Question 33. (1.5 Points) Starting from a moltea state, the solidification proce

Question

Question 33. (1.5 Points) Starting from a moltea state, the solidification procem gralns involves: and the fornation of 1. cooling from a liaid, the stoms frece into an amoephous state 2. grais boundaries form in the melt, then cooling rewults in a grain 3 cooling from liquid, small erystals sucleate, then grains row from there 4. cooling from a+L, grains from froes grain boundaries inward soldering, ion 34. (1.5 Poists) Wlhich is the main the diflermce whee wedling, compared to both bracing o 1. Welding is only peeformed using an electrode arc, whereas brazing and sdering do no 2. When welding the base material melts, it does sot in beasing or soldering 3. The filer material only melts when welding, not ins beasing or soldering 4. None of the above Question 35. (1.5 Points) Using Figure 4, the angle ?-the- Figure 4 Schematic of a cutting tool 1. relief angde 3. draft angle 4 rake angle pared to hot working Queation 38.01.5Psinte) Which of the fdlowing best describes an wlhantage of oold working when com- 1 Better surface Bnish is obtained Less ductility is available eces are reqaired forces are required. ion 37. (15 Poista) Precision is best described as 1. the ability to hit what is aimed at 2 variation of the measuresmest proces J repeatability of the process 4 aoue of the above Spring 2018 Version C write

Explanation / Answer

33) Option 3. Solidification starts with the formation of nucleation.

34. Option 2. In brazing and soldering melting of base metal does not happen

35) Option 3. Angle phi is end cutting edge angle and theta is back take angle

36) Option 1. In hot working scales are formed on surface.

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