Q7-Circle the correct answer: 1. In an open loop control system a- Output is independent of control input b- Output is dependent on control input c-Only system parameters have effect on the control output d- None of the above 2. For open control system which of the following statements is incorrect? a-Less expensive b- Recalibration is not required for maintaining the required quality of the output c-Construction is simple and maintenance easy d-Errors are caused by disturbances 3. A good control system has all the following features except a- good stability b- slow response c-good accuracy d-sufficient power handling capacity 4. A car is retaining at a constant speed of 50 km/h, which of the following is the feedback element for the driver? a- Clutch b- Eyes c- Needle of the speedometer d-Steering wheel 5- Closed loop system is distinguished from open loop system by which of the following? a- Servomechanism b- Feedback c- Output pattern d- Input pattern 6- Transfer function is used to study? a- Transient behaviours of systems only b- Steady behaviours of systems only c- Neither steady nor transient behaviours of systems d- Steady and transient behaviours of systems