engineering recuitment NIELIT Scientific Assistant Mock Test 2025 Control Systems Signal Flow Graph and Block Diagram Block Diagram Reduction Using Signal Flow Graph
The transfer function for the given signal flow graph is
1
\(\frac{{{G_1}{G_4}\left( {{G_2} + {G_3}} \right)}}{{1 - {G_1}{G_4}{H_1} + {G_1}{G_2}{G_4}{H_2}}}\)
2
\(\frac{{{G_1}{G_4}\left( {{G_2} + {G_3}} \right)}}{{1 - {G_1}{G_4}{H_1} + {G_1}{G_3}{G_4} + {G_1}{G_2}{G_4}{H_2}}}\)
3
\(\frac{{{G_1}{G_4}\left( {{G_2} + {G_3}} \right)}}{{1 - {G_1}{G_4}{H_1} + {G_1}{G_3}{G_4}{H_2} + {G_1}{G_2}{G_4}{H_2}}}\)
4
\(\frac{{{G_1}{G_4}\left( {{G_2} + {G_3}} \right)}}{{1 + {G_1}{G_4}{H_1} - {G_1}{G_3}{G_4} - {G_1}{G_2}{G_4}{H_2}}}\)