Engineering Problem Archive
Curated engineering exercises and micro-problems, each linked to a practical ZAR calculator.
Vertical Tank Volume
A vertical cylindrical tank has a diameter of 4.2 m and a usable height of 5.5 m. Estimate its maximum volume in litres.
Solve →Pipe Flow Velocity
Water flows at 85 m³/h through a DN125 (0.125 m) pipe. Estimate the flow velocity in m/s.
Solve →Pump Total Head
A pump lifts water 12 m vertically with an estimated 6 m of friction and fitting losses. Estimate the total dynamic head.
Solve →Chemical Dosing
A system flows at 50 m³/h and requires a 2 mg/L chlorine dose from a 10% sodium hypochlorite solution. Estimate the dosing rate in L/h.
Solve →Rectangular Tank Volume
A rectangular tank is 3 m × 2 m × 1.5 m. Estimate its volume in m³ and litres.
Solve →These are educational engineering exercises. Each links to a deterministic calculator for solving. Final engineering design must be validated by a qualified professional.