HYDRAULIC AND PNEUMATICS - Quiz

1) Which property in hydraulic oil function is medium for heat transfer?

Shear stability Low volatility Low foaming tendency Good thermal capacity and conductivity

2) Which device is used for handling and removing contamination from hydraulic oil?

Hydraulic filter Actuators Valve Regulator

3) Which part of double acting cylinder prevents air leakage from cylinder to atmosphere?

Piston seal Rod Seal Piston end Rod end

4) What is the defect caused by inter locked air bubbles and pockets in the hydraulic pipe lines and components?

Cavitation Static pressure Vapour Pressure Pressure jerks

5) What is the cause for oil flow under pressure while passing through the restricted passage?

Increase Heat Decrease Heat Decrease volume Increase pressure