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| Q. |
What are the two grades of angle gauges? |
| A. | master and tool room |
| B. | precise and normal |
| C. | standard and industrial |
| D. | high and low |
| Answer» A. master and tool room | |
| Explanation: master grade is laboratory standard and made from steel carbide or tungsten carbide. tool grade is normal industrial purpose angle gauges made from steel. | |
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