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DRDO Exam Papers For Electronics And Communication Pdf |
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Re: drdo exam papers for electronics and communication pdf About the DRDO CEPTAM Exam Defence Research and Development Organization (DRDO) conducts a Centre for Personnel Talent Management the Entry test (CEPTAM) for the recruitment of Senior Technical Assistant ‘B’ (STA’B’), Technician ‘A’ (Tech ‘A’), Assistant (Hindi), Admin & Allied Category Posts. The Question Paper for the Electronics Engineering of DRDO CEPTAM Exam is given below What does LED stand for (a) Light Emitting Display (b) Low Engery Display (c) Light Emitting Diode (d) Light Emitting Detector What is the total opposition to current in a series RC circuit called (a) Impedance (b) Inductance (c) Reactance (d) Resistance The common collector amplifier is also known as (a) Collector Follower (b) Base Follower (c) Emitter Follower (d) Source Follower If two resistors are place in series, is the final resistance (a) Higher (b) Lower (c) The same (d) Cannot be determined . A CRO is a (a) Cathode Ray Oscillator (b) Cathode Ray Oscilloscope (c) Capacitor Resistor Oscillator (d) Capacitor-Resistor Output If the resistance in a circuit with constant voltage increases, the current will (a) Increase (b) Decrease (c) Stay the same (d) Not enough information What is the most commonly used conductor in electronics (a) Aluminum (b) Copper (c) Gold (d) Silver Increase the number of turns of wire on the secondary of a transformer will (a) Increase the secondary current (b) Decrease the secondary current (c) Have no effect on the secondary current (d) Increase the primary current Junction field effect transistors (JFET) contain how many diodes (a) 4 (b) 3 (c) 2 (d) 1 At any given time in an intrinsic piece of semiconductor material at room temperature (a) Electrons drift randomly (b) Recombination occurs (c) Holes are created (d) All of the above . Aluminum has a higher atomic packing factor than molybdenum by about 6%. This means that A. Aluminum is heavier than molybdenum B. the ratio of the volume of the unit cell to the volume of the atoms per unit cell is lower in aluminum C. The ratio of the number of atoms per unit cell to size of the cell is roughly equal to Both D. The distance between atoms are equal for both A microwave junction is supposed to be matched at all ports if in the S matrix A. all the diagonal elements are zero B. all the diagonal elements are equal but not zero C. all the diagonal elements are complex D. is Hermitian . Radar becons are used for A. target identification B. navigation C. causing significant extensions of the maximum range D. all of these Which of the following statements is / are correct? A. All the resonant frequencies of a microwave cavity are harmonics of a single frequency B. No two of the resonant frequencies of a microwave cavity are harmonics of a single frequency C. Resonant frequencies of a microwave cavity form distinct sets of harmonically related frequencies D. None of the above, because a microwave cavity does not resonate at a number of frequencies. Satellite repeater serves to A. to receive signal from the satellite B. to repeat the satellite signals received C. to change the frequency of signals received from the repeater D. none of these A student would like to separate the various components of a sample of ink in the laboratory. Which of the following techniques would be most suitable for him to use ? A. Filtration B. Distillation C. Titration D. Paper chromatography. The nature of atomic bond found in diamond is A. ionic B. covalent C. metallic D. none of the above . Waveguides are pressurized above normal atmospheric pressure for A. increasing their power handling capacity B. improving the conductivity of their walls C. preventing higher order modes from propagating D. varying the wave impedance The Doppler Effect is used in A. Pulsed Radar B. CW Radar C. MTI D. both (a) and (c) Two dissimilar antennas having their maximum directivities equal. A. must have their beam widths also equal B. cannot have their beam widths equal because they are dissimilar antennas C. may not necessarily have their maximum power gains equal D. must have their effective aperture areas (capture areas) also equal. |
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