 
			 
			MCQOPTIONS
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				| 1. | The input signals to control systems are not known fully ahead of time, the characteristics of control system which suddenly strain a control system are: | 
| A. | Sudden shock | 
| B. | Sudden change | 
| C. | Constant velocity and acceleration | 
| D. | All of the mentioned | 
| Answer» E. | |