MCQOPTIONS
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MCQOPTIONS
This section includes 225 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics & Communication Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Match the following: List I List II A.Former1.Produces deflecting torqueB.Coil2.Provides base for coilC.Core3.Makes the magnetic field radialD.Spring4.Provides controlling torque |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-2, B-1, C-3, D-4 |
| C. | A-1, B-2, C-4, D-3 |
| D. | A-2, B-1, C-4, D-3 |
| Answer» C. A-1, B-2, C-4, D-3 | |
| 52. |
Match the following: List I List II A.Mu Metal1.very high magnetic permeabilityB.Samrium/cobalt2.very high magnetic remanenceC.Sapphire3.very high thermal conductivityD.Ferrites4.very stable magnetic permeability |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-3, B-4, C-1, D-2 |
| C. | A-2, B-3, C-4, D-1 |
| D. | A-4, B-1, C-2, D-3 |
| Answer» E. | |
| 53. |
Match the following: List I List II A.∇ x = 01.irrotational vectorB.∇ . = 02.conservative fieldC.∮ .dl = 03.solenoidal vector |
| A. | A-3, B-1, C-2 |
| B. | A-1, B-2, C-3 |
| C. | A-2, B-3, C-1 |
| D. | A-3, B-2, C-1 |
| Answer» B. A-1, B-2, C-3 | |
| 54. |
Match the following: List I (Operation in Basic) List II (Priority) A.Exponentiation1.1B.Multiplication and division2.2C.Addition and subtraction3.3D.Expression within parenthesis4.4 |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-2, B-3, C-1, D-4 |
| C. | A-4, B-3, C-2, D-1 |
| D. | A-2, B-3, C-4, D-1 |
| Answer» E. | |
| 55. |
Match the following: List I List II A.Interface1.A measure of rate of data transmissionB.A bit2.A binary digitC.Band speed3.The common boundary between various sections and subsections 4.A/D converter |
| A. | A-3, B-2, C-1 |
| B. | A-3, B-1, C-2 |
| C. | A-2, B-4, C-1 |
| D. | A-4, B-2, C-3 |
| Answer» E. | |
| 56. |
Match the following: List I List II A.hie1.siemensB.hoe2.no unitsC.hfe3.ohms |
| A. | A-1, B-2, C-3 |
| B. | A-3, B-1, C-2 |
| C. | A-2, B-1, C-3 |
| D. | A-3, B-2, C-1 |
| Answer» C. A-2, B-1, C-3 | |
| 57. |
Match the following: List I (Modulation ) List II (Modulation Index) A.DSBFC1.μ > 1B.DSBSC2.μ > 0C.SSB3.∞ 4.μ, any value |
| A. | A-2, B-2, C-3 |
| B. | A-1, B-3, C-3 |
| C. | A-4, B-2, C-1 |
| D. | A-2, B-3, C-1 |
| Answer» B. A-1, B-3, C-3 | |
| 58. |
Match the following: List I (Properties) List II (Relations) A.Linear but NOT time-invariant1.y(t) = t2x(t)B.Time-invariant but NOT linear2.y(t) = t |x(t)|C.Linear and time invariant3.y(t) = |x(t)| 4.y(t) = x(t - 5) |
| A. | A-1, B-3, C-4 |
| B. | A-2, B-3, C-4 |
| C. | A-3, B-1, C-2 |
| D. | A-1, B-2, C-3 |
| Answer» B. A-2, B-3, C-4 | |
| 59. |
