InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The following is true for the following partial differential equation used in nonlinear mechanics known as the Kortewegde Vries equation. (∂w/∂t) + (∂3w/∂x3) - 6w(∂w/∂x) = 0Options:(a) linear; 3rd order(b) nonlinear; 3rd order(c) linear; 1st order(d) nonlinear; 1st order |
| Answer» (b) nonlinear; 3rd order | |
| 2. |
The system of linear equations 2x+2y3 - z= 1, 4x+4y+z = 2, 6x+6y - z = 3 hasOptions:(a) a unique solution(b) infinite solutions(c) no solution(d) two solutions |
| Answer» (b) infinite solutions | |
| 3. |
Consider the following two statements :Statement 1: Astable Multivibrator can be used for generating square wave.Statement 2: Bistable Multivibrator can be used for storing binary information.Options:a) Only statement 1 is correctb) Only statement 2 is correctc) Both the statements 1 and 2 are correct.d) Both the statements 1 and 2 are Incorrect. |
| Answer» (c) Both the statements 1 and 2 are correct. | |
| 4. |
If 5x+3y - 2 = 0 and 4x+ky - 2 = 0 are parallel then k = ?Options:(a) k = 5/12(b) k = 12/5(c) k = 5(d) k = 12 |
| Answer» The correct answer is (b) k = 12/5 | |
| 5. |
Options:(a) MVI A(b) LDA XB(c) JMP 2050(d) MOV A,M |
| Answer» (c) JMP 2050 | |
| 6. |
which of the following is a temporary memory?Options:(a) RAM(b) ROM(c) Both RAM & ROM(d) None of these |
| Answer» (a) RAM is a temporary memory. | |
| 7. |
The predominant primary constituents of a telephone cable are ___________Options:(a) L and G(b) L and C(c) G and C(d) R and C |
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Answer» (d) The predominant primary constituents of a telephone cable are R and C. |
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| 8. |
VSWR is defined as ____________Options:(a) VSWR = Vmin/Vmax(b) VSWR = Vmax/Vmin(c) VSWR = Vmax + Vmin/2(d) VSWR = Vmin.Vmax |
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Answer» (b) VSWR = Vmax/Vmin |
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| 9. |
If the average value of a sine wave is 6Volts, its effective value isOptions:(a) 3.53volts(b) 3.18volts(c) 66.6volts'(d) 6.66volts. |
| Answer» (a) 3.53 volts | |
| 10. |
The transfer function Y(s)/R(s) of the system shown is-Options:(a) 0(b) 1/(s + 1)(c) 2/(s + 1)(d) 2/(s + 3) |
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Answer» (b) The transfer function Y(s)/R(s) of the system is 1/(s + 1). |
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| 11. |
The pass band of HPF is ______Options:(a) above dc(b) above 5KHz(c) below 5Khz(d) between 5-10KHz |
| Answer» (b) The pass band of HPF is above 5KHz. | |
| 12. |
A microprocessor is capable of addressing 64 K bytes of memory. Its address bus width isOptions:(a) 8(b) 12(c) 16(d) 20 |
| Answer» The correct answer is (c) 16 | |
| 13. |
Two long parallel conductors carrying currents in opposite directions______________ each otherOptions:(a) Attract(b) Repel(c) Noeffect on(d) None of these |
| Answer» The correct answer is (b) Repel | |
| 14. |
In a sampled data control system if the band width is 2Hz than the lowest sampling frequency isOptions:(a) 2Hz(b) 3Hz(c) 4Hz(d) 3/2Hz |
| Answer» (b) The lowest sampling frequency is 3Hz. | |
| 15. |
Telephone traffic is measured ____Options:(a) with echo cancellers(b) by the relative congestion(c) In terms of the grade of service(d) in Erlangs |
| Answer» (b) by the relative congestion | |
| 16. |
A constant voltage is applied across the ends of a conductor, the heat produced isOptions:(a) directly proportional to length(b) inversly proportional to length(c) directly proportional to square of length(d) none |
| Answer» (d) the heat produced is none. | |
| 17. |
The intended frequency of operation of dipole antenna of cutoff wavelength of 3.5m isOptions:(a) 21.45MHz(b) 85.8MHz(c) 100.5MHz(d) 42.9MHz |
