b) Output has no control over input signal just some effect system, a) Output control the input signal 1. In an open-loop control .. D) Oulput has no control over input signal just some effeci c) Some other variable control the input signal a) Neither output nor amy oler vuriuble has any effect on mput

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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1. In an open-loop control
system,
a) Output control the input signal
b) Output has no control over input signal just some epeci
c) Some other variable control the input signal
a) Neither output nor any other variable has any effect on inpul
2. For the system described by the differential equation:
d'y(1)
dt
be:
+ u(t), The transfer function is derived to
dt
+3d"y(1), dy(t).
du(t)
dt
+3.
dt
+ y(1) =
a)
U(s)
s+3s+35+1
(s)
S+1
35+35+!
(:)
S+3
%3D
U(:)
1(:)
S+1
U(r)
3. If the characteristic equation of a system is given by S? + 2.S + 4, what is the
damped natural frequency in rad/s?
a)
b)
c)
d)
2
0.5
4. For the characteristic equation: S3 - 452 +S + 6 = 0, the number of roots in
the left half of s-plane is
Zero
One
Two
Three
a)
り
の
5. The unit step response of a system is given as: y(t) -+5t -e-2, the
transfer function of the system is:
10 S+1)
a)
S(S+2)
5(5+1)
b)
S(S+2.5)
(S+5)
c)
SIS+1)
5(5+1)
25(S+2)
Transcribed Image Text:1. In an open-loop control system, a) Output control the input signal b) Output has no control over input signal just some epeci c) Some other variable control the input signal a) Neither output nor any other variable has any effect on inpul 2. For the system described by the differential equation: d'y(1) dt be: + u(t), The transfer function is derived to dt +3d"y(1), dy(t). du(t) dt +3. dt + y(1) = a) U(s) s+3s+35+1 (s) S+1 35+35+! (:) S+3 %3D U(:) 1(:) S+1 U(r) 3. If the characteristic equation of a system is given by S? + 2.S + 4, what is the damped natural frequency in rad/s? a) b) c) d) 2 0.5 4. For the characteristic equation: S3 - 452 +S + 6 = 0, the number of roots in the left half of s-plane is Zero One Two Three a) り の 5. The unit step response of a system is given as: y(t) -+5t -e-2, the transfer function of the system is: 10 S+1) a) S(S+2) 5(5+1) b) S(S+2.5) (S+5) c) SIS+1) 5(5+1) 25(S+2)
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