Hydraulics Quiz

What is the purpose of a Suction Strainer in a hydraulic system?

• To protect downstream components from pump wear

• To remove contamination from the reservoir fluid before it reaches the pump

• To catch wear debris from components before it enters the reservoir

• To clean the fluid in the reservoir independently of the main hydraulic system

What is the main disadvantage of a Pressure Filter in a hydraulic system?

• Specific component protection

• Does not catch wear debris from downstream working components

• Housing is relatively expensive because it must handle full system pressure

• Contributes to overall system cleanliness

What does the Beta Ratio Efficiency of a filter element indicate?

• 10%

• 99.90%

• 50.00%

• 80.00%

What is the main cause of Fatigue Wear in hydraulic systems?

• Erosion due to fluid flow

• Hard particles causing cracks to expand

• Abrasive particles caught between two surfaces

• Dirt accumulation in the system

What is the recommended action to take if a hydraulic system has contaminated oil?

• Install pressure gauge and adjust to correct pressure

• Tighten leaking connections; fill reservoir to proper level

• Replace dirty filters; wash strainers in solvent compatible with system fluid

• Align unit and check condition of seals, bearings and coupling

What is the main function of an Off-Line Filter in a hydraulic system?

• Catches wear debris from components before it enters the reservoir

• Protects downstream components from pump wear

• Operates independently of the main hydraulic system cleaning the fluid in the reservoir only

• Removes contamination generated or ingested by the pump and components

What is the effect of silting in hydraulic systems?

• Fatigue wear

• Erosive wear

• Abrasive wear

• Stiction, binding and poor response

What is the recommended action to take if a hydraulic system has poor fluid filtration?

• Align unit and check condition of seals, bearings and coupling

• Tighten leaking connections; fill reservoir to proper level

• Replace dirty filters; wash strainers in solvent compatible with system fluid

• Install pressure gauge and adjust to correct pressure

What is the main cause of Erosive Wear in hydraulic systems?

• Hard particles causing cracks to expand

• Abrasive particles caught between two surfaces

• Dirt accumulation in the system

• Erosion due to fluid flow

What is the purpose of a Return Line Filter in a hydraulic system?

• To protect downstream components from pump wear

• To remove contamination generated or ingested by the pump and components

• To catch wear debris from components before it enters the reservoir

• To remove contamination from the reservoir fluid before it reaches the pump