video signalOption B: Colour vestigial signalOption C: Compose Vestigial signalOption D: Common video signal

Q12. The colour burst is of Option A: 2 to 12 cyclesOption B: 5 to 15 cyclesOption C: 0 to 30 cyclesOption D: 8 to 11 cycles

Q13. The difference in intensity between black and white parts of the picture over and above the brightness level is

Option A: Aspect RatioOption B: Brightness Ratio

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Option C: ContrastOption D: Contrast Ratio

Q14. ………………. Is a special application in which camera signals are made available over cable circuits to a specified destinations

Option A: HDTVOption B: CCTVOption C: UHDTVOption D: ICTV

Q15. In the 625-B monochrome TV the field frequency isOption A: 50Option B: 128Option C: 60Option D: 64

Q16. In America(NTSC) the line frequency in Hz isOption A: 15625Option B: 625Option C: 525Option D: 15750

Q17. The colour system used in FranceN(SECAM) uses which sound signal modulationOption A: AMOption B: FMOption C: PMOption D: CM

Q18. In HDTV standard the aspect ratio isOption A: 4:3Option B: 16:9Option C: 21:9Option D: 16:20

Q19. The predominant spectral colour of the received light is Option A: BrightnessOption B: HUEOption C: LuminanceOption D: Saturation

Q20. In subtractive mixing white – green =Option A: MagentaOption B: YellowOption C: CyanOption D: Black

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Q21. Frequency deviation / modulating frequencyOption A: Modulating toneOption B: Channel BandwidthOption C: Bessel functionOption D: Modulation index

Q22. In …………….picture tube there are three guns aligned in horizontal lineOption A: Delta gunOption B: PILOption C: TrintronOption D: Vidicon

Q23. Which of the following is not a type of sampling and sub samplingOption A: 4:0:0Option B: 4:4:4Option C: 4:1:1Option D: 4:2:2

Q24. The highest approximate modulating frequency that 625 lines TV system must be capable of handling for successful transmission and reception of signal is

Option A: 4MhzOption B: 4.5MhzOption C: 5 MhzOption D: 5.5Mhz

Q25. In SYNC details of the 525 line system the time taken by the field line period(H) in horizontal blanking is

Option A: 31.75µsOption B: 52µsOption C: 61.8µsOption D: 63.5µs

Program: BE Electronics and Telecommunication Engineering



Course Code: ETC603

Course Name: Computer Communication & Telecomm Networks


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SAMPLE MCQ

Note to the students: - All the Questions are compulsory and carry equal marks.

Q.No Questions:

Q.1 In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are ___________

Option A: Added

Option B: Removed

Option C: Rearranged

Option D: Modified

Q.2 The structure or format of data is called ___________

Option A: Semantics

Option B: Struct

Option C: Syntax

Option D: Formatting

Q.3 A _______ is the physical path over which a message travels.

Option A: Path

Option B: Medium

Option C: Protocol

Option D: Route

Q.4 Which of the following computer networks is built on the top of another network?

Option A: prior network

Option B: chief network

Option C: prime network

Option D: overlay network

Q.5 Device that forwards packets between networks by processing the routing information included in the packet.

Option A: bridge

Option B: firewall

Option C: router

Option D: hub

Q.6 Network congestion occurs _________

Option A: in case of traffic overloading

Option B: when a system terminates

Option C: when connection between two nodes terminates

Option D: in case of transfer failure

Q.7 Which of the following layers is an addition to OSI model when compared with TCP IP model?

Option A: Application layer

Option B: Presentation layer

Option C: Session layer

Option D: Session and Presentation layer

Q.8 Transport layer is implemented in ______________

Option A: End system

Option B: NIC

Option C: Ethernet

Option D: Signal transmission

Q.9 Which of the following statements can be associated with OSI model?

Option A: A structured way to discuss and easier update system components

Option B: One layer may duplicate lower layer functionality

Option C: Functionality at one layer no way requires information from another layer

Option D: It is an application specific network model

Q.10 Which layer is responsible for process to process delivery in a general network model?

