Control Systems - Study Mode
[#226] A system's open loop transfer function is given by $$Gleft( s
ight) = frac{K}{{sleft( {s + 2}
ight)left( {s + 4}
ight)}}.$$ xa0 xa0 If system is having a unity negative feedback, which of the following is true for such system to be stable?
Correct Answer
(D) None of the above
[#227] The below figure shows the root locus of a unity feedback system. The open loop transfer function of the system is:
Correct Answer
(D) $$frac{{Kleft( {s + 2}
ight)}}{{sleft( {s + 1}
ight)}}$$
[#228] In case of synchro error detector, the electrical zero position of control transformer is obtained when angular displacement between rotors is:
Correct Answer
(C) 90°
[#229] Separation property of state-transition matrix is:
Correct Answer
(C) φ(t - t 0 ) = φ(t) φ -1 (t 0 )
[#230] Given [A = left[ {x08egin{array}{*{20}{c}}
1&0\
0&1
end{array}}
ight]] xa0 the state transition matrix e At is given by
Correct Answer
(B) [left[ {x08egin{array}{*{20}{c}}
{{e^t}}&0\
0&{{e^t}}
end{array}}
ight]]