Technician A says that a range shift is used to select high or low gear ratios within the transfer case is true while Technician B is false.
A range shift is known to often take place when there is either high or low speed ratio of the given transfer case that is known to be selected.
Note that A range shift arrangement is known to be seen for moving a gear reduction unit that is found between a low-range operating speed and also that of a high-range operating speed.
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