GATE & PSUs - Electrical & Electronics Engineering (EE & ECE)

Root Locus Construction Rules question bank (Control Systems)

Practice 6 free GATE & PSUs - Electrical & Electronics Engineering (EE & ECE) Control Systems - Root Locus Construction Rules questions with answers and step-by-step solutions.

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Q1.

[Root Locus Construction Rules Concept 4] The open-loop transfer function of a unity negative feedback control system is $G(s) = \frac{K}{s(s+2)(s+4)}$. What is the range of gain $K > 0$ for which the closed-loop system is strictly stable?

(A)

$0 < K < 48$

(B)

$0 < K < 24$

(C)

$0 < K < 96$

(D)

$K > 48$

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Q2.

[Root Locus Construction Rules Concept 10] The open-loop transfer function of a unity negative feedback control system is $G(s) = \frac{K}{s(s+2)(s+4)}$. What is the range of gain $K > 0$ for which the closed-loop system is strictly stable?

(A)

$0 < K < 48$

(B)

$0 < K < 24$

(C)

$0 < K < 96$

(D)

$K > 48$

Show answer & solution

Verified Answer & Solution Locked

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