Option A: network layer

Option B: transport layer

Option C: session layer

Option D: data link layer

Q.11 In virtual circuit network each packet contains ___________

Option A: full source and destination address

Option B: a short VC number

Option C: only source address

Option D: only destination address

Q.12 Which one of the following algorithm is not used for congestion control?

Option A: traffic aware routing

Option B: admission control

Option C: load shedding

Option D: routing information protocol

Q.13 The network layer protocol for internet is __________

Option A: ethernet

Option B: internet protocol

Option C: hypertext transfer protocol

Option D: file transfer protocol

Q.14 The data link layer takes the packets from _________ and encapsulates them into frames for transmission.

Option A: network layer

Option B: physical layer

Option C: transport layer

Option D: application layer

Q.15 Automatic repeat request error management mechanism is provided by ________

Option A: logical link control sublayer

Option B: media access control sublayer

Option C: network interface control sublayer

Option D: application access control sublayer

Q.16 Transport layer aggregates data from different applications into a single stream before passing it to

Option A: data link layer

Option B: application layer

Option C: network layer

Option D: physical layer

Q.17 User datagram protocol is called connectionless because

Option A: it sends data as a stream of related packets

Option B: all UDP packets are treated independently by transport layer

Option C: it is received in the same order as sent order

Option D: it sends data very quickly

Q.18 Which one of the following is a version of UDP with congestion control?

Option A: datagram congestion control protocol

Option B: stream control transmission protocol

Option C: structured stream transport

Option D: user congestion control protocol

Q.19 Which network topology requires a central controller or hub?

Option A: Star

Option B: Mesh

Option C: Ring

Option D: Bus

Q.20 Which of this is not a guided media?

Option A: Fiber optical cable

Option B: Coaxial cable

Option C: Wireless LAN

Option D: Copper wire

Q.21 Coaxial cable consists of _______ concentric copper conductors.

Option A: 1

Option B: 2

Option C: 3

Option D: 4

Q.22 For a 10Mbps Ethernet link, if the length of the packet is 32bits, the transmission delay is

Option A: 3.2

Option B: 32

Option C: 0.32

Option D: 320

Q.23 A local telephone network is an example of a _______ network.

Option A: Packet switched

Option B: Circuit switched

Option C: Bit switched

Option D: Line switched

Q.24 Which is not a application layer protocol?

Option A: HTTP

Option B: SMTP

Option C: FTP

Option D: TCP

Q.25 The ______ field is used to detect errors over the entire user datagram.

Option A: udp header

Option B: checksum

Option C: source port

Option D: destination port

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Program: BE Electronic and Telecommunications Engineering



Course Code: ETC 602 and Course Name: DTSP


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SAMPLE MCQ

Note to the students:‐ All the Questions are compulsory and carry equal marks .

Q1. The Z-Transform X(z) of a discrete time signal x(n) is defined as ____________

Option A:

Option B:

Option C:

Option D:

Q2. What is the z-transform of the signal x(n)= u(n)? Option A: ; ROC |z|> 0.5

Option B: ; ROC |z|< 0.5

Option C: ; ROC |z|> 0.5

Option D: ; ROC |z|< 0.5

Q3. The complex valued twiddle factor can be represented as Option A: e-i(2π/N) Option B: e-i(2πN) Option C: e-i2π Option D: e-i2πkN Q4. Overlap-Add Method Deals with principles that Option A: The linear convolution of a discrete-time signal of length L and a discrete-time

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signal of length M produces a discrete-time convolved result of length L + M - 1

Option B: The linear convolution of a discrete-time signal of length L and a discrete-time signal of length M produces a discrete-time convolved result of length L + M

Option C: The linear convolution of a discrete-time signal of length L and a discrete-time signal of length M produces a discrete-time convolved result of length 2L +M-1

Option D: The linear convolution of a discrete-time signal of length L and a discrete-time signal of length M produces a discrete-time convolved result of length 2L + 2M – 1

