Manufacturing Engineering

Question 1

1The most common material for desktop 3D printers is

Easy

A. concrete B. PLA plastic filament C. steel sheets D. glass

Question 2

2Rapid prototyping is used to

Easy

A. mass-produce cars B. recycle waste C. quickly make physical models from CAD data D. mine ores

Question 3

3Stereolithography (SLA) 3D printing builds parts by

Easy

A. melting plastic filament B. cutting metal blocks C. curing liquid resin layer by layer with a UV laser D. casting molten iron

Question 4

4Slicing software

Easy

A. edits photos B. converts a 3D model into layers and printer instructions C. manages emails D. cuts metal

Question 5

5The file format commonly used to send 3D models to printers is

Easy

A. PNG B. STL C. MP3 D. DOCX

Question 6

6An advantage of rapid prototyping is that it

Easy

A. produces thousands of parts cheaply B. requires no computer C. needs no design D. reduces the time and cost of testing designs

Question 7

7Laser sintering builds parts by

Medium

A. bending sheets B. pouring metal C. fusing powder layer by layer with a laser D. cutting wood

Question 8

8Rapid prototyping mainly helps manufacturers to

Easy

A. mass-produce at the lowest cost B. test designs quickly before investing in tooling C. replace all workers D. avoid design