Quiz on Chapter 2: Hydraulic Fluids

1. Hydraulic oil is compressible:

1. not at all
2. by a great amount
3. by a small amount

2. Viscosity is a measure of the hydraulic fluids:

1. color
2. temperature
3. thickness

3. Synthetic fluids:

1. cost more than mineral based fluids
2. will not burn
3. are compatible with most seal materials

4. The main purpose for hydraulic fluids is:

1. to fill the tank
2. to leak from every opening
3. transmit energy, lubricate and seal

5. Over heating hydraulic fluid:

1. makes it last longer
2. deteriorates the additives
3. makes it smell better

6. New hydraulic oil is clean to:

1. 5 microns
2. 10 microns
3. 25 microns

7. Viscosity Index is a measurement of the change of flow characteristics of a fluid from one temperature another.

1. True
2. False

8. Hydraulic fluid should be stored:

1. in a damp moist atmosphere
2. in a closed and sealed container
3. in an open container

9. A high viscosity number gives:

1. better sealing characteristics
2. poorer sealing characteristics
3. has no effect on sealing characteristics

10. Refined mineral oil has:

1. excellent lubricating qualities
2. good lubricating qualities
3. poor lubricating qualities

Notes: