MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
What is the correct formula for average wavelength to describe surface roughness? (Where, Ra is the arithmetic mean deviation from the mean line of profile) |
| A. | 2π x R<sub>a</sub> / Mean slope |
| B. | 2π x R<sub>a</sub> x Mean slope |
| C. | 2π / R<sub>a</sub> x Mean slope |
| D. | 2π / R<sub>a</sub> / Mean slope |
| Answer» B. 2‚âà√¨‚àö√ë x R<sub>a</sub> x Mean slope | |