5. Contamination Control- Contaminants

Separate the contaminants by type.

Groups:

(a) Particulate

,

(b) Chemical

• Water

• Metals

• Heat

• Air

• Paint Chips

• Cross Contamination

• Fibers

• Dirt

Out of the seven types of wear, which type is the most common?

• Adhesive

• Abrasive

• Corrosion

• Contact Stress

Answer explanation

On the Mohs scale for hardness, where does aluminum oxide (sandpaper) rate?

• 1

• 3

• 7

• 9

Answer explanation

Does the pH become more Acidic or Basic when water is introduced to oil?

• Acidic

• Basic

Answer explanation

When water is introduced, the pH becomes more Acidic when added to oil

When oil is stored, the oxidation rate doubles if the heat is increased by 18°F. How much of the oil's useable life is consumed?

• 1/2

• 1/3

• 1/4

• Doubles

Answer explanation

Increasing the temperature 18°F cuts the useable life of oil in 1/2

What is the smallest micron that can be seen with the human eye?

• 10 micron

• 25 micron

• 40 micron

• 80 micron

Answer explanation

40 MICRONS