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Control Systems
Signal Flow Graph and Block Diagram
Marks 1Marks 2Marks 5
Time Response Analysis
Marks 1Marks 2Marks 5Marks 8Marks 10
Compensators
Marks 1Marks 2Marks 5Marks 8
Basic of Control Systems
Marks 1Marks 2
Frequency Response Analysis
Marks 1Marks 2Marks 5Marks 8Marks 10
Stability
Marks 1Marks 2Marks 5
Root Locus Diagram
Marks 1Marks 2
State Space Analysis
Marks 1Marks 2Marks 5Marks 10
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1
GATE ECE 2025
MCQ (Single Correct Answer)
+2
-0.67

Consider a system represented by the block diagram shown below. Which of the following signal flow graphs represent(s) this system? Choose the correct option(s).

GATE ECE 2025 Control Systems - Signal Flow Graph and Block Diagram Question 1 English
A
GATE ECE 2025 Control Systems - Signal Flow Graph and Block Diagram Question 1 English Option 1
B
GATE ECE 2025 Control Systems - Signal Flow Graph and Block Diagram Question 1 English Option 2
C
GATE ECE 2025 Control Systems - Signal Flow Graph and Block Diagram Question 1 English Option 3
D
GATE ECE 2025 Control Systems - Signal Flow Graph and Block Diagram Question 1 English Option 4
2
GATE ECE 2023
MCQ (Single Correct Answer)
+2
-0.67

In the following block diagram, R(s) and D(s) are two inputs. The output Y(s) is expressed as Y(s) = G$$_1$$(s)R(s) + G$$_2$$(s)D(s).

G$$_1$$(s) and G$$_2$$(s) are given by

GATE ECE 2023 Control Systems - Signal Flow Graph and Block Diagram Question 2 English

A
$${G_1}(s) = {{G(s)} \over {1 + G(s) + G(s)H(s)}}$$ and $${G_2}(s) = {{G(s)} \over {1 + G(s) + G(s)H(s)}}$$
B
$${G_1}(s) = {{G(s)} \over {1 + G(s) + H(s)}}$$ and $${G_2}(s) = {{G(s)} \over {1 + G(s) + H(s)}}$$
C
$${G_1}(s) = {{G(s)} \over {1 + G(s) + H(s)}}$$ and $${G_2}(s) = {{G(s)} \over {1 + G(s) + G(s)H(s)}}$$
D
$${G_1}(s) = {{G(s)} \over {1 + G(s) + G(s)H(s)}}$$ and $${G_2}(s) = {{G(s)} \over {1 + G(s) + H(s)}}$$
3
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
The signal flow graph for a system is given below. The transfer function $$\frac{Y(s)}{U(s)}$$ for this system is GATE ECE 2013 Control Systems - Signal Flow Graph and Block Diagram Question 16 English
A
$$\frac{s+1}{5s^2+6s+2}$$
B
$$\frac{s+1}{s^2+6s+2}$$
C
$$\frac{s+1}{s^2+4s+2}$$
D
$$\frac{1}{5s^2+6s+2}$$
4
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
Consider the signal flow graph shown in Figure. The gain $$\frac{x_5}{x_1}$$ is GATE ECE 2004 Control Systems - Signal Flow Graph and Block Diagram Question 5 English
A
$$\frac{1-\left(be\;+\;cf\;+\;dg\right)}{abcd}$$
B
$$\frac{bedg}{1-\left(be\;+\;cf\;+\;dg\right)}$$
C
$$\frac{abcd}{1-\left(be\;+\;cf\;+\;dg\right)\;+\;bedg}$$
D
$$\frac{1-\left(be\;+\;cf\;+\;dg\right)\;+\;bedg}{abcd}$$
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Questions Asked from Marks 2
GATE ECE 2025 (1) GATE ECE 2023 (1) GATE ECE 2013 (1) GATE ECE 2004 (1) GATE ECE 2003 (1) GATE ECE 2001 (1) GATE ECE 1997 (1) GATE ECE 1991 (1) GATE ECE 1987 (2)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics