Control System Applications set 3

Que.An L.T.I. system is stable if _______
a. Poles lie on left half of s-plane
b. The R.O.C. encompasses the imaginary axis
c. The poles lie on the left half of s-plane and the R.O.C. encompasses the imaginary axis
d. Cannot be determined
Que.The final value of the following transfer function is ________
F(s)= 2/s(s-824)

a. Not calculable
b. -1/412
c. 0
d. 1
Que.The number of inverse lapalace transform of a function is equal to ________
a. the number of poles
b. the number of poles+1
c. the number of poles-1
d. cannot be determined
Que.The laplace transform method used to solve a differential function is ____ than the classical way.
a. Easier
b. Harder
c. Moderately difficult
d. Relatively difficult
Que.What is the output of the following code?
laplace[t,t,2]

a. 1/16
b. Error
c. 1/s^2
d. Cannot be determined
Que.The laplace transform of a cascaded system is defined if _______
a. the individual systems have a common R.O.C.
b. the individual systems doesn’t have a common R.O.C.
c. the impulse response of each system is defined
d. cannot be determined
Que.The inverse laplace transform of a function in s-domain is the transfer function of the system.
a. True
b. False
c. May be True or False
d. Can’t say
Que.The following output is defined for _______
>>ilaplace(1/s)
>> ans=
        1

a. t>0
b. t>=0
c. for all t
d. t<0
Que.The differential equation d2p/dt2=9t has a solution.
a. 3/(2*t³)
b. cannot be determined
c. no solution
d. ilaplace(9/s⁴)
Que.What is the output of the following code?
syms t; laplace(-t/t)

a. The laplace transform of u(-t)
b. The laplace transform of -u(t)
c. The laplace transform of -u(-t)
d. The laplace transform of -u(t)
Que.The transient response, yt(t), of a system becomes ____ as t tends to infinity.
a. 0
b. 1
c. Infinity
d. Undefined

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