Match the following: List I List II A.Electro-encephalograph1.Diagnostic tool for heart ailmentB.Electro-cardiograph2.Diagnostic tool for brain ailmentC.Sphygmomanometer3.used for measuring BPD.Stethoscope4.used to heart pulse/ heart beat |
| A. | A-2, B-1, C-3, D-4 |
| B. | A-3, B-1, C-2, D-4 |
| C. | A-2, B-1, C-4, D-3 |
| D. | A-1, B-2, C-3, D-4 |
| Answer» B. A-3, B-1, C-2, D-4 | |
| 60. |
Match the following: List I List II A.n-channel enhancement MOSFET pchannel1.B.p-channel enhancement MOSFET2.C.n-channel Depletion MOSFET3.D.p-channel Depletion MOSFET4. |
| A. | A-1, B-4, C-3, D-2 |
| B. | A-2, B-3, C-4, D-1 |
| C. | A-4, B-3, C-1, D-2 |
| D. | A-1, B-3, C-2, D-4 |
| Answer» D. A-1, B-3, C-2, D-4 | |
| 61. |
Match the following: List I (Camera pick up tubes) List II (Special feature) A.Vidicon1.Highest sensitivityB.Plumbicon2.Temperature sensitiveC.Saticon3.Large lagD.New vicon4.Special target for red response |
| A. | A-4, B-3, C-2, D-1 |
| B. | A-1, B-2, C-3, D-4 |
| C. | A-3, B-4, C-2, D-1 |
| D. | A-4, B-3, C-1, D-2 |
| Answer» D. A-4, B-3, C-1, D-2 | |
| 62. |
Match the following: List I (Functional headings of instruction set of 8085) List II (Functions performed)A.Branch group1.Compares, rotates etc.B.Logic group2.Moves, loads, stores etc.C.Data transfer group3.Initiates conditional or unconditional jumps, calls etc. |
| A. | A-1, B-2, C-3 |
| B. | A-2, B-3, C-1 |
| C. | A-3, B-1, C-2 |
| D. | A-1, B-3, C-2 |
| Answer» D. A-1, B-3, C-2 | |
| 63. |
Match the following: List I List II A.T (Reflection coefficient) = 01.(ZL - Zo)/(ZL + Zo)B.T = - 12.ZL = ZoC.T = + 13.ZL = 0D.- 1 < T < + 14.ZL = ‚àû |
| A. | A-2, B-3, C-4, D-1 |
| B. | A-2, B-4, C-1, D-3 |
| C. | A-1, B-2, C-3, D-4 |
| D. | A-3, B-2, C-4, D-1 |
| Answer» B. A-2, B-4, C-1, D-3 | |
| 64. |
Match the following: List I List II A.Integrated fin line1.B.Dielectric loaded waveguide2.C.Ridge waveguide3. |
| A. | A-1, B-2, C-3 |
| B. | A-2, B-3, C-1 |
| C. | A-3, B-2, C-1 |
| D. | A-2, B-1, C-3 |
| Answer» C. A-3, B-2, C-1 | |
| 65. |
Match the following: List I List II A.Title bar1.Window menuB.Control menu box2.First row of windowC.start-button3.box in title barD.Control4.Button on mouse |
| A. | A-3, B-2, C-4, D-1 |
| B. | A-2, B-3, C-4, D-1 |
| C. | A-3, B-2, C-1, D-4 |
| D. | A-2, B-3, C-1, D-4 |
| Answer» C. A-3, B-2, C-1, D-4 | |
| 66. |
Match the following: List I (Diode Rectifier) List II (Expression for output voltage) A.Bridge1.B.Half wave2.C.Full wave using centre tapped transformer3. |
| A. | A-1, B-2, C-3 |
| B. | A-3, B-2, C-1 |
| C. | A-1, B-3, C-2 |
| D. | A-3, B-1, C-2 |
| Answer» D. A-3, B-1, C-2 | |
| 67. |
The pole locations of three networks and their impulse responses are given figure List I List II A.1.B.2.C.3. |
| A. | A-1, B-2, C-3 |
| B. | A-2, B-1, C-3 |
| C. | A-3, B-1, C-2 |
