Study guides, Class notes & Summaries

EMAE 160 Welding Questions with Complete Solutions

What is the purpose of a flat washer? Correct Answer-To distribute the pressure of the nut/bolt evenly over the part being secured, reducing the chance of damage, and to provide a smooth surface for the nut/bolt to bear on, making it less likely to loosen as a result of an uneven fastening surface. (A flat washer sits between a bolt and joint material (not bonded) and allows for optimum load distribution.) Why do we coat metals? Correct Answer-to provide corrosion protection, provide a speci...

What is the formula for RPM? Correct Answer-(cutting speed*12)/piD What is the formula for feed rate? Correct Answer-RPM * chip load * number of teeth Describe broaching and provide an example of its application. Correct Answer-A broach is a cutting tool with teeth increasing in size going from rough to fine cutting. Cutting a rectangular key slot A cutting edge that can hold up under high temperatures experienced at the chip-tool interface possesses a quality called what? Correct Answe...

List three differences between thermoset plastics and thermoplastics. Correct Answer-Thermoplastics are solids that become malleable when heat above a certain temperature. Thermosets are not malleable once hardened. Thermosets are stronger than thermoplastics, but thermosets are also more brittle. Structure of polymer: linear linked vs. cross linked Pultrusion is most similar to which of the following plastic shaping processes? Correct Answer-Extrusion Which of the three polymer types does...

What is the formula for RPM? Correct Answer-(cutting speed*12)/piD What is the formula for feed rate? Correct Answer-RPM * chip load * number of teeth Describe broaching and provide an example of its application. Correct Answer-A broach is a cutting tool with teeth increasing in size going from rough to fine cutting. Cutting a rectangular key slot A cutting edge that can hold up under high temperatures experienced at the chip-tool interface possesses a quality called what? Correct Answe...

Given the following parameters, find the appropriate RPM and feed rate in inches/minute. Cutting Speed: 150 SFM Tool Diameter: 0.875" End Mill Chip per Tooth: 0.002" Number of Flutes: 4 Correct Answer-RPM: (150 * 12)/(π * 0.875) = 655 RPM Feed Rate: 655 * 4 * 0.002" = 5.24 ipm Describe broaching and provide an example of its application. Correct Answer-Broaching is a process in which a tool, called a broach, is forced through a machinable hole in order to take out material in an othe...

Resistance welding processes make use of the heat generated by electrical resistance to achieve fusion of the parts to be joined; no pressure is used. T/F? Correct Answer-False. Welding failures always occur in the fusion zone of the weld joint, since this is the part of the joint that has been melted. T/F? Why? Correct Answer-FALSE. Failures also occur in the HAZ. Roughening of mating surfaces prior to gluing tends to: Correct Answer-Increase the strength of an adhesive joint Which arc...

EMAE 160 Questions with Complete Solution1

EMAE 160 Questions with Complete Solutions.

EMAE 160 RVW 5 Questions with Complete Solutions