A system has the transfer function 1+s Its gain at 1 rad/s is

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1. Choose the correct answer:
(a) A system has the transfer function
1+s
Its gain at 1 rad/s is
(i) 1
(ii) 0
(iii) -1
(iv) 0.5
(b) For the characteristic equation s(s + 4)(s + 7) + k(s + 1)(s + 5) the roots of the
system at k o will be at
(i) -1, -5 and o
(ii) -4, -7 and o
(iii) -4, 00 and -o
(iv) 0, -1 and -4
1-s
It is known as
1+s
(c) A system has the transfer function
(i) minimum phase system
(iii) low-pass system
(ii) non-minimum phase systemn
(iv) high-pass system
10(s + 1)(s+10)
(d) The transfer function of a system is given by G(s)-
The
s(s+5(s +3s+ 10)
type and the order of the system are respectively
(ii) 4 and 9
(e) The type number of a transfer function denotes the number of
(i) 4 and 7
(iii) 7 and 5
(iv) 5 and 7
(i) poles at the origin
(iii) poles at infinity
(ii) zeros at the origin
(iv) none of these
K
() Given that G(s):
The type and the order of the system are
%3D
s(s+2)(s+3)
(i) 3 and 3
(11) 2 arnd 4
(1 3 and 1
(iv) 3 and 0
2.
What is a linear time-invariant system?
Transcribed Image Text:1. Choose the correct answer: (a) A system has the transfer function 1+s Its gain at 1 rad/s is (i) 1 (ii) 0 (iii) -1 (iv) 0.5 (b) For the characteristic equation s(s + 4)(s + 7) + k(s + 1)(s + 5) the roots of the system at k o will be at (i) -1, -5 and o (ii) -4, -7 and o (iii) -4, 00 and -o (iv) 0, -1 and -4 1-s It is known as 1+s (c) A system has the transfer function (i) minimum phase system (iii) low-pass system (ii) non-minimum phase systemn (iv) high-pass system 10(s + 1)(s+10) (d) The transfer function of a system is given by G(s)- The s(s+5(s +3s+ 10) type and the order of the system are respectively (ii) 4 and 9 (e) The type number of a transfer function denotes the number of (i) 4 and 7 (iii) 7 and 5 (iv) 5 and 7 (i) poles at the origin (iii) poles at infinity (ii) zeros at the origin (iv) none of these K () Given that G(s): The type and the order of the system are %3D s(s+2)(s+3) (i) 3 and 3 (11) 2 arnd 4 (1 3 and 1 (iv) 3 and 0 2. What is a linear time-invariant system?
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