var questions = new Array();
var choices = new Array();
var answers = new Array();
var response = new Array();

questions[0] = "1. An ideal power supply is characterized by";
choices[0] = new Array();
choices[0][0] = "Very large output resistance";
choices[0][1] = "Very small output resistance";
choices[0][2] = "Zero internal resistance";
choices[0][3] = "Infinite internal resistance";
answers[0] = choices[0][2];


questions[1] = "2. Voice signal frequency lies between";
choices[1] = new Array();
choices[1][0] = "0 -> 20 KHz";
choices[1][1] = "15 KHz -> 1 MHz";
choices[1][2] = "15 Hz -> 15 KHz";
choices[1][3] = "None of these";
answers[1] = choices[1][2];

questions[2] = "3. A complex wave form made up frequency components 1 Hz, 3 Hz, 5 Hz, 7 Hz and 9 Hz. Its fundamental frequency is";
choices[2] = new Array();
choices[2][0] = "9 Hz";
choices[2][1] = "12.5 Hz";
choices[2][2] = "1 Hz";
choices[2][3] = "Indeterminate";
answers[2] = choices[2][2];

questions[3] = "4. A sawtooth waveform is made up of";
choices[3] = new Array();
choices[3][0] = "All odd harmonics";
choices[3][1] = "All even harmonics";
choices[3][2] = "All odd and even harmonics";
choices[3][3] = "None of these";
answers[3] = choices[3][2];


questions[4] = "5. A square wave form applied to a differentiator circuit gives positive and negative spikes. Is it true ?";
choices[4] = new Array();
choices[4][0] = "Yes";
choices[4][1] = "No";
choices[4][2] = "Not necessarily";
choices[4][3] = "None of these";
answers[4] = choices[4][0];

questions[5] = "6. Which of the following magnetic material has least value of B.H ?";
choices[5] = new Array();
choices[5][0] = "Carbon Steel";
choices[5][1] = "Cobalt Steel";
choices[5][2] = "Alnico";
choices[5][3] = "Alcomax";
answers[5] = choices[5][0];
 
 questions[6] = "7. Transmission of a wave in a closed wave guide is possible only when";
choices[6] = new Array();
choices[6][0] = "The frequency of operation is less than a certain critical value";
choices[6][1] = "Phase-shift is real positive";
choices[6][2] = "Phase-shift is zero";
choices[6][3] = "None of these";
answers[6] = choices[6][0];

questions[7] = "8. An intergrator circuit should have";
choices[7] = new Array();
choices[7][0] = "Very large time constant";
choices[7][1] = "very small time constant";
choices[7][2] = "A time constant that is much smaller as compared to the time occupied by one cycle of applied input";
choices[7][3] = "None of these";
answers[7] = choices[7][0];

questions[8] = "9. Standard Lorrn operates in which frequency range";
choices[8] = new Array();
choices[8][0] = "1.8 to 2 MHz";
choices[8][1] = "88 to 112 MHz";
choices[8][2] = "108 to 118 MHz";
choices[8][3] = "None of these";
answers[8] = choices[8][3];

questions[9] = "10. In all Pulse Communication Systems, carrier";
choices[9] = new Array();
choices[9][0] = "Is necessarily a high repetition rate train of pulses";
choices[9][1] = "Is necessarily a high frequency continous a.c. signal";
choices[9][2] = "Is either a train of pulses or a continous a.c. wave";
choices[9][3] = "None of these";
answers[9] = choices[9][2];

questions[10] = "11. In amplitude modulation";
choices[10] = new Array();
choices[10][0] = "The time gap between adjacent maximum and minimum values of the modulate envelop is not dependent on frequency of intelligence.";
choices[10][1] = "Maximum value of intelligence has no effect on the time seperation of modulated envelope's maximum and minimum.";
choices[10][2] = "Seperation of successive maximum and minimum of modulated to envelope on time-axis is inversely proportional to the frequency of modulating signal.";
choices[10][3] = "None of these";
answers[10] = choices[10][0];

questions[11] = "12. In DSB system with carrier when the intellignece varies between 100 Hz to 5 KHz, bandwidth is";
choices[11] = new Array();
choices[11][0] = "10 KHz";
choices[11][1] = "9.8 KHz";
choices[11][2] = "200 Hz";
choices[11][3] = "Indeterminate";
answers[11] = choices[11][2];
 
questions[12] = "13. Signal at the output of an AM modulator is given by e = 5.3 (1 + 0.64 sin 6280t) sin 106t. Depth of modulation for it is";
choices[12] = new Array();
choices[12][0] = "0.64 %";
choices[12][1] = "0.80 %";
choices[12][2] = "64 %";
choices[12][3] = "80 %";
answers[12] = choices[12][1];

questions[13] = "14. In frequency modulation";
choices[13] = new Array();
choices[13][0] = "Frequency of the carrier remains unchanged";
choices[13][1] = "Carrier frequency changes in accordance with the modulating signal amplitude";
choices[13][2] = "Carrier frequency changes in accordance with the modulating signal frequency";
choices[13][3] = "None of these";
answers[13] = choices[13][2];

questions[14] = "15. Modulation index in Fm is given by";
choices[14] = new Array();
choices[14][0] = "mf = 75 / freq. deviation in KHz";
choices[14][1] = "75 KHz is the modulation index";
choices[14][2] = "Freq. deviation in KHz / 75";
choices[14][3] = "None of these";
answers[14] = choices[14][0];