| D. | A-3, B-2, C-1 |
| Answer» D. A-3, B-2, C-1 | |
| 68. |
Match the following: List I List II A.Continuous and aperiodic1.Fourier representation is continuous and aperiodicB.Continuous and Periodic2.Fourier representation is discrete and aperiodicC.Discrete and aperiodic3.Fourier representation is continuous and periodicD.Discrete and periodic4.Fourier representation is discrete and periodic |
| A. | A-3, B-2, C-4, D-1 |
| B. | A-1, B-3, C-2, D-4 |
| C. | A-1, B-2, C-3, D-4 |
| D. | A-2, B-1, C-4, D-3 |
| Answer» D. A-2, B-1, C-4, D-3 | |
| 69. |
Match the following: List I List II A.IF amplifier1.Amplifier frequencies in the range of 100 kHz to 5 MHz.B.RF amplifier2.Current in the output flows only during a portion of the positive half of the input cycleC.AF amplifier3.Amplifier frequencies in the range of 0 Hz to 5 MHzD.Class operation4.Amplifier frequencies in the frequency range of 40 Hz to 15 kHz. |
| A. | A-4, B-1, C-3, D-2 |
| B. | A-3, B-1, C-4, D-2 |
| C. | A-2, B-3, C-1, D-4 |
| D. | A-1, B-2, C-3, D-4 |
| Answer» C. A-2, B-3, C-1, D-4 | |
| 70. |
Match the following: List I List II A.Detection of a periodic signal in noise1.Increase in bandwidthB.Recovery of a band limited signal from its uniformly sampled values2.Slope overload errorC.Finer quantization of signal3.Nyquist rateD.Delta modulation4.Cross correlation |
| A. | A-4, B-3, C-1, D-2 |
| B. | A-3, B-4, C-2, D-1 |
| C. | A-4, B-3, C-2, D-1 |
| D. | A-4, B-2, C-1, D-3 |
| Answer» B. A-3, B-4, C-2, D-1 | |
| 71. |
Match the following: List I List II A.1.a constantB.e-jω2.exponential functionC.3.t multiplied exponential functionD.k δ(ω)4.rectangular pulse 5.impulse function |
| A. | A-4, B-5, C-3, D-1 |
| B. | A-4, B-5, C-3, D-2 |
| C. | A-3, B-4, C-2, D-1 |
| D. | A-3, B-4, C-2, D-5 |
| Answer» B. A-4, B-5, C-3, D-2 | |
| 72. |
Match the following: List I List II A.RF amplifier1.Amplifier received carrier and sidebandsB.Loudspeaker2.Gives acoustic outputC.Demodulator3.Has IF input and AF outputD.IF amplifier4.Fixed-tuned to intermediate frequency |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-2, B-1, C-3, D-4 |
| C. | A-3, B-4, C-1, D-2 |
| D. | A-1, B-4, C-3, D-2 |
| Answer» B. A-2, B-1, C-3, D-4 | |
| 73. |
Match the following: List I List II A.Firm ware1.Converts program in high level language to machine languageB.Compiler2.Converts assembly language program into machine languageC.Assembler3.Software embedded in hardwareD.Virtual addressing4.Grouping information between various memories |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-2, B-3, C-4, D-1 |
| C. | A-3, B-4, C-1, D-2 |
| D. | A-3, B-1, C-2, D-4 |
| Answer» E. | |
| 74. |
Match the following: List I List II A.200 MHz1.SHFB.20 GHz2.UHFC.500 kHz3.VHFD.500 MHz4.MF |