Q5. DIT algorithm divides the sequence into Option A: Positive and negative values Option B: Even and odd samples Option C: Upper higher and lower spectrum Option D: Small and large samples Q6. Convolution of two discrete time sequences (n) and (n) is equivalent to Option A: (K)* (K) Option B: (K)* (K)} Option C: (K)* (K)}/N Option D: (K)* (K)} Q7. The condition for the impulse response to be anti-symmetric is Option A: h(n)= -h(N-1-n) Option B: h(n)= h(N-1-n) Option C: h(n)= -h(N+1-n) Option D: h(n)= h(N--n) Q8. The DFT of sequence x(n)={1,3,2,0} is Option A: { 6, -2+i2 , 2, -2-i2} Option B: { 6, 2-i2 , 2, 2+i2} Option C: { 6, -2-i2 , 2, -2+i2} Option D: { 6, -2+i2 , 2, -2+i2} Q9. Linear convolution y(n) of sequences x(n)={1,2} and h(n)={2,1} Option A: {5,5,2} Option B: {5,2,5} Option C: {2,2,5} Option D: {2,5,2} Q10. For a linear phase filter, if Z1 is zero then what would be the value of Z1

-1 or 1/ Z1?

Option A: Zero Option B: Unity

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Option C: Infinity Option D: Unpredictable Q11. In an N point sequence , if N=16 , the total number of complex additions and

multiplications using Radix-2 FFT are Option A: 64 and 80 Option B: 80 and 64 Option C: 64 and 32 Option D: 24 and 12 Q12. With n-bit binary the possible binary codes are Option A: Option B: Option C: Option D: Q13. The down sampling is called as Option A: Decimation Option B: Interpolation Option C: Filtering Option D: Shifting Q14. To avoid aliasing at output during decimation by D ,the input signal of decimator

should be band-limited to Option A:

Option B:

Option C:

Option D:

Q15. Which of the following is true with respect to rounding error ? Option A: Rounding error of a positive number is always negative. Option B: Rounding error of a negative number is always positive. Option C: Rounding error is same in all the formats of fixed point representation. Option D: Rounding error is zero. Q16. If x(n) and y(n) are input and output of an interpolator with sampling rate

conversion factor B ,then Option A: y(n)=x(Bn) Option B: y(n)=x(n)/B Option C: y(n)=x(n/B) Option D: y(n)=x(n)B Q17. A Linear phase FIR filter has response given by the order of the filter will

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be

Option A: 5 Option B: 4 Option C: 6 Option D: 3 Q18. Specification of analog filter for Butterworth Approximation Option A: tan

Option B: tan

Option C: tan

Option D: tan

Q19. The disadvantage of impulse invariant method is that mapping from analog

frequency ‘ ’ to digital frequency ‘w’ is Option A: One to one Option B: Many to many Option C: One to many Option D: Many to one Q20. The impulse response of FIR filter is given by h(n)={1,-5,6}. The filter is Option A: Minimum phase Option B: Maximum phase Option C: Mixed phase Option D: Zero phase Q21. The group delay is the delayed response of filter as a function of Option A: Phase Option B: Frequency Option C: Amplitude Option D: length Q22. All zeros are lying outside the unit circle ,then filter is Option A: Maximum phase Option B: Minimum phase Option C: Mixed phase Option D: Unity phase Q23. Condition for digital filter to be causal and stable Option A: Poles should lie outside the unit circle Option B: Zeros ≥ poles Option C: Poles should lie on the circle Option D: Poles should lie inside the unit circle

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Q24. In Chebyshev Type-1 filter Option A: The poles lies on square Option B: The poles lies on circle Option C: The poles lies on ellipse Option D: The poles lies on rectangle Q25. The inverse Fourier transform Option A: converts from the frequency domain to the time domain Option B: converts from the time domain to the frequency domain Option C: converts from the phasor domain to the magnitude domain Option D: is used to make real-time spectrum analyzers

Program: BE Electronics & Telecommunication Engineering

Curriculum Scheme: CBSGS Revised 2012


Subject Code: ETC601 and Subject Name: Digital Communication


‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐

Note to the students:‐ All the Questions are compulsory and carry equal marks .

