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

questions[0] = "1. An antenna that radiates uniformly in all directions is called";
choices[0] = new Array();
choices[0][0] = "Hertzian Dipole";
choices[0][1] = "Isotropic Antenna";
choices[0][2] = "Half-Wave Dipole";
choices[0][3] = "Helical Antenna";
answers[0] = choices[0][1];


questions[1] = "2. Typical radar antenna has beam width of";
choices[1] = new Array();
choices[1][0] = "5 Degrees";
choices[1][1] = "3 Degrees";
choices[1][2] = "2 Degrees";
choices[1][3] = "1 Degrees";
answers[1] = choices[1][3];

questions[2] = "3. In Indian T.V the width of one channel is";
choices[2] = new Array();
choices[2][0] = "7 MHz";
choices[2][1] = "5 MHz";
choices[2][2] = "15 MHz";
choices[2][3] = "8 MHz";
answers[2] = choices[2][0];

questions[3] = "4. Interlacing is used in T.V because";
choices[3] = new Array();
choices[3][0] = "It ensures scanning all lines on the screen";
choices[3][1] = "Vertical sync signals are not needed";
choices[3][2] = "It reduces flicker";
choices[3][3] = "Gives the feeling of picture movement";
answers[3] = choices[3][2];


questions[4] = "5. No picture, No sound, No raster, the trouble is in";
choices[4] = new Array();
choices[4][0] = "Vertical Oscillator";
choices[4][1] = "R.F Amplifier";
choices[4][2] = "Horizontal Amplifier";
choices[4][3] = "None of these";
answers[4] = choices[4][3];

questions[5] = "6. As one moves away from transmitter, ground wave eventually disappears because";
choices[5] = new Array();
choices[5][0] = "Sky wave interferes with ground wave";
choices[5][1] = "Of tilt in wave front";
choices[5][2] = "Of loss of line of sight";
choices[5][3] = "Of limitation of single hop distance";
answers[5] = choices[5][1];
 
 questions[6] = "7. UHF signals normally propagates by means of";
choices[6] = new Array();
choices[6][0] = "Sky Wave";
choices[6][1] = "Space Wave";
choices[6][2] = "Surface Wave";
choices[6][3] = "Duct";
answers[6] = choices[6][1];

questions[7] = "8. In a low level A.M transmitter, the stage following the modulator shall be";
choices[7] = new Array();
choices[7][0] = "Harmonic Generators";
choices[7][1] = "Class C Amplifier";
choices[7][2] = "Non-Linear Amplifier";
choices[7][3] = "Linear Amplifier";
answers[7] = choices[7][3];

questions[8] = "9. A carrier is simultaneously modulated by two sine wave with modulation indices 0.8 and 0.6. The resultant index is";
choices[8] = new Array();
choices[8][0] = "1";
choices[8][1] = "0.5";
choices[8][2] = "0.7";
choices[8][3] = "None of the above";
answers[8] = choices[8][0];

questions[9] = "10. The function of pre-emphasis circuit in a communication system is to boost";
choices[9] = new Array();
choices[9][0] = "The higher audio frequencies";
choices[9][1] = "The modulated wave";
choices[9][2] = "The lower audio frequencies";
choices[9][3] = "The complete audio band";
answers[9] = choices[9][0];

questions[10] = "11. Armstrong modulator generates";
choices[10] = new Array();
choices[10][0] = "AM";
choices[10][1] = "PM";
choices[10][2] = "FM";
choices[10][3] = "Both AM and PM";
answers[10] = choices[10][2];

questions[11] = "12. Commonly employed filter in SSB generation is";
choices[11] = new Array();
choices[11][0] = "HP";
choices[11][1] = "RC";
choices[11][2] = "LC";
choices[11][3] = "Mechanical";
answers[11] = choices[11][3];
 
questions[12] = "13. Tropospheric scatter is used in the following range";
choices[12] = new Array();
choices[12][0] = "HF";
choices[12][1] = "VHF";
choices[12][2] = "UHF";
choices[12][3] = "VLF";
answers[12] = choices[12][1];

questions[13] = "14. The function of padders in radio receiver is to improve";
choices[13] = new Array();
choices[13][0] = "Sensitivity";
choices[13][1] = "Rejection of Image Frequency";
choices[13][2] = "Noise Reduction";
choices[13][3] = "Tracking";
answers[13] = choices[13][3];

questions[14] = "15. The fidelity of a receiver is primarily dependent upon";
choices[14] = new Array();
choices[14][0] = "Local Oscillator";
choices[14][1] = "Detector Stage";
choices[14][2] = "IF Amplifier";
choices[14][3] = "Audio Amplifier";
answers[14] = choices[14][3];

questions[15] = "16. In communication, noise is most likely to affect the signal";
choices[15] = new Array();
choices[15][0] = "At transmitter";
choices[15][1] = "Source";
choices[15][2] = "Channel";
choices[15][3] = "Destination";
answers[15] = choices[15][2];


