Q. In terms of ξ and ωn the settling time of a second order systems for 2% criterion and step input is equal to

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Q. Robotic manipulator arms mostly use

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Q. The sensor generally used in incremental optical encoder is

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Q. Integral control action

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Q. For any test point s on the real axis, the sum of angular contributions of the complex conjugate poles is

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Q. Nyquist stability criterion uses open loop frequency response characteristics.

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Q. For G(jω) = 1 / (1+jωT) as ω approaches infinity, the magnitude approaches zero and phase angle approaches - 90°.

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Q. For type 1 system the velocity lag error is

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Q. A lead compensator

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Q. Which of the following can be used as a rotating amplifier in a control system?

1. Amplidyne
2. Separately excited dc generator
3. Synchro
4. Self excited dc generator

Select the answer from the following codes:

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Q. Which of the following features is not associated with Nichols chart?

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Q. If any term in the first column of a Routh array becomes zero, then

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Q. In force current analogue, mechanical mobility is analogous to

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Q. The effect of adding poles and zeros can be determined quickly by

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Q. Assertion (A): When performance specifications are given in term of transient response characteristics, root locus method is a suitable method.

Reason (R): When performance specifications in terms of state variables are given, modern control methods can be used.

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Q. If the poles lie in second quadrant, damping ratio is

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Q. Lag compensation permits a high gain at low frequencies.

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Q. If the characteristic equation is (λ + 1) (λ + 2) (λ + 3) = 0, the eigen values are

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Q. Assertion (A): If points at infinity are included, G(s) has same number of poles and zeros.

Reason (R): The function G(s) = K(s+2) / (s+5)² has a zero at s = - 2.

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Q. DC tachogenerator can be used in

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