0622016 Related Question Answers
51. What will be the final values of x and y? void main () { int x = 1, y = 1; clrscr(); do while (x<=7) { x++. y++; } while (y<=5); printf(’\n x = %d y = %d', x, y); } (A) x = 6 y = 6 (B)x=8y=6 (C ) x = 8y = 8 (D)none of the above 50. What will be the output of the following program? void main() { char x = ‘d’; clrscr( ); switch (x) { case 'b’ puts( “01001”); break; default: puts (“321'); break; case 'R’: puts ('l II II'); } What will be the final values of x and y? void main () { int x = 1, y = 1; clrscr(); do while (x<=7) { x++. y++; } while (y<=5); printf(’\n x = %d y = %d', x, y); } (A) x = 6 y = 6 (B)x=8y=6 (C ) x = 8y = 8 (D)none of the above 50. What will be the output of the following program? void main() { char x = ‘d’; clrscr( ); switch (x) { case 'b’ puts( “01001”); break; default: puts (“321'); break; case 'R’: puts ('l II II'); } }
52. What will be the output of the following program? void main(){char x = ‘d’; clrscr( ); switch (x){case 'b’puts( “01001”); break; default: puts (“321'); break; case 'R’:puts ('l II II');}}
53. A zener diode voltage regulator has load requirement of 12 V and 2 Amp. The zener diode’s minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is maximum efficiency of circuit? (upto 1 decimal place)?
55. The forward path transfer function of a unity negative feedback system is given by :The value of K which will place both the poles of the closed-loop system at the same location, is k, then 4k is?
56. A radio system outputs signals with frequency components only in the range 2.5 MHz to 3.5 MHz. The analog-to-digital converter that you want to use to digitise such signals can be operated at sampling frequencies that are an integer multiple of 1 MHz. What is the lowest sampling frequency (in MHz) that you can use without destroying information throughaliasing?
57. Six equal resistances each of 10 ohms are connected to form a network as shown in diagram. What are the equivalent resistance between A and IS in ohms?
59. The response of an initially relaxed circuit to a signal V, is e-2t u(t). if the signal is changed to (Va + 2dV, Idt)t the response would be :
60. A wove of frequency 6 GHz is propagated in a parallel plane waveguide with plane separation of 3 cm. The group velocity is given as c/x then 1 Ox is? (c = 3 x 10A8)
61. When a 1 Mhz signal is combined with the output of a 1.3 Mhz oscillator, the beat frequency obtained will be (in Khz):
62. In the circuit shown in the figure, the value of capacitor C (in mF) needed to have critically damped response i(i) is x, then xl2 = :
63. The circuit shown below’ is a digital-to Analog converter with VR = 10 V and R = 10 k Ohm.The current I (in uA) is
64. he closed loop transfer function of a unity feedback control system whose step response is given by c(t) = fc[l - 1.66e sin(st + 37°)] is 100k/[s2 + As + B] then B - A = :
65. Two coils 1 and 2 have self and mutual inductances of displacement V metres as under : L11 =2 + 3x,L22 =4 + 6x,L,2 = 2 - 3x. For constant I = 1A and It = -0.5A, an electromagnetic force is developed in the direction to increase x. The magnitude of the force is m, then (lO m +1/2)
66. A binary PCM transmission of video signals ha9 fs = lOMhz and Sx = 0,l ohm. The signalling rate required to get the quantisation noise power at least 50 dB below the signal power is X Mbps, what is X / 4 ? (fs -sampling rate; Sx -signal power):
68. Dual slope ADC has R = 1KΩ and C = 0.22 nF has charging and discharge times for some voltage is 9 ns and 3 ns respectively. The reference Voltage is 2.2 V. What is the peak voltage reached by triangular wave during charging? (In mV)062/2016
70. The system in the fig. has a second order response with a damping ratio of 0.6 and a frequency of damped oscillations of 10 rad/s. The value of 4Kj - Kt is:
71. A transmitter radiates a total of 10 kW. The carrier is modulated to a depth of 60%. The power in the carrier will be, P (in kW) then 10 p to the nearest integer will be :
72. A uniformly doped silicon epitaxial NPN bipolar transistor is fabricated with a base doping of Nb = 3 x 1016 cm”3and a heavily doped collector region with Nc = 5 x 1017 cm-3. The neutral base width is xB = 0.7 um when = VM = 0. The VBC at punch-through is (in V):
73. Find the drain-source voltage, VDS, for the NMOS trnansistor circuit shown in fig. The device parameters are : conductance parameter, k = 600 pA/v2 and VT = 2 V
74. An operational amplifier is a particular type of differential amplifier. Most op-amps receive two input voltage signals and output one voltage signal:+ powerHere is a single op-ainp, shown under two different conditions (different input voltages). Determine the voltage gain of this op-amp, given the conditions shown
75. Let a uniform surface charge density of 5 nC/m2 be present at the z = 0 plane, a uniform line charge density of 8 nC/'m be located at x = 0, z = 4 and a point charge of 2uC be present at P(2,0,0). If V = 0 at A(0,0,5) the V at B(1, 2, 3) is : (Write your answer in Volts)
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