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Control Systems
The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes?
180°
360°
60°
120°
180°
360°
60°
120°
Answer
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Related Question
Control Systems
None of the poles of a linear control system lie in the right half of s plane. For a bounded input, the output of this system
tends to zero.
none of these.
always bounded.
could be unbounded.
tends to zero.
none of these.
always bounded.
could be unbounded.
Answer
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Control Systems
The second order system defined by 25/(s2 + 5s + 25) is given a step input. The time taken for the output to settle with in 2 % of input is
1.6 sec.
1.2 sec.
2 sec.
0.4 sec.
1.6 sec.
1.2 sec.
2 sec.
0.4 sec.
Answer
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Control Systems
A unity feedback control system has forward loop transfer function as e-Ts/s(s+1). Its phase value will be zero at frequency ω1. Which of the following equations should be satisfied by ω1?
ω1 = tan(Tω1)
Tω1 = cot(ω1)
Tω1 = tan(ω1)
ω1 = cot(Tω1)
ω1 = tan(Tω1)
Tω1 = cot(ω1)
Tω1 = tan(ω1)
ω1 = cot(Tω1)
Answer
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Control Systems
Advantages of open loop control system is/are
accurate.
reliable.
simple and economical.
All of these
accurate.
reliable.
simple and economical.
All of these
Answer
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Control Systems
The system having characteristic equation is used to be an oscillator. What is the value of k?
4
2
3
1
4
2
3
1
Answer
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