| A. | A-3, B-1, C-4, D-2 |
| B. | A-3, B-2, C-4, D-1 |
| C. | A-3, B-4, C-1, D-2 |
| D. | A-3, B-4, C-2, D-1 |
| Answer» B. A-3, B-2, C-4, D-1 | |
| 75. |
Match the following: List I (F.T and F.S) List II (Properties) A.Fourier Series1.Discrete, PeriodicB.Fourier Transform2.Continuous, PeriodicC.Discrete Time Fourier3.Discrete aperiodicD.Discrete Fourier Transform4.Continuous, aperiodic |
| A. | A-3, B-4, C-2, D-1 |
| B. | A-1, B-2, C-4, D-3 |
| C. | A-3, B-2, C-4, D-1 |
| D. | A-1, B-4, C-2, D-3 |
| Answer» B. A-1, B-2, C-4, D-3 | |
| 76. |
Match the following: List I List II A.Detection of a periodic signal in noise1.Increase in band-widthB.Recovery of a band limited signal from its uniformly sampled values2.Slope over load errorC.Finer quantization3.Nyquist rate of signalsD.Delta modulation4.Cross correlation |
| A. | A-4, B-3, C-1, D-2 |
| B. | A-3, B-2, C-1, D-4 |
| C. | A-4, B-3, C-2, D-1 |
| D. | A-3, B-2, C-4, D-1 |
| Answer» B. A-3, B-2, C-1, D-4 | |
| 77. |
Match the following: List I List II A.Total instantaneous value of emitter current1.IEB.Quiescent value of emitter current2.iEC.Instantaneous value of as component of emitter current3.IeD.RMS value of ac component of emitter current4.ie |
| A. | A-1, B-2, C-4, D-3 |
| B. | A-2, B-1, C-4, D-3 |
| C. | A-2, B-1, C-3, D-4 |
| D. | A-2, B-3, C-4, D-1 |
| Answer» C. A-2, B-1, C-3, D-4 | |
| 78. |
Match the following: List I List II A.A1 cos 2pf1t1.B.A1 A2 cos 2pf1t cos 2pf2t2.v1 (t) v2 (t)C.3., f1, - f1D.f1 + f2, f1 - f2, - f1 + f2, - f1 - f24.A1 cos ω1t |
| A. | A-3, B-1, C-4, D-2 |
| B. | A-1, B-2, C-3, D-4 |
| C. | A-4, B-2, C-1, D-3 |
| D. | A-3, B-1, C-2, D-4 |
| Answer» B. A-1, B-2, C-3, D-4 | |
| 79. |
Match the following: List I (Bit Pattern) List II (Register pairs) A.001.SPB.012.B-CC.103.D-ED.114.H-L |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-2, B-3, C-4, D-1 |
| C. | A-2, B-3, C-1, D-4 |
| D. | A-4, B-3, C-2, D-1 |
| Answer» C. A-2, B-3, C-1, D-4 | |
| 80. |
Match the following: List I (Transducer) List II (Operation) A.Bourden tube1.Fluid flow to resistance changeB.Hot wire ammeter2.Velocity to pressureC.Hydrometer3.Pressure to displacementD.Pitot tube4.Specific gravity to displacement |
| A. | A-1, B-3, C-2, D-4 |
| B. | A-3, B-1, C-2, D-4 |
| C. | A-3, B-1, C-4, D-2 |
| D. | A-4, B-2, C-3, D-1 |
| Answer» C. A-3, B-1, C-4, D-2 | |
| 81. |
Match the following: List I List II A.Simple dipole1.B.Omnidirectional antenna2.C.Loop antenna3. |
| A. | A-1, B-2, C-3 |
| B. | A-2, B-1, C-1 |
| C. | A-3, B-2, C-1 |
| D. | A-1, B-1, C-2 |
| Answer» C. A-3, B-2, C-1 | |
| 82. |
Match the following: List I List II A.bit1.10B.nat2.eC.decit3.2 |
| A. | A-1, B-2, C-3 |
| B. | A-1, B-3, C-2 |
| C. | A-3, B-2, C-1 |
| D. | A-2, B-3, C-1 |
