Production Engineering MCQ with Answers

176) The example of snag grinding is

Answer is:

all of these

Explanation:

The example of snag grinding is
* trimming the surface left by sprues and risers on castings
* grinding the parting line left on castings
* removing flash on forgings

177) The method of grinding used to produce a straight or tapered surface on a work piece, is

Answer is:

external cylindrical grinding

178) the method of grinding used to produce internal cylindrical holes and tapers, is

Answer is:

internal cylindrical grinding

179) Surface grinding is done to produce

Answer is:

flat surface

Explanation:

Surface grinding is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.

180) In transverse grinding

the work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face

the work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face

the work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face

the work rotates in a fixed positions as the wheel feeds to produce cylinders longer than the width of wheel face

Answer is: