(2.25-05 Mark) Question : 1. For a first order system having transfer tenction TF(s) the unit impulse responses D. . 2. If finite number of blocks are connected in series or cascade configuration, then how are the blocks combined algebraically? C. By differentiation D. By integration B. By multiplication A. By addition (248.25-6.5 Mark) Question II: Find the inverse Laplace transform of: . F(s) s+2 (s+3)(s+4)s F(s) = (5+1)2 (s+2) Question III: (05 Mark) C's) 3 Check the stability of the system whose closed-loop transfer function is CLTF-R(S) s(s+ 1)(s* + 2) +3 Question IV: (248.25-6.5 Mark) 1. The plot in the following figure shows the unit impulse response of a first-order system. Transfer function of the system is A TE 10 1+2s 5 1+2s 20 B TF= 1 +2s 10 DTF CTF 2. The plot in the following figure shows the unit step response of a first-order system. Transfer function of the system is 2 1.8 1.6 1.4 1.2 Amplitude 1 0.8 0.6 0.4 0.2 0 0 5 5 20 A. TE 1 1 + 5s 2 1 + 3s 10 15 Time (seconds) 2 B.TF 1 + 15s 1 D. TF 1 + 15s C. TF 2