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Control Systems
The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its open loop transfer function is
(2s+2)/s²
(2s+1)/(s+1)²
(2s+2)/(s+1)²
(2s+1)/s²
(2s+2)/s²
(2s+1)/(s+1)²
(2s+2)/(s+1)²
(2s+1)/s²
Answer
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Related Question
Control Systems
In frequency response analysis of second order system, the error at corner frequency is
10 logξ
20 log2ξ
-20 log2ξ
-10 logξ
10 logξ
20 log2ξ
-20 log2ξ
-10 logξ
Answer
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Control Systems
In force-current analogy, electrical analogous quantity for displacement (x) is
inductance.
flux.
capacitance.
voltage.
inductance.
flux.
capacitance.
voltage.
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 = cot(Tω1)
Tω1 = cot(ω1)
Tω1 = tan(ω1)
ω1 = tan(Tω1)
ω1 = cot(Tω1)
Tω1 = cot(ω1)
Tω1 = tan(ω1)
ω1 = tan(Tω1)
Answer
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Control Systems
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?
2.0 Volt.
2.5 Volt.
1.5 Volt.
1.0 Volt.
2.0 Volt.
2.5 Volt.
1.5 Volt.
1.0 Volt.
Answer
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Control Systems
The value of 'a' in to give phase margin = 45o will be
0.9.
1.414.
1.18.
0.707.
0.9.
1.414.
1.18.
0.707.
Answer
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