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Answer» (d) The intended frequency of operation of dipole antenna of cutoff wavelength of 3.5m is 42.9MHz. |
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| 18. |
A memory system of size 26K bytes is required to be designed using memory chips which have 12 address lines and 4 data lines each. The number of such chips required to design the memory system is-Options:(a) 2(b) 4(c) 8(d) 13 |
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Answer» (d) The number of such chips required to design the memory system is 13. |
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| 19. |
Technology used for manufacturing of RAM for computing devices isOptions:(a) NMOS(b) PMOS(c) CMOS(d) FET |
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Answer» (c) Technology used for manufacturing of RAM for computing devices is CMOS. |
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| 20. |
A carrier voltage frequency is 1MHz and modulating signal frequency is 5KHz. Calculate the frequency of lower side band and upper side band in case of Amplitude modulation.Options:(a) 990KHz and 1005KHz(b) 995KHz & 1110KHz(c) 1000KHz & 1005KHz(d) 995KHz & 1005KHz |
| Answer» (b) 995KHz & 1110KHz | |
| 21. |
Adder circuits are widely used in the ____ section of a microprocessor.Options:(a) input device(b) memory(c) control unit(d) ALU |
| Answer» (d) ALU correct answer is | |
| 22. |
Normal timer Circuit hasOptions:(a) Resistor, Inductor and Capacitor(b) Inductor and Capacitor(c) Resistor and Inductor(d) Resistor and Capacitor |
| Answer» (d) Resistor and Capacitor | |
| 23. |
Which of the following data transfer technique is slower?Options:(a) Serial Transfer(b) Parallel Transfer(c) SerialParallel transfer(d) ParallelSerial Transfer |
| Answer» (a) Serial Transfer | |
| 24. |
Direction of the alternating e.m.f. produced in the stator conductors of an alternator is given byOptions:(a) Lenz's law(b) Flemings left hand rule(c) Fleming's right hand rule(d) Kirchoff's Law |
| Answer» (d) Kirchoff's Law | |
| 25. |
The Y plates of a CRO are excited by a voltage 2sin100t and the X plates are not connected. The display would beOptions:(a) a vertical line(b) a horizontal line(c) sine wave(d) a big dot |
| Answer» (a) a vertical line | |
| 26. |
Nyquist Criterion is used to study the ______________ Of Control SystemOptions:(a) Responsiveness(b) Stability(c) Scalability(d) All of these |
| Answer» (b) Stability | |
| 27. |
Electronic devices are most reliable when designed for ____ operation.Options:(a) decimal(b) hexadecimal(c) binary(d) ASCII |
| Answer» (b) hexadecimal | |
| 28. |
The frequency of sinusoidal alternating voltage having periodic time of 40m. sec isOptions:(a) 0.025Hz(b) 25Hz(c) 2.5 x 10-3Hz(d) 0.25Hz |
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Answer» (b) The frequency of sinusoidal alternating voltage having periodic time of 40m. sec is 25Hz. |
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| 29. |
A 220V, 100W Bulb is connected to a 110V source. Calculate the power consumed by the bulb? |
| Answer» correct answer is (b) 15W. | |
| 30. |
At low frequencies, the material used for transformer cores isOptions:(a) copper(b) silicon iron(c) soft iron(d) None of these |
| Answer» (b) silicon iron | |
| 31. |
The relative permeability of air isOptions:(a) zero(b) 1(c) infinity(d) None of these |
| Answer» (b) The relative permeability of air is 1. | |
| 32. |
When the relative permiability of a material is slightly less than 1, it is called aOptions:(a) diamagnetic material(b) para magnetic material(c) ferro magnetic material(d) none |
| Answer» The correct answer is (d) none. | |
| 33. |
In a capacitor, the electric charges is stored inOptions:(a) metal plates(b) dielectric(c) Both metal plates & dielectric(d) none of these |
