Question

additive manufacturing and filament
in what situation would you use a grid or linear pattern infill?
general use and everyday type of prints
for a flexible print
a print needed for industrial use
neither grid nor colinear is a type of infill pattern

Explanation:

Grid or linear infill patterns are commonly used for general - use and everyday 3D prints as they offer a good balance between strength, print time, and material usage. Flexible prints usually require different infill patterns for flexibility, industrial prints may need more specialized and stronger infill patterns, and grid and linear are indeed infill patterns.

Answer:

General use and Everyday type of prints