Company: DRDO 1. The state space equation of the circuit shown in given figure for x1=v0, x2=I is 2. The open loop gain of a unity feedback system is G(s)=wn^2 / s(s+2wn). The unit step response c(t) of the system is 3. The angles of the asymptotes of the root loci of the equation s^3 […]
DRDO Placement Papers
DRDO GENERAL ABILITY TEST – Aug 2011 @ Ahmedabad
Company: DRDO 1.A negative feedback is applied to an amplifier with the feedback voltage proportional to the output current. This feedback increases the a) input impedance of the amplifier b) output impedance of the amplifier c) distortion in the amplifier d) gain of the amplifier 2.The early effect in a BJT is modeled by the […]
DRDO GENERAL ABILITY TEST – Aug 2011 @ Chennai
Company: DRDO GENERAL ABILITY TEST 1. Sarnath is situated in the state of a) MP b) Bihar c) Punjab d) UP 2. Green house effect is due to the increase of atmospheric a) CO2 level b) SO2 level c) CO level d) N2 level 3. In the month of July, it is winter in a) […]
DRDO Technical Electronics Placement Paper – Sep 2010
Company: DRDO 1. Ordinary mercury-in-glass thermometer (without any covering or air gap) is an example of (A) zero-order system (B) first-order system (C) second-order system (D) third-order system 2. The symbol of the type __________ denotes (A) Pneumatic line (B) Fluid pressure line (C) Electrical line (D) Software link 3. The Laplace transform of sin […]
DRDO Paper Technical Electronics – Sep 2010 at Kolkata
Company: DRDO 1. The velocity profile u in the boundary layer over a flat plate is given by . where U is the free stream velocity, y is the vertical distance of the velocity point from the flat plate and d is the boundary layer thickness. The displacement thickness of the boundary layer is (A) […]