| Answer» D. A-2, B-3, C-1 | |
| 83. |
Match the following: List I List II A.1.Band reject (notch) filterB.2.Band pass filterC.3.High pass filterD.4.Low pass filters |
| A. | A-3, B-4, C-2, D-1 |
| B. | A-3, B-4, C-1, D-2 |
| C. | A-4, B-3, C-1, D-2 |
| D. | A-4, B-3, C-2, D-1 |
| Answer» D. A-4, B-3, C-2, D-1 | |
| 84. |
Match the following: List I List II A.1.Non-minimum phaseB.2.Minimum phaseC.3.All pass system |
| A. | A-1, B-3, C-2 |
| B. | A-3, B-1, C-2 |
| C. | A-3, B-2, C-1 |
| D. | A-2, B-1, C-3 |
| Answer» C. A-3, B-2, C-1 | |
| 85. |
Match the following: List I List II A.(‚àá x E)ds = 01.Continuity equationB.rv.dv = Q2.Ampere's lawC.(J + D)ds3.Gauss lawD.-rvdv4.Faraday's lawE.H.dl = (‚àá x H)ds5.Stoke's theorem |
| A. | A-4, B-3, C-2, D-1, E-5 |
| B. | A-1, B-2, C-3, D-4, E-5 |
| C. | A-4, B-2, C-1, D-3, E-5 |
| D. | A-1, B-5, C-4, D-2, E-3 |
| Answer» B. A-1, B-2, C-3, D-4, E-5 | |
| 86. |
Match the following: List I (Octal) List II (Hexadecimal)A.661.3 FB.772.36C.553.27D.474.3D |
| A. | A-1, B-3, C-2, D-4 |
| B. | A-2, B-1, C-4, D-3 |
| C. | A-3, B-1, C-2, D-4 |
| D. | A-4, B-1, C-2, D-3 |
| Answer» C. A-3, B-1, C-2, D-4 | |
| 87. |
Match the following: List I List II A.BJT1.B.SCR2.C.UJT3.D.PUT4. |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-2, B-3, C-1, D-4 |
| C. | A-1, B-3, C-4, D-2 |
| D. | A-4, B-2, C-1, D-3 |
| Answer» D. A-4, B-2, C-1, D-3 | |
| 88. |
Match the following: List I (Transmission system) List II (Mode) A.Rectangular waveguide1.TE/TMB.Circular waveguide2.TEMC.Coaxial line3.Quasi TEMD.Microstrip line |
| A. | A-1, B-1, C-2, D-3 |
| B. | A-1, B-2, C-2, D-3 |
| C. | A-2, B-2, C-3, D-3 |
| D. | A-3, B-1, C-2, D-2 |
| Answer» E. | |
| 89. |
Match the following: List I List IIA.Resistance1.M-1L-2T4I2B.Inductance2.ML2T-2I-2C.Capacitance3.ML2T-3I2 |
| A. | A-1, B-2, C-3 |
| B. | A-2, B-1, C-3 |
| C. | A-2, B-3, C-1 |
| D. | A-3, B-2, C-1 |
| Answer» E. | |
| 90. |
Match the following: List I List II A.IF noise1.Ganged tuningB.Image frequency2.Spurious responseC.Station selector3.Leaky filter capacitorD.Excessive Hum4.Mixer stage |
| A. | A-3, B-2, C-1, D-4 |
| B. | A-2, B-3, C-1, D-4 |
| C. | A-1, B-2, C-3, D-4 |
| D. | A-4, B-2, C-1, D-3 |
| Answer» E. | |
| 91. |
Match the following: List I List II A.Wein bridge oscillator1.Low output impedanceB.Voltage shunt feedback amplifier2.RF frequency rangeC.Crystal oscillator3.Audio frequency rangeD.Current shunt feedback amplifier4.High input impedance 5.High output impedance |
| A. | A-3, B-1, C-2, D-5 |
| B. | A-3, B-5, C-1, D-2 |
| C. | A-4, B-3, C-1, D-2 |
| D. | A-5, B-1, C-2, D-1 |
| Answer» B. A-3, B-5, C-1, D-2 | |
| 92. |
List I (Theorems) List II (Property of Network) A.h111.1/(re + rd)B.h122.rb + reC.h213.μbcD.h224.μcb |
