NIMS 44-65

Malleable and Ductile cast irons are

• Brittle

• Soft

• Able to flex and stretch before breaking

• Not able to flex or stretch compared to Gray cast iron

What happens when a light field is broken while using a photoelectric presence sensing during milling operations.

• An alarm will sound

• The machine works since no one is present

• The machine stops and will not cycle or run

• Strobe light begins to flash

Titanium metals....

• Are very strong, very lightweight, and very expensive

• Are selected for critical applications for their strength to weight ratio

• Are used in human implants as well for aerospace applications

• All the above

• None of the above

A sampling of parts is the number of

• rejects found in the lot

• random parts to inspect

• parts in a lot

• parts checked by the operator

In SPC, range refers to the....

• number of parts in a sample

• upper control limit

• difference between dimensions in a sample

• number of parts between samples

Which of the following steels has the highest carbon content?

• 8615

• 1090

• 4140

• 1008

When is it ok for you to operate a machine..

• After breakfast

• When a job or assignment needs to be completed

• After you have been trained and checked out on that specific machine

• Anytime you need to use it

Before mounting a new chuck on a lathe, the taper/spindle should be checked________

• for dirt or metal chips

• for spindle jaw wear

• for the correct spindle speed

• for alignment

When lifting heavy objects, which of the following should be done? Check all that apply

• Eyes should be focused straight ahead

• Feet should be kept at shoulders width apart

• Knees should be locked

• The back should be kept as straight as possible

An unknown metal is found. A magnet sticks to the sample. The material is

• Non-ferrous

• Ferrous

• Aluminum

• Titanium