Paper Title : drdo ceptam placement paper  candidate experiences Test Location : Delhi Posted Date : 10 Feb 2008 Paper Type : Candidate Experiences 

DRDO PAPER ON 7th SEPTEMBER AT RAIPUR
I have appeared for DRDO SET exam held on 7th Sep 2008.I belongs to Electronics and Communication branch. The paper was not very tough. As given in the DRDO syllabus there were questions from all 8 topics. There were in all 150 questions, 100 technical with a negative marking of 1 per wrong answer and 4 for right one, and 50 from logical, spatial, conceptual, abstract, and numerical reasoning with a negative marking of 0.5 per wrong answer and 2 for right one. Total duration is of 3 hours. For electronics branch the technical questions include –  From networks (in all 1012 questions), some simple circuits were given and currentvoltage in some branch was asked.  On wyedelta formula  Question on graphs, cut set matrix etc.  On maximum power transfer theorem and superposition principle.  From electron devices (in all 45 questions), on JFET pinch off voltage formula  Pwell fabrication process  PIN diode  Mobility of electron and proton  From analog (in all 910 questions), to find output of a subtractor opamp circuit  Some diode circuit was given and asked which diode is on and off and the net voltage at output.  On opamp integrator circuit output.  From digital (in all 910 questions), to find 2's complement.  One Boolean function was given for reducing.  On properties of logic families like which family among following has maximum propagation delay etc..  On resolution formula of ADCDAC's  About interrupts in microprocessors, like which one is level or edge triggered.  No program was given to find output but something was asked about 1 command.  From signals and systems (in all 78 questions), formula based question to find transforms.  Some function was given and was asked to find whether it is causal, timevariant, linear etc or not.  From control systems (in all 78 questions), 1 on PID controller equation.  1 function was given and its signal flow graph was asked.  On root loci angle formula.  To find electrical analogue of given mechanical elements, match the column type.  From communication (in all 910 questions), some on mean, power spectral density, probability density function etc…  To find image frequency in superheterodyne receiver.  On SNR.  1 to find entropy with given probabilities.  1 on GSM.  From electromagnetics (in all 78 questions), on divergence theorem.  1 on integral form of Maxwell's equation, we have to choose wrong one out  Some on plane waves between 2 media.  Single and multi mode index fiber  On antenna, to find radiation pattern of given dipole etc.  Where is Sarnath located? Ans Varanasi (U.P.)  When was DRDO established? Ans 1954  SAMYUKTA is used by whom army, navy or air force? Ans Army  HUMSA is used for.  About 1 type of pea which DRDO has introduced.  Acrophobia is the fear from what?  To find particular solution of given differential equation.  On A.P., G.P. formula.  Some on complex numbers.  Some 45 words were given and was asked to find out how many are spelt incorrectly.  Some questions were to find out punctuation and grammatical errors.  Some figures were given and rotated in some direction. We have to complete the sequence. Nearly 67 questions were there on such spatial reasoning. Shilpa 