19. Built-Up Edge (BUE) accumulates on a. Flank face b. Rake face c. Side face 20. In orthogonal turning, increasing the positive rake angle, will: a. Reduce forces b. Reduce temperatures c. Premature tool chipping d. all of them 21. To avoid BUE: a. Increase cutting speed b. Increase width of cut c. Decrease rake angle. 22. In oblique cutting the chip moves to where as in orthogonal cutting the chip moves. 23. In the figure below (They are the top view for what you do on the lathe in NC 145), answer the followings: Is the right figure an oblique cutting? Yes or No. Are both figure orthogonal cutting? Yes or No. la=ap 24. The crater (crater wear) occurs in: b. Flank face b. Rake face c. Side face 25. To avoid chatter and vibration: a. Change feed b. Change speed c. Increase stiffness d. all of them 26. Increase in tool inserts corner angles increases / decreases strength of tool. Circle one. 27. Decrease in tool inserts comer angles increases/decreases chipping and accessibility of tool. Circle one. 28. Lubrication reduces chatter? Yes or No.