Q.

The reaction time of a driver assumed in OSD is ___________

A. 1 sec
B. 2 sec
C. 2.5sec
D. 3 sec
Answer» B. 2 sec
Explanation: the reaction time assumed is 2 sec which is less than time taken in ssd because here the driver does not need to perceive and react so this time is less than the time taken in ssd.
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