NIMS 20-43

Long thin parts have been ground and the flatness is out of tolerance. A possible cause is:

• Machine foundation is inadequate.

• The grinding wheel is too hard.

• Cuts are too light.

• Excessive coolant was used.

Which of the following is a possible remedy to remove material (solids) lodged in the eye?

• Pull the top lid over the bottom lashes

• Rub the eye from left to right

• Pull at the corner of the eye

• To seek assistance to remove the material

The process plan calls for a slot .500” + .000” - .002” wide by 1/8 deep to be milled on a vertical milling machine. The proper process to mill the slot is __________.

• One roughing pass using a 3/8” dia. end mill and one finish pass using a ½” dia. cutter

• A single-pass using a .500 dia. end mill

• Two passed using a 3/8” dia. end mill

• Three passes using a 3/8” dia. end mill

If a process calls for tapping ½” – 13 NC hole using a 27/64 drill size, what percentage of thread will be obtained?

• 70% thread

• 75% thread

• 80% thread

• 60% thread

A process calls for a slip or sliding fit for a 1.000” dia. shaft to fit into a hole. The clearance between the shaft and the hole should be _______________.

• .0009

• .0150

• .0001

• .0150

To select the correct type of measuring tools to inspect a part, the first items to review is what.

• tolerances of the dimensions you are inspecting

• What type of material your using

• What machine you are using

• How long does it take to cut the part?

What metals are a classified metal that does not have Iron as its basic ingredient?

• Non-ferrous

• Ferrous

• Recycled

• Raw material

Which description is most likely Hot Rolled Steel?

• The bar has a Black oxide coating; easy to file; and throws a light yellow/straw colored spark when contact is made with a grinding wheel.

• The bar has a smooth gray somewhat shiny surface; easy to file; and throws a light yellow/straw colored spark when contact is made with a grinding wheel.

• The bar is a yellow color; very easy to file; and non-magnetic when tested with a magnet.

• The bar has a black rough surface; dusty chip when filed; and orange short spark when ground.

On a hazardous material identification guide, the degree of hazard is measured by a numbering system. What number is the most hazardous?

• 1

• 2

• 3

• 4

A dial bore gage is used to inspect _______________.

• Surface finish

• Tapered holes

• Slots

• Holes