md elements 901

Metal that assists lubrication or lubricant in itself.

• Zinc

• Antimony

• Babbitt

• Lead

The smallest area at a point of rupture of a tensile specimen divided by the original area is called:

• Percentage elongation

• Izod test

• Charpy test

• Percentage reduction of the area

Steel containing large amounts of mild nickel and chromium.

• Carbon steel

• Stainless steel

• Alloy steel

• Cast steel

Major component of bronze casting is:

• Copper

• Zinc

• Manganese

• Lead

How is "eleven - sixteenths" of an inch expressed in decimal?

• 0.6785

• 0.6875

• 0.7685

• 0.6578

Which of the following is described as the "safe edge" of the file?

• The end opposite the handle

• The edge with no teeth

• The one with the handle

• None of these

Alloy steel known for its resistance to corrosion, abrasion and wear that is usually ideal for mill grinding of ore in cement and concentrator application. It is usually combined with molybdenum to increase the depth hardening.

• Manganese chromium steel

• Chromium - moly steel

• Chromiur - nickel - moly steel

• Manganese - moly steel

Most effective alloying element for reducing brittleness of steel at very low temperature.

• Manganese

• Silicon

• Molybdenum

• Nickel

How do you call a small piece of metal clogged between the teeth on a file?

• Clogs

• Flats

• Bumps

• Pins

The product of finshing off a plece of metal with a real smooth finish

• Draw-filling

• Mill-filling

• side-filling

• Flat-filling