149) You want to fix an irregularly shaped workpiece on a lathe, which one of the following accessories is the most appropriate ?

Three-jaw self-centering chuck

Driving plate

Face plate

Catch plate

Answer is:

Face plate

Explanation:

When fixing irregular shaped work-peice on lathe, face plate in the most suitable accessori.

High speed steel

High carbon steel

Low alloy steel

Cemented carbide

Answer is:

Time between starting and finishing a job

Total time for turning work including regarding of tool

Time between two successive regrinds

Time between starting of metal cutting and tool wear out

Answer is:

Brass

Steel

Plastic

Grey cast iron

Answer is:

trued at the chuck and the work is stationary

trued at the tailstock end when the work is running at slow rpm

trued at both ends and work is stationary

trued at both ends when the work is running at slow rpm

Answer is: