1.2

Explain the application of Pascal's Law to engineering systems

and carry out associated calculations

Consider the following hydraulic system:

P₁

Piston

Fluid Mechanics Level 5

P₁-P₂

P₂

1. Explain Pascal's Law and use it to explain what effect increasing

the pressure at point 1 has on point 2 in the hydraulic system.

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2. A car repair shop uses a lift to raise a 160kg engine. The lift has

a large piston with a diameter of 24cm. To raise the lift, force is

exerted on a small piston with a diameter of 8cm. What force

must be exerted to raise the lift?

3. What is the mechanical advantage of the hydraulic system?

4. The smaller piston is pushed down by 1.5m, how much does this

raise the larger piston?