| Answer» (b) dielectric | |
| 34. |
Binary coded decimal (BC numbers are useful whenever)Options:(a) binary to BCD conversion is desired(b) binary to hexadecimal conversion is desired(c) decimal information is transferred into or out of digital system(d) none of these |
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Answer» (c) decimal information is transferred into or out of digital system |
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| 35. |
Spring stiffness K is analogous toOptions:(a) Capacitance in force voltage analogy(b) Reciprocal of inductance in force current analogy(c) Inductance in forcecurrent analogy(d) Reciprocal of capacitance in forcecurrent analogy |
| Answer» (b) Reciprocal of inductance in force current analogy | |
| 36. |
The Fulx, In ForceCurrent analogy , is analogous toOptions:(a) velocity(b) mass(c) displacement(d) None of these |
| Answer» (c) displacement | |
| 37. |
A PLL can be used to demodultateOptions:(a) PAM signals(b) PCM signals(c) FM signals(d) DSB-SC signals |
| Answer» (c) FM signals | |
| 38. |
The reason for expressing the output of audio amplifier in decible is thatOptions:(a) it is more convenient to express(b) human ear hears sound on a linear scale(c) human ear hears on logarithmic scale(d) none of these |
| Answer» (b) human ear hears sound on a linear scale | |
| 39. |
G(d) was determined to be 3d + C; here, C is called:Options:(a) the constant of differentiation.(b) the constant of antidifferentiation.(c) the constant of integration.(d) the constant of death and taxes. |
| Answer» (c) the constant of integration. | |
| 40. |
What are the values of C0 and C1 in d(t) = C1 + C0t 16t2, if d(1) = 4 and v(2) = 65?Options:(a) C0 = -1,C1 = 21(b) C0 = 1, C1(c) C0 = 1,C1(d) C0 = 0, C1 = 1 |
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Answer» (a) C0 = -1,C1 = 21 |
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| 41. |
What is the slope of the line passing through the points (4,6) and (1,2)?Options:(a) 4/3(b) 3/4(c) 8/5(d) 5/8 |
| Answer» correct answer is (c) 8/5 | |
| 42. |
If AT= A-1, where A is real matrix, then A isOptions:(a) Normal(b) Symmetric(c) Hermitian(d) Orthogonal |
| Answer» (d) Orthogonal | |
| 43. |
Evaluate |(1, 3, -4),(2, 6, 2),(-4, -12, 1)|Options:(a) = 0(b) = 1(c) = -1(d) none |
| Answer» correct answer is (a) = 0 | |
| 44. |
In a control system integral error compensation _______steady state errorOptions:(a) increases(b) minimizes(c) does not have any effect on(d) any of the these |
| Answer» (b) minimizes | |
| 45. |
The bandwidth can be increased by the use ofOptions:(a) Phase lead network(b) Phase lag network(c) All of these(d) None of these |
| Answer» (c) All of these | |
| 46. |
The modulus of complex number (3 + 4i)/(1 - 2i) isOptions:(a) 5(b) √5(c) 1/√5(d) 1/5 |
| Answer» The correct answer is (b) √5 | |
| 47. |
When two amplifer each of bandwidth fH=10KHz are cascaded, the overall bandwidth becomes (in KHz)Options:(a) 10(b) 6.4(c) 5(d) 20 |
| Answer» The correct answer is (b) 6.4 | |
| 48. |
When SCR starts conducting, then __________ loses all controlOptions:a) Gateb) Cathodec) Anoded) None of these |
| Answer» The correct answer is (a) Gate | |
| 49. |
In control system we have:(I) Nyquist criterion,(II) Bode plot(III)Root locus plot,(IV) Routh hurwitz criterion.Which of the above are in time domain?Options:(a) I) & II) only(b) III) & IV) only(c) I) & III) only(d) II) & IV) only |
| Answer» (b) III) & (IV) only | |
| 50. |
The potentiometer should have resolutionOptions:(a) Infinite(b) Very high(c) Medium(d) Zero |
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Answer» (a) The potentiometer should have resolution Infinite. |
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