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MCQOPTIONS
This section includes 9294 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 5501. |
The Nyquist sampling interval, for the signal sine (700t) + sine (500t) is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/10-02-11-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/10-02-11-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/10-02-11-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/10-02-11-4.png"> |
| Answer» D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/10-02-11-4.png"> | |
| 5502. |
If X = 1 in the logic equation [X + Z { Y + (Z + X Y)}] { X + Z (X + Y)} = 1, then |
| A. | Y = Z |
| B. | Y = |
| C. | <span style="text-decoration:overline;">Z</span> |
| D. | Z = 1 |
| E. | Z = 0 |
| Answer» E. Z = 0 | |
| 5503. |
(22)4 + (101)3 - (20)5 = (x)4 + (4)x+1 where x > 4. The value of x is |
| A. | 6 |
| B. | 4 |
| C. | 12 |
| D. | 8 |
| Answer» D. 8 | |
| 5504. |
Consider a system with the transfer function . Its damping ratio will be 0.5 when the value of k is : |
| A. | 2/6 |
| B. | 3 |
| C. | 1/6 |
| D. | 6 |
| Answer» D. 6 | |
| 5505. |
For the network of figure, [z] matrix is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/networks-analysis-and-synthesis/97-250-2.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/networks-analysis-and-synthesis/97-250-3.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/networks-analysis-and-synthesis/97-250-4.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/networks-analysis-and-synthesis/97-250-5.png"> |
| Answer» D. <img src="/_files/images/electronics-and-communication-engineering/networks-analysis-and-synthesis/97-250-5.png"> | |
| 5506. |
Pick the correct statement with respect to following figure. |
| A. | both the circuit are not identical filter Ckts |
| B. | identical filter circuit at all frequencies |
| C. | identical filter circuit at low frequency |
| D. | identical filter circuit at high frequency |
| Answer» D. identical filter circuit at high frequency | |
| 5507. |
Permittivity has the units of F/m. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5508. |
A capacitor used for power factor correction in single- phase circuit decreases |
| A. | the power factor |
| B. | the line current |
| C. | both the line current and the power factor |
| D. | the line current and increases power factor |
| Answer» E. | |
| 5509. |
A series RL circuit is switched on to an impulse. A (t) at t = 0. Then |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5510. |
In figure, the switch is initially open. At t = 0 switch is closed. vc (0+) and iL (0+) are |
| A. | 60 V and - 0.3 A |
| B. | 150 V and zero |
| C. | zero and 0.3 A |
| D. | 90 V and - 0.3 A |
| Answer» B. 150 V and zero | |
| 5511. |
In any network of linear impedances the current flowing at any point equal to algebric sum of currents caused to flow at that point by each of the emf taken separately with all other emfs reduced to zero. The statement represents. |
| A. | KCL |
| B. | Norton's theorem |
| C. | Thevenin's theorem |
| D. | Superposition theorem |
| Answer» B. Norton's theorem | |
| 5512. |
Time domain equivalent circuit of the figure is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-758-71-2.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-71-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-71-3.png"> |
| D. | None of the above |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-71-2.png"> | |
| 5513. |
If (225)Y = (165)8 find value of Y |
| A. | 7 |
| B. | 8 |
| C. | 9 |
| D. | 11 |
| Answer» B. 8 | |
| 5514. |
In 8085, Whenever a signal is received at TRAP terminal its program execution is transferred to a subroutine on address __________ . |
| A. | 0000 H |
| B. | 0024 H |
| C. | 002 CH |
| D. | provided by the address generation logic |
| Answer» C. 002 CH | |
| 5515. |
The amplitude modulated wave is given by __________ e = 25(1 + 0.7 cos 5000t - 0.3 cos 1000t) x sin 5 x 106t The amplitude of carrier and sideband frequencies in magnitudes are |
| A. | 25, 0.7, 0.3 |
| B. | 25, 0.7, - 0.3 |
| C. | 24, 17.5, 7.5 |
| D. | 25, 8.75, 3.75 |
| Answer» E. | |
| 5516. |
A signal flow graph of a system is given belowThe set of equations that correspond of this signal flow graph is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/5-05-40-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/5-05-40-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/5-05-40-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/5-05-40-4.png"> |
| Answer» D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/5-05-40-4.png"> | |
| 5517. |
If h1[n] = 3 [n] + [n - 1], h2[n] = 2 [n] + [n - 2]h3[n] = [n] - 3 [n - 1] + 7 [n - 4] + 6 [n - 6]h[n] = h1[n] * h2[n] + h3[n] * h1[n] has value |
| A. | {6, 18, 7, 4, 0, - 6, 9} |
| B. | {9, 0, - 6, 21, 7, 6, 1} |
| C. | {7, - 1, 3, 1, 7, 0, 6} |
| D. | {9, - 6, 0, 1, 21, 7, 18, 6} |
| Answer» E. | |
| 5518. |
The feedback control system shown in the given figure represents |
| A. | Type 0 system |
| B. | Type 1 system |
| C. | Type 2 system |
| D. | Type 3 system |
| Answer» E. | |
| 5519. |
