Hydraulic Calculations Challenge
Puzzles and Games
Hydraulic Calculations Challenge
Test your hydraulic knowledge! Solve each challenge and calculate the correct answer. Answers are provided at the end.
Challenge 1: Pressure Drop
A hydraulic system starts at 3,400 PSI.
At the cylinder, the pressure reads 3,050 PSI.
Question: How much pressure was lost?
Challenge 2: More Pressure
Machine A operates at 2,800 PSI.
Machine B operates at 3,500 PSI.
Question: How many more PSI does Machine B have than Machine A?
Challenge 3: Total Hydraulic Flow
Three pumps are working together.
- Pump A: 20 GPM
- Pump B: 35 GPM
- Pump C: 25 GPM
Question: What is the total flow rate?
Challenge 4: Added Pressure
A machine is operating at 2,900 PSI.
The operator increases system pressure by 300 PSI.
Question: What is the new operating pressure?
Challenge 5: Hydraulic Oil
A hydraulic reservoir holds 60 gallons of oil.
It currently contains 17 gallons.
Question: How many gallons are needed to fill the reservoir?
Challenge 6: Hose Length
A technician replaces two hydraulic hoses.
- Hose 1: 8 feet
- Hose 2: 12 feet
Question: What is the total hose length installed?
Challenge 7: Pump Output
A pump delivers 40 GPM.
A hydraulic attachment requires 28 GPM.
Question: How many GPM remain available?
Challenge 8: Daily Operating Time
An excavator runs its hydraulic system:
- 5 hours in the morning
- 3 hours in the afternoon
Question: How many total hours did the hydraulic system operate?
Bonus Challenge: Hydraulic Power
A machine operates at:
- 2,000 PSI
- 25 GPM
Use the formula:
Hydraulic HP = (PSI × GPM) ÷ 1714
Question: Approximately how many hydraulic horsepower is the machine producing?