questions[16] = "17. The F.M signal is passed through frequency tripler, the resultant modulation index will change by a factor of";
choices[16] = new Array();
choices[16][0] = "1";
choices[16][1] = "1 / 3";
choices[16][2] = "3";
choices[16][3] = "9";
answers[16] = choices[16][2];

questions[17] = "18. Quantization noise occurs in";
choices[17] = new Array();
choices[17][0] = "PCM";
choices[17][1] = "TDM";
choices[17][2] = "FDM";
choices[17][3] = "PWM";
answers[17] = choices[17][0];

questions[18] = "19. Blind speed problem in a radar can be effectively overcome by using";
choices[18] = new Array();
choices[18][0] = "Monopulse Technique";
choices[18][1] = "MTI";
choices[18][2] = "Variable PRF";
choices[18][3] = "Conical Scanning";
answers[18] = choices[18][2];


questions[19] = "20. If the antenna diameter in a radar system is increased by a factor of 4, the range will increase by a factor of";
choices[19] = new Array();
choices[19][0] = "2";
choices[19][1] = "8";
choices[19][2] = "4";
choices[19][3] = "2";
answers[19] = choices[19][2];

questions[20] = "21. To represent a decimal number 35 in binary, the minimum number of bits required are";
choices[20] = new Array();
choices[20][0] = "6";
choices[20][1] = "5";
choices[20][2] = "4";
choices[20][3] = "10";
answers[20] = choices[20][0];
 
 questions[21] = "22. To add the binary number 1101 with 1111 one needs";
choices[21] = new Array();
choices[21][0] = "Three full adders";
choices[21][1] = "One full adder with one half adder";
choices[21][2] = "Three full adder with one half adder";
choices[21][3] = "Four half adders";
answers[21] = choices[21][2];

questions[22] = "23. To measure high Q inductors, the bridge preferred is";
choices[22] = new Array();
choices[22][0] = "Schering Bridge";
choices[22][1] = "Hay's Bridge";
choices[22][2] = "Wien Bridge";
choices[22][3] = "Maxwell Bridge";
answers[22] = choices[22][1];

questions[23] = "24. The voltage gain of an amplifier used with Boolstrap sweep theoretically shall be";
choices[23] = new Array();
choices[23][0] = "-1";
choices[23][1] = "+1";
choices[23][2] = "Infinity";
choices[23][3] = "No such consideration";
answers[23] = choices[23][1];


questions[24] = "25. A 1000 KHz carrier is simultaneously modulated with 300 Hz, 800 Hz and 2 KHz audio sine waves. The frequencies present in the output will be";
choices[24] = new Array();
choices[24][0] = "998 KHz and 1002 KHz";
choices[24][1] = "998 KHz, 999.2 KHz, 1000.8 KHz, 1002 KHz";
choices[24][2] = "998 KHz, 999.2 KHz, 999.7 KHz, 1000.3 KHz, 1000.8 KHz, and 1002 KHz";
choices[24][3] = "None of these";
answers[24] = choices[24][2];

questions[25] = "26. The percentage of modulation for 45 KHz deviation in the FM broadcast band will be";
choices[25] = new Array();
choices[25][0] = "30 %";
choices[25][1] = "40 %";
choices[25][2] = "60 %";
choices[25][3] = "90 %";
answers[25] = choices[25][2];

questions[26] = "27. For a FM wave carrier modulating frequency is 10 KHz and bandwidth is 2 MHz. If the modulating signal amplitude is doubled, the bandwidth will be";
choices[26] = new Array();
choices[26][0] = "0.5 MHz";
choices[26][1] = "1 MHz";
choices[26][2] = "2 MHz";
choices[26][3] = "4 MHz";
answers[26] = choices[26][3];


questions[27] = "28. In AM receiver the oscillator frequency is";
choices[27] = new Array();
choices[27][0] = "Always equal to signal frequency";
choices[27][1] = "Always equal to 455 KHz";
choices[27][2] = "Always higher than signal frequency";
choices[27][3] = "Always lower than signal frequency";
answers[27] = choices[27][2];

questions[28] = "29. Select the one in which quantization noise occurs";
choices[28] = new Array();
choices[28][0] = "PCM";
choices[28][1] = "TDM";
choices[28][2] = "FDM";
choices[28][3] = "PWD";
answers[28] = choices[28][0];
 
 questions[29] = "30. In grid bias modulation system the power needed for modulating amplifier";
choices[29] = new Array();
choices[29][0] = "Is negligibly low since grid is negative";
choices[29][1] = "Is large as compared to that for the plate modulation";
choices[29][2] = "Is almost the same as compared with plate modulation";
choices[29][3] = "Is small as compared to that for plate modulation";
answers[29] = choices[29][3];

questions[30] = "31. Which of the following is the fastest switching device ?";
choices[30] = new Array();
choices[30][0] = "JFET";
choices[30][1] = "BJT";
choices[30][2] = "MOSFET";
choices[30][3] = "Triode";
answers[30] = choices[30][2];