questions[15] = "16. Modulation index (mf) in FM is";
choices[15] = new Array();
choices[15][0] = "Directly proportional to frequency deviation and inversely proportional to the modulating frequency.";
choices[15][1] = "Given by mf = Frequency Deviation in KHz / 75 x 100";
choices[15][2] = "Directly proportional to modulating signal frequency and inversely proportional to frequency deviation.";
choices[15][3] = "Given by mf = Frequency deviation / Modulating signal amplitude";
answers[15] = choices[15][0];


questions[16] = "17. Polarization of an electromagnetic wave is";
choices[16] = new Array();
choices[16][0] = "The direction of its magnetic field component with respect to ground.";
choices[16][1] = "The direction of its electrical field component with respect to ground";
choices[16][2] = "The orientation of antenna that generates it";
choices[16][3] = "None of these";
answers[16] = choices[16][1];

questions[17] = "18. A TM wave characterized by";
choices[17] = new Array();
choices[17][0] = "The absence of magnetic component in the direction of propagation";
choices[17][1] = "The electric field component wholly transverse";
choices[17][2] = "The absence of electric field component in the direction of propagation";
choices[17][3] = "None of these";
answers[17] = choices[17][0];

questions[18] = "19. A TEM wave cannot exist within a hollow metallic pipe. It is true";
choices[18] = new Array();
choices[18][0] = "Yes";
choices[18][1] = "No";
choices[18][2] = "Not necessarily";
choices[18][3] = "None of these";
answers[18] = choices[18][2];


questions[19] = "20. Which is most commonly used transmission-line with television system ?";
choices[19] = new Array();
choices[19][0] = "Twin-lead";
choices[19][1] = "Open-wire with ceramic supports";
choices[19][2] = "Coaxial Cable";
choices[19][3] = "None of these";
answers[19] = choices[19][2];

questions[20] = "21. A transmission line with characteristics impedance of 300 is used to interconnect receiving antenna and receiver input. A reflection coefficient of 1/3 is observed on the line receiver input impedance is equal to";
choices[20] = new Array();
choices[20][0] = "150";
choices[20][1] = "100";
choices[20][2] = "900";
choices[20][3] = "Indeterminate";
answers[20] = choices[20][0];
 
 questions[21] = "22. Ionization of various gases resulting in the formaiton of Ionosphere is because of";
choices[21] = new Array();
choices[21][0] = "Characteristics of gases themselves";
choices[21][1] = "Pressure variations with altitude";
choices[21][2] = "Radiations from the sun";
choices[21][3] = "None of these";
answers[21] = choices[21][1];

questions[22] = "23. A modulated signal (AM) is having depth of modulation equal to 80%, then feeder current under modulated conditions is greater than that under unmodulated conditions by";
choices[22] = new Array();
choices[22][0] = "4%";
choices[22][1] = "10%";
choices[22][2] = "15%";
choices[22][3] = "None of these";
answers[22] = choices[22][2];

questions[23] = "24. Fidelity, in a communication receiver, is provided by";
choices[23] = new Array();
choices[23][0] = "Mixer Stage";
choices[23][1] = "Detector Stage";
choices[23][2] = "Various Amplifier Sections";
choices[23][3] = "Audio Stage";
answers[23] = choices[23][3];


questions[24] = "25. Video signals have a frequency range that is spread over approximately";
choices[24] = new Array();
choices[24][0] = "9 Octaves";
choices[24][1] = "18 Octaves";
choices[24][2] = "4 Octaves";
choices[24][3] = "None of these";
answers[24] = choices[24][2];

questions[25] = "26. Where is brightness control located in a TV ?";
choices[25] = new Array();
choices[25][0] = "Audio Section";
choices[25][1] = "Video Section";
choices[25][2] = "Grid-cathode circuit of picture tube";
choices[25][3] = "None of these";
answers[25] = choices[25][0];

questions[26] = "27. Where is fine tuning control present in television receiver ?";
choices[26] = new Array();
choices[26][0] = "A pre set inductance";
choices[26][1] = "A potentiometer";
choices[26][2] = "A variable condensor";
choices[26][3] = "None of these";
answers[26] = choices[26][1];


questions[27] = "28. Horizontal oscillator in a TV receiver generates a sawtooth signal of";
choices[27] = new Array();
choices[27][0] = "15,750 Hz in FCC Standards";
choices[27][1] = "15,750 Hz in CCIR Standards";
choices[27][2] = "15,625 Hz in FCC Standards";
choices[27][3] = "50 Hz in CCIR Standards and 60 Hz in FCC Standards";
answers[27] = choices[27][3];

questions[28] = "29. Television cameras A and B have tubes which are 3 inch and 4.5 inch long resp. When a lens of known length is used with the tubes, then";
choices[28] = new Array();
choices[28][0] = "Angle of view of A is greater than that of B";
choices[28][1] = "Angle of view of B is greater than that of A";
choices[28][2] = "Both of them have an identical angle of view";
choices[28][3] = "None of these";
answers[28] = choices[28][3];
 
 questions[29] = "30. Television screen width is always greater than the screen height or in other words rastar width more than raster height because";
choices[29] = new Array();
choices[29][0] = "Horizontal deflection frequency is higher";
choices[29][1] = "More detail is in the horizontal direction";
choices[29][2] = "Picture motion is in the horizontal direction";
choices[29][3] = "None of these";
answers[29] = choices[29][0];

questions[30] = "31. Which of the following is not provided in a PNP transistor ?";
choices[30] = new Array();
choices[30][0] = "Base";
choices[30][1] = "AB";
choices[30][2] = "B";
choices[30][3] = "C";
answers[30] = choices[30][3];