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1
GATE ECE 2026
MCQ (Single Correct Answer)
+1
-0.33

A control system is shown in the Figure.

Which option represents the correct transfer function of the system?

GATE ECE 2026 Control Systems - Signal Flow Graph and Block Diagram Question 1 English

A

$\frac{1}{(s+4)^2}$

B

$\frac{1}{(s+4)}$

C

$\frac{2}{(s+4)}$

D

$\frac{1}{\left(s^2+8 s+17\right)}$

2
GATE ECE 2016 Set 3
MCQ (Single Correct Answer)
+1
-0.3
The block diagram of a feedback control system is shown in the figure. The overall closed-loop gain G of the system is GATE ECE 2016 Set 3 Control Systems - Signal Flow Graph and Block Diagram Question 12 English
A
$$G=\frac{G_1G_2}{1 + G_1H_1}$$
B
$$G=\frac{G_1G_2}{1\;+\;G_1G_2+\;G_1H_1}$$
C
$$G=\frac{G_1G_2}{1\;+\;G_1G_2H_1}$$
D
$$G=\frac{G_1G_2}{1\;+\;G_1G_2\;+\;G_1G_2H_1}$$
3
GATE ECE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
For the signal flow graph shown in the figure, the value of $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mathrm s\right)}$$ is GATE ECE 2015 Set 2 Control Systems - Signal Flow Graph and Block Diagram Question 13 English
A
GATE ECE 2015 Set 2 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 1
B
GATE ECE 2015 Set 2 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 2
C
GATE ECE 2015 Set 2 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 3
D
GATE ECE 2015 Set 2 Control Systems - Signal Flow Graph and Block Diagram Question 13 English Option 4
4
GATE ECE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
By performing cascading and/or summing/differencing operations using transfer function blocks G1(s) and G2(s), one CANNOT realize a transfer function of the form
A
G1(s)G2(s)
B
$$\frac{G_1\left(s\right)}{G_2\left(s\right)}$$
C
$$G_1\left(s\right)\left(\frac1{G_1s}+G_2(s)\right)$$
D
$$G_1\left(s\right)\left(\frac1{G_1s}-G_2(s)\right)$$
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