| A. | A-2, B-1, C-4, D-3 |
| B. | A-4, B-3, C-2, D-1 |
| C. | A-2, B-3, C-4, D-1 |
| D. | A-4, B-1, C-2, D-3 |
| Answer» D. A-4, B-1, C-2, D-3 | |
| 93. |
Match the following: List I (Form) List II (Network) A.Cauer I1.L in series arm and C in shunt arm of ladderB.Cauer II2.C in series arm and L in shunt arm of ladderC.Foster I3.Series combination of L and C in parallelD.Foster II4.Parallel combination of L and C in series |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-1, B-2, C-4, D-3 |
| C. | A-2, B-1, C-4, D-3 |
| D. | A-2, B-1, C-3, D-4 |
| Answer» B. A-1, B-2, C-4, D-3 | |
| 94. |
Match the following: List I (Operator) List II (Description) A.& &1.Bitwise inclusive ORB.&2.Bitwise ANDC.| |3.Logical ANDD.|4.Logical OR |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-3, B-2, C-4, D-1 |
| C. | A-2, B-3, C-1, D-4 |
| D. | A-1, B-4, C-2, D-3 |
| Answer» C. A-2, B-3, C-1, D-4 | |
| 95. |
Match the following: List I List II A.1.Slot lineB.2.Coplanar lineC.3.Microstrip |
| A. | A-1, B-2, C-3 |
| B. | A-3, B-2, C-1 |
| C. | A-2, B-3, C-1 |
| D. | A-3, B-1, C-2 |
| Answer» E. | |
| 96. |
Match the following: List I (Amplifier coupling) List II (Feature) A.RC1.High voltage gain and impedance matchingB.Inductive2.Ability to amplify dc and low frequency signalsC.Transformer3.Minimum non-linear distortionD.Direct4.Low collector supply voltage can be used |
| A. | A-4, B-1, C-3, D-2 |
| B. | A-3, B-4, C-1, D-2 |
| C. | A-1, B-2, C-3, D-4 |
| D. | A-4, B-3, C-2, D-1 |
| Answer» C. A-1, B-2, C-3, D-4 | |
| 97. |
Match the following: List I (I/P - O/P relation) List II (Property of the system) A.y(n) = x(n)1.Nonlinear, non-causalB.y(n) = x(n2)2.Linear, non casualC.y(n) = x2(-n)3.Linear causalD.y(n) = x2(n)4.Nonlinear causal |
| A. | A-1, B-4, C-3, D-2 |
| B. | A-3, B-2, C-1, D-4 |
| C. | A-1, B-2, C-3, D-4 |
| D. | A-3, B-4, C-1, D-2 |
| Answer» C. A-1, B-2, C-3, D-4 | |
| 98. |
Match the following: List I (Bits operator in C) List II (Meaning) A.Àú1.Bitwise XORB.&2.Bitwise ANDC.|3.Bitwise ORD.U4.One's complement |
| A. | A-1, B-2, C-3, D-4 |
| B. | A-4, B-3, C-2, D-1 |
| C. | A-2, B-3, C-1, D-4 |
| D. | A-4, B-2, C-3, D-1 |
| Answer» E. | |
| 99. |
Match the following: List I List II A.Step up chopper1.B.Class E chopper2.C.Class D chopper3.D.Class B chopper4. |
| A. | A-1, B-3, C-4, D-2 |
| B. | A-3, B-1, C-4, D-2 |
| C. | A-1, B-2, C-3, D-4 |
| D. | A-4, B-2, C-1, D-3 |
| Answer» C. A-1, B-2, C-3, D-4 | |
| 100. |
Match the following: List I (Signal) List II (Value)A.AM1.0 0.5B.DSB - SC2.1C.SSB3.2D.FM (β = 2)4.16E.FM (β = 5)5.8 |
| A. | A-1, B-3, C-2, D-5, E-4 |
| B. | A-3, B-3, C-1, D-5, E-4 |
| C. | A-2, B-1, C-4, D-5, E-5 |
| D. | A-4, B-2, C-5, D-3, E-1 |
| Answer» C. A-2, B-1, C-4, D-5, E-5 | |