Laws and Principles of Hydraulics

Refer to Figure. Calculate the distance travelled by piston B.

• 0.032m

• 0.050m

• 0.600m

• 0.800m

What is used as a transmission medium in a hydraulic system?

• Air

• Oil

• Steam

• Water

Pressure is defined as the total amount of

• force per unit area

• power per unit area

• weight per unit area

• work done per unit area

A pressure of 1 Bar is equivalent to

• 100 N/m²

• 1 000 N/m²

• 10 000 N/m²

• 100 000 N/m²

Which one of the following is NOT a unit of pressure?

• Bar

• N/m²

• Nm/s

• Pascal

Refer to Fig. Calculate the system pressure.

• 20 N/m²

• 100 N/m²

• 500 N/m²

• 2 500 N/m²

The SI unit of pressure is

• Bar

• Kgf/cm²

• PSI

• N/m²

Refer to Figure. The maximum load that can be lifted at B is

• 125 N

• 400N

• 500N

• 625N

If a force of 50N is applied at a piston A which is 10 times smaller than the area of piston B, how many times the load of A can be lifted at B?

• 1/5 times

• 2 times

• 5 times

• 10 times

1. Which one of the following diagrams shows a highest pressure is being produced?

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