Hydraulics

Hydraulic fluid contamination is defines as

• Dirt, Sand, and or sealant

• Water

• All the answers are correct

• Oxidation

Identify a hydraulic fluid that has EXCELLENT heat transfer and EXCELLENT lubricity.

• ATF

• Ethylene Glycol

• Motor Oil

• Vegetable Oil

Tags

NGSS.MS-ETS1-2

What are the requirements of a hydrauic fluid?

• Transfer power, Seal, Lubricate, Cool

• Store energy, Inhibit corrosion, Reduce friction, Dissipate heat

• Transmit force, Resist oxidation, Minimize wear, Absorb heat

• Transmit power, Resist wear, Reduce heat, Seal

The updated ISO code 4406 requires that samples to be tested to

• 4µ 6µ 14µ

• 2µ 8µ 12µ

• 3µ 5µ 15µ

• 5µ 7µ 13µ

What are the general types of hydraulic fluids?

• Petrolium based, Fire resistant, Biodegradeable

• Vegetable oil, Mineral oil, Synthetic oil

• Water, Ethanol, Methanol

• Lubricants, Greases, Oils

State two types of lubricating films that exist between moving surfaces:

• Full Film, Boundary Lubrication

• Grease, Oil

• Solid, Liquid

• Friction, Wear

Contamination accounts for what percentage of the system failures?

• 80%

• 50%

• 90%

• 70%

Tags

NGSS.MS-PS1-2

What are the 3 primary types of fluid conductors?

• Piping, Tubing, Hoses

• Valves, Motors, Fittings

• Motors, Gears, Pumps

• Cables, Wires, Connectors

Doubleing the diameter of a conductor does to the area:

• Quadruples it

• Halves it

• Increases it

• Decreases it

A pipe's schedule number indicates what characteristic?

• Wall thickness

• Length

• Diameter

• Pressure rating