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1

GATE ECE 2001

MCQ (Single Correct Answer)

+1

-0.3

If the characteristic equation of a closed-loop system is s² + 2s + 2 =0, then the system is

A

overdamped

B

critically damped

C

underdamped

D

undamped

2

GATE ECE 2001

MCQ (Single Correct Answer)

+1

-0.3

The equivalent of the block diagram in Figure is given as GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English

GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English

A

GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 1

B

GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 2

C

GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 3

D

GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 4

3

GATE ECE 2001

MCQ (Single Correct Answer)

+2

-0.6

An electrical system and its signal-flow graph representations are shown in Figure (a) and (b) respectively. The values of G₂ and H, respectively are GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 6 English

GATE ECE 2001 Control Systems - Signal Flow Graph and Block Diagram Question 6 English

A

$$\frac{Z_3\left(s\right)}{Z_2\left(s\right)+Z_3\left(s\right)+Z_4\left(s\right)},\frac{-Z_3\left(s\right)}{Z_1\left(s\right)+Z_3\left(s\right)}$$

B

$$\frac{-Z_3\left(s\right)}{Z_2\left(s\right)-Z_3\left(s\right)+Z_4\left(s\right)},\frac{-Z_3\left(s\right)}{Z_1\left(s\right)+Z_3\left(s\right)}$$

C

$$\frac{Z_3\left(s\right)}{Z_2\left(s\right)+Z_3\left(s\right)+Z_4\left(s\right)},\frac{Z_3\left(s\right)}{Z_1\left(s\right)+Z_3\left(s\right)}$$

D

$$\frac{-Z_3\left(s\right)}{Z_2\left(s\right)-Z_3\left(s\right)+Z_4\left(s\right)},\frac{Z_3\left(s\right)}{Z_1\left(s\right)+Z_3\left(s\right)}$$

4

GATE ECE 2001

MCQ (Single Correct Answer)

+2

-0.6

The feedback control system in Figure is stable GATE ECE 2001 Control Systems - Stability Question 14 English

GATE ECE 2001 Control Systems - Stability Question 14 English

A

for all K $$\geq$$ 0

B

only if K $$\geq$$ 1

C

only if 0 $$\leq$$ K < 1

D

only if 0 $$\leq$$ K $$\leq$$ 1

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