Q. Universe is a large system having infinite small systems.
Q. Simultaneous equations can be solved by using signal flow graph technique.
Q. An open loop control system is one in which the control action is not independent of the output.
Q. All control systems operated by present timing mechanism are open loop.
Q. In the presence of non-linearities the closed-loop control system operates better in comparison to an open loop control system.
Q. In open-loop control system stability cannot be ensured.
Q. Each system may have a large number of subsystems.
Q. Closed-loop control systems are generally troubled with problems of instability.
Q. In a closed loop control system feedback signal is usually negative.
Q. A positive feedback signal improves the performance of an automatic control system.
Q. In open loop control system, the control action depends upon the desired output.
Q. A linear system obeys superposition theorem.
Q. The transfer function equation determines the system dynamics.
Q. A Temperature control system is process control system.
Q. Negative feedback reduces the gain of the system.
