Answer the following: Part A: Reaming is used for which of the following functions (three correct answers): (a) accurately locate a hole position (b) enlarge a drilled hole (c) improve surface finish on a hole (d) provide an internal thread (e) improve tolerance on hole diameter (f) all the above Part B: Which of the following statements is applicable to superheating (a) Increased superheating improves surface finish (b) Increased superheating helps to promote mold filling (c) Increased amount of superheating increases total cost (d) Represents the extra heat above the liquidus temperature in the melt (e) All of the above (f) None of the above

The strength in the weld zone of an age-hardening aluminium alloy is often higher than in the heat affect zone (HAZ). Which of the following is NOT a reason for this? O The maximum temperature is higher in the weld pushing more of the hardening phase into solution. O Particles that don't dissolve might transform into equilibrium phases instead. This is more likely in the HAZ. O The greater dissolution of particles in the weld leads to greater solid solution strengthening. O The increase in solute in the matrix allows more subsequent natural aging to occur in the weld zone. O Particles in the HAZ tend to dissolve, while those in the weld coarsen. The increase in particle size and spacing reduces the strength of HAZ.

I am going to use a Bolt through the .41 DIA holes to align the parts, answer the following:What is the Bolt size (don't worry about the tolerances)?Dim's C=.75, B=2.50, apply a +/-.01 tol to all affected dim's except the .50+/-.03 dim, how far does EDGE D stick out above EDGE E (figure it off the centerline, don't worry abou the clearance between the bolt and the holes)?Min = ?  Max= ?

Need questions 13, 14, 15 explained and answered please.