engineering recuitment BHEL Engineer Trainee Mock Test 2025 Control Systems Signal Flow Graph and Block Diagram
The sum of the gains of the feedback paths in the signal flow graph shown in the figure is -
1
af + be + cd + abef + abcdef
2
af + be + cd + cbef + bcde + abcdef
3
af + be + cd
4
af + be + cd + abef + bcde