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WorksheetsHydraulic Pumps 3rd Session 2022
Total questions: 15
Worksheet time: 8mins
What is the max operating PSI of an external gear pump?
3000 PSI
2000 PSI
1000 PSI
2500 PSI
Why do gear pumps have the most resistance to contamination?
Lowest operating pressure
Lots of moving parts
Low tolerances in pump
Highest operating pressure
Which one is a type of gear pump?
Returnal
Positive camber
Vacuum
External
What is the max operating RPM for a gear pump?
4500 PSI
3000 RPM
2500 RPM
400 RPM
How are Gear pumps similar to chain drives?
High RPM and No Pressure
Mid RPM and Mid Pressure
High RPM and Low Pressure
Low RPM and High Pressure
Max operating pressure on a vane pump is?
10,000psi
5,000psi
2,500psi
1,000psi
Automotive applications of the vane pump include which of the following?
power steering pump
air conditioning pump
automatic transmission pump
all of the above
Which of the following about vane pumps is true?
can be variable displacement
Can be fixed displacement
cannot be pressure compensating
All of the above
What is the main difference between a balanced and unbalanced vane pump?
A balanced has 2 inputs and 2 outputs and an unbalanced one only has 1 of each
A balanced has 1 input and output and an unbalanced has 2 inputs and outputs
There is no difference
How is a vane pump a positive displacement pump?
Minimal internal Leakage
Maximum internal Leakage
Fixed flow rate
Dynamic flow rate
How does a 2 stage piston pump sustain higher pressures?
Decreases flow rates
It uses bigger pistons to feed smaller pistons
It uses smaller pistons to feed bigger ones
It doesn't
What does a piston pump use to sustain flow in one direction?
Pressure
Check Valve
Correct Valve
Pistons
What type of pistons are aligned with the pump shaft?
Axial piston
Radian piston
Lift pump
Force pump
Max operating PSI a piston pump can handle is…
15,000 psi
10,000 psi
2,000 psi
3,000 psi
How do you get a smoother flow in the piston pump?
Lower RPM
Bigger pump
More pistons
Increase RPM
