Module 1 Flashcards
a push or pull exerted on an object to change its position or direction of movement
Force
a downward force that results from the gravitational pull on an object
Weight
the amount of matter in an object
Mass
a measure of the density of a liquid
Specific gravity
the amount of force exerted on an object divided by the area over which the force is exerted
Pressure
the result of a body being moved through a distance by force
Work
the amount of work done in a given amount of time
Power
The fluid in a fluid power system can be either a(n) _____ or a(n) _____.
Liquid; Gas
A push or pull applied against an object to move it is called a(n) _____.
Force
Gravitational force gives an object _____.
Weight
The density of a liquid is expressed in terms of _____.
Specific Gravity
The specific gravity of a liquid is determined by comparing the weight of the fluid to the weight of an equal volume of _____ at the same temperature.
Water
The amount of work done when an object is moved through a distance by a force is expressed in units of _____.
Foot-Pounds
The amount of work done in a given period of time is called _____.
Power
Name the four types of energy produced in a hydraulic system.
Hydraulic, Kinetic, Potential, Heat
The rapid intermingling of molecules of one gas or liquid with another is called.
Diffusion
Pascal’s Law states that when pressure is exerted on a confined liquid, the pressure is transmitted _____ in all directions throughout the liquid.
Equally
Force can be increased or decreased in a hydraulic system by means of hydraulic _____.
Leverage
If two pistons have a force ratio of 4 to 1, the amount of movement of piston 2 is _____ the movement of piston 1.
1/4
The ideal fluid flow in a hydraulic power system is called _____ flow.
Laminar
Turbulent flow wastes power by generating excess _____