(11)2 + (11)3 = (11)? |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | not possible |
| Answer» D. not possible | |
| 5520. |
A speech signal, band limited to 4kHz and peak voltage varying between + 5V and - 5V is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits. The number of quantization levels required to reduce the quantization noise by a factor of 4 would be |
| A. | 1024 |
| B. | 512 |
| C. | 256 |
| D. | 64 |
| Answer» C. 256 | |
| 5521. |
The maximum effective aperture of an antenna which is operating at wavelength of 2 m and has a directivity of 100 is __________ . |
| A. | 15.92 |
| B. | 31.84 |
| C. | 3.184 |
| D. | 1.592 |
| Answer» C. 3.184 | |
| 5522. |
The equivalent circuit for the following network is : |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-77-2.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-77-3.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-77-4.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-77-5.png"> |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-759-77-3.png"> | |
| 5523. |
The autocorrelation function of an ergodic random process is given by __________ . |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-753-5-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-753-5-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-753-5-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-753-5-4.png"> |
| Answer» D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-753-5-4.png"> | |
| 5524. |
The ratio of condition current density to displacement current density for a good conductor and a good dielectric is respectively __________ . |
| A. | greater than 1, greater than 1 |
| B. | greater than 1, less than 1 |
| C. | less than 1, less than 1 |
| Answer» C. less than 1, less than 1 | |
| 5525. |
Consider a parallel plate capacitor being charged. Identify the incorrect statements |
| A. | Energy stored in the capacitor does not enter it through the connecting wires but through the space around the wires and plates uf capacitor |
| B. | Rate at which energy flows into this volume is equal to the integration of the Poynting vector over the boundary of the volume between the plates. |
| C. | The Poynting vector points everywhere radially outward of the volume between the plates |
| D. | The Poynting vector points everywhere radially into the volume between the plates. |
| Answer» E. | |
| 5526. |
Find equivalent resistance. Each resistance is l |
| A. | 5/12 |
| B. | 5/6 |
| C. | 6/5 |
| D. | 6/10 |
| Answer» C. 6/5 | |
| 5527. |
Find ZTH, VAB current through 10 resistance |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-06-82-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-06-82-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-06-82-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-06-82-4.png"> |
| Answer» D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-06-82-4.png"> | |
| 5528. |
The following circuit is implementation of: sum of full addercarry of half adder difference of full subtractor |
| A. | 1 only |
| B. | 3 only |
| C. | 2 only |
| D. | 1 and 2 both |
| Answer» E. | |
| 5529. |
The region between a pin of parallel perfectly conducting planes of infinite extent is y and z directions is partially filled with a dielectric as shown below.A 30 GHz TE10 wave is incident on the air-dielectric interface. The VSWR at the interface is |
| A. | - 2 |
| B. | 2 |
| C. | 0 |
| D. | 1 |
| Answer» C. 0 | |
| 5530. |
For signal flow graph shown in following figure determine the ratio X5|X1. Use Mason's gain formula for signal flow graph. |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-757-61-2.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-757-61-3.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-757-61-4.png"> |
| D. | None of these |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/2-757-61-3.png"> | |
| 5531. |
Consider following statements : Maximum energy of electrons liberated photoelectrically is independent of light intensity Maximum energy of electrons liberated photoelectrically varies nonlinearly with frequency of incident light. |
| A. | statement (1) is true and (2) is false |
| B. | statement (1) and (2) both are true |
| C. | statement (1) is false and (2) is true |
| D. | statement (1) and (2) both are false |
| Answer» B. statement (1) and (2) both are true | |
| 5532. |
The fourier transform of a voltage signal x(t) is X(f). The unit of X(f) is __________ . |
| A. | volts |
| B. | volt |
| C. | <sup>2</sup> |
| D. | volt/sec |
| E. | volt-sec |
| Answer» E. volt-sec | |
| 5533. |
A diode detector load consists of 0.01 F capacitor in parallel with a 5 k ohms resistor. The maximum depth of modulation without diagonal clipping at modulating frequency of 1000 Hz and 10 kHz is |
| A. | 0.76, 0.24 |
| B. | 0.95, 0.3 |
| C. | 0.24, 0.76 |
| D. | 0.3, 0.95 |
| Answer» C. 0.24, 0.76 | |
| 5534. |
The question below consists of a pair of related words followed by four pairs of words. Select the pair that best expresses the relation in the original pair.Unemployed: Worker |
| A. | fallow : land |
| B. | unaware : sleeper |
| C. | wit : jester |
| D. | renovated : house |
