**2005**

1. A ramp input applied to a unity feedback system results in 5% steady state error. The Type number and zero frequency gain of the system are respectively

a) 1 and 20

b) 0 and 20

c) 0 and 1/20

d) 1 and 1/20

**Solution :**https://www.youtube.com/watch?v=cmSIdjxqW-s

**2009**

2. The unit step response of an under damped second order system has steady state value of – 2. Which of the following transfer functions has these properties?

**Solution :**https://www.youtube.com/watch?v=FVflQ49wsF8

**2014**

3. The steady state error of the system shown in the figure for a unit step input is ___________

**Solution :**https://www.youtube.com/watch?v=FYTHpf7oG_w

**2015**

4. The position control of a DC servo-motor is given in the figure. The values of the parameters are KT = 1 N-mA, R

_{a}= 1 ohm, L

_{a}= 0.1 H, J = 5 kg-m

^{2}, B = 1 N-m/(rad/sec) and Kb = 1 volt/(rad/sec). The steady state position response(in radians) due to unit impulse disturbance torque T

_{d}is _______.

**Solution :**https://www.youtube.com/watch?v=mbkr17M1Cng

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