Hydraulic Systems Concepts and Applications

This video tutorial explains hydraulic cylinders, focusing on their specifications, such as bore size, rod size, and stroke. It covers how to calculate load lifting capacity and the role of pressure in hydraulic systems. The tutorial also discusses the behavior of cylinders piped in parallel and series, highlighting differences in synchronization and speed.

What does the term 'bore size' refer to in hydraulic cylinders?

• The outside diameter of the cylinder

• The thickness of the cylinder walls

• The length of the cylinder

• The inside diameter of the cylinder

In a hydraulic system, what determines the pressure in the line leaving the cylinder?

• The weight being lifted

• The speed of the pump

• Downstream restrictions

• The size of the cylinder

How is the area of a piston calculated in hydraulic systems?

• By measuring the circumference

• Using the formula 2 Pi r

• By multiplying the diameter by the stroke

• Using the formula Pi D^2 over 4

What happens to the lifting capacity if there is a 200 PSI pressure restriction in the line?

• It doubles

• It increases by 200 lbs

• It remains the same

• It decreases by 600 lbs

In a parallel piped hydraulic system, which cylinder will extend first?

• The one with the longer stroke

• Both will extend simultaneously

• The one with the smaller load

• The one with the larger load

What is the pressure in a series piped hydraulic system when there is no load?

• 1,000 PSI

• 500 PSI

• Zero PSI

• Varies with the pump speed

How does the speed of cylinders in series compare when the load is on the left side?

• The right cylinder moves faster

• The left cylinder moves faster

• Both move at the same speed

• The speed depends on the load size

What is the effect of the rod taking up space in a cylinder on the fluid flow?

• Doubles the fluid flow

• Increases the fluid flow

• Decreases the fluid flow

• Has no effect on fluid flow

What happens to the pressure when the load is on the right side in a series piped system?

• Pressure decreases to zero

• Pressure is irrelevant

• 1,000 PSI is needed to overcome the load

• 750 PSI is needed to overcome the load

What is the ratio of the area on the bottom of the piston to the top in the given example?

• 4 to 5

• 3 to 4

• 1 to 2

• 2 to 3