| Answer» B. unaware : sleeper | |
| 5535. |
The inconsistency of Ampere's law can be removed by adding __________ to it. |
| A. | displacement current density alone. |
| B. | conduction current density alone. |
| C. | displacement and conduction current densities. |
| D. | none of these |
| Answer» B. conduction current density alone. | |
| 5536. |
For the circuit shown in figure below, the initial conditions are zero, its transfer function H(s) = is : |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/16-02-16-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/16-02-16-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/16-02-16-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/16-02-16-4.png"> |
| Answer» C. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/16-02-16-3.png"> | |
| 5537. |
For the two-port network shown below, the short circuit admittance parameter matrix is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-01-4-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-01-4-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-01-4-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-01-4-4.png"> |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-01-4-2.png"> | |
| 5538. |
The Nyquist sampling rate for the signal s(t) = is given by |
| A. | 400 Hz |
| B. | 600 Hz |
| C. | 1200 Hz |
| D. | 1400 Hz |
| Answer» D. 1400 Hz | |
| 5539. |
For the output F to be 1 in the logic circuit shown, the input combination should be |
| A. | A = 1, B = 1, C = 0 |
| B. | A = 1, B = 0, C = 0 |
| C. | A = 0, B = 1, C = 0 |
| D. | A = 0, B = 0, C = 1 |
| Answer» E. | |
| 5540. |
The ROC of Z-transform of the discrete time sequence x(n) is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-01-7-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-01-7-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-01-7-3.png"> |
| D. | 2 > |Z| > 3 |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-01-7-2.png"> | |
| 5541. |
Assuming the OP-AMP to be ideal, the voltage gain of the amplifier shown in figure is |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-02-10-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-02-10-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-02-10-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-02-10-4.png"> |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/7-02-10-2.png"> | |
| 5542. |
The effective length of an 1/2 antenna (Given Rr = 73 and (Ae)max = 0.34 2 and = 120p) is __________ . |
| A. | 0.6348 |
| B. | 0.5133 |
| C. | 0.1587 |
| D. | 0.3714 |
| Answer» C. 0.1587 | |
| 5543. |
Consider the sequence x(n) whose fourier transform X(ej ) is depicted for - p p as shown in figure x(n) is periodicRealEvenFinite energy |
| A. | 1 - True, 2 - True, 3 - True, 4 - True |
| B. | 1 - False, 2 - True, 3 - False, 4 - True |
| C. | 1 - True, 2 - False, 3 - True, 4 - False |
| D. | 1 - False, 2 - False, 3 - False, 4 - True |
| Answer» C. 1 - True, 2 - False, 3 - True, 4 - False | |
| 5544. |
A second order system has the transfer function . With r(t) as the unit step function, the response c(t) of the system is represented by |
| A. | figure (a) |
| B. | figure (b) |
| C. | figure (c) |
| D. | figure (d) |
| Answer» C. figure (c) | |
| 5545. |
For a four point DFT, Linear transformation matrix will be: |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/1-749-82-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/1-749-82-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/1-749-82-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/1-749-82-4.png"> |
| Answer» C. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/1-749-82-3.png"> | |
| 5546. |
In the circuit, the value of the voltage source E |
| A. | -22 V |
| B. | -12 V |
| C. | +12 V |
| D. | -10 V |
| Answer» B. -12 V | |
| 5547. |
Skin depth depends on |
| A. | <i>f</i> |
| B. | <i>f</i> |
| C. | <sup>2</sup> |
| D. | <i><span class="root">f</span></i> |
| E. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/12-02-13-4.png"> |
| Answer» E. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/12-02-13-4.png"> | |
| 5548. |
A source produces 4 symbols with probabilities , , , For this source, a practical coding scheme has an average codeword length of 2 bits/symbol. The efficiency of the code is |
| A. | 1 |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/4-789-61-4.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/4-789-61-1.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/4-789-61-2.png"> |
| Answer» C. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/4-789-61-1.png"> | |
| 5549. |
The depth of penetration at 4 MHz is 10 cm, then at 2.5 MHz it is |
| A. | 62.5 cm |
| B. | 13 cm |
| C. | 6.25 cm |
| D. | 8 cm |
| Answer» C. 6.25 cm | |
| 5550. |
Calculate i(t) for t 0 assuming the switch has been in position A for a long time. At t = 0, the switch is moved to position B. |
| A. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-07-83-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-07-83-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-07-83-3.png"> |
| D. | <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/3-07-83-4.png"> |
| Answer» E. | |