SAMPLE MCQ

Q.1. Which method is called as differential encoding?

Option A NRZ-L

Option B NRZ-M

Option C NRZ-S

Option D None of the mentioned

Q.2. In which waveform logic 1 and logic 0 are represented by opposite one half bit wide pulses?

Option A Bipolar RZ

Option B Unipolar RZ

Option C RZ-AMI

Option D Manchester coding

Q.3. In duobinary signalling method, for M-ary transmission, the number of output obtained is

Option A 2M

Option B 2M+1

Option C 2M-1

Option D M2

Q.4. The method using which the error propagation in dubinarysignalling can be avoided is

Option A Filtering

Option B Precoding

Option C Postcoding


Q.5. Source encoding procedure does

Option A Sampling

Option B Filtering

Option C Redundancy

Option D Modulation

Q.6. Channel’s phase response must be a linear function of

Option A Time

Option B Frequency

Option C Time & Frequency


Q.7. Equalization process includes

Option A Maximum likelihood sequence estimation

Option B Equalization with filters

Option C Maximum likelihood sequence estimation & Equalization with filters


Q.8. Transversal equalizers are ________

Option A Feed forward, feed back

Option B Feed back, feed forward

Option C Feed forward, feed forward

Option D Feedback, feedback

Q.9. The _______ of the opening of eye pattern indicates the time over which the sampling for detection might be performed.

Option A Length

Option B Width

Option C X-axis value

Option D Y-axis value

Q.10. If each pulse of the sequence to be detected is in _____ shape, the pulse can be detected without ISI.

Option A Sine

Option B Cosine

Option C Sinc


Q.11. Examples of nyquist filters are

Option A Root raised cosine filter

Option B Raised cosine filter

Option C Root raised & Raised cosine filter


Q.12. Roll off factor is the fraction of

Option A Excess bandwidth and absolute bandwidth

Option B Excess bandwidth and minimum nyquist bandwidth

Option C Absolute bandwidth and minimum nyquist bandwidth


Q.13. A pulse shaping filter should satisfy two requirements

Option A Should be realizable

Option B Should have proper roll off factor

Option C Should be realizable & have proper roll off factor


Q.14. The detector that minimizes the error probability is called as

Option A Maximum likelihood detector

Option B Minimum likelihood detector

Option C Maximum & Minimum likelihood detector


Q.15. Optimum threshold value is given by

Option A a0+a1/2

Option B a0-a1/2

Option C a0/2

Option D a1/2

Q.16. Matched filter provides _____ signal to noise ratio.

Option A Maximum

Option B Minimum

Option C Zero

Option D Infinity

Q.17. The range of amplitude difference gives the value of

Option A Width

Option B Distortion

Option C Timing jitter

Option D Noise margin

Q.18. The index value n, in transversal filter can be used as

Option A Time offset

Option B Filter coefficient identifier

Option C Time offset & Filter coefficient identifier


Q.19. Equalization method which is done by tracking a slowly time varying channel response is

Option A Preset equalization

Option B Adaptive equalization

Option C Variable equalization


Q.20. Performance of BFSK signal is ________ than BPSK.

Option A 3db worse

Option B 3db better

Option C 6db worse

Option D 6db better

Q.21. The non coherent FSK needs ________ Eb/N0 than coherent FSK.

Option A 1db more

Option B 1db less

Option C 3db more

Option D 3db less

Q.22. Which is easier to implement and is preferred?

Option A Coherent system

Option B Non coherent system

Option C Coherent & Non coherent system


Q.23. The real part of a sinusoid carrier wave is called as

Option A Inphase

Option B Quadrature

Option C Inphase& Quadrature


Q.24. Which modulation scheme is also called as on-off keying method?

Option A ASK

Option B FSK

Option C PSK

Option D GMSK

Q.25. In differential encoding the _________ different between two wave forms is measured.

Option A Magnitude

Option B Frequency

Option C Phase

Option D Time period

SAMPLE MCQ - Watumull

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