MCQOPTIONS
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| 1. |
Which of the following is incorrect about bench centre’s physical characteristics?$ |
| A. | Centre holders may be located in any position |
| B. | Box type straight edges have a rigid cross section for minimum deflection |
| C. | Minimum hardness of bench centre’s base is 180 HB |
| D. | Male or female centres are non-adjustable on bench centres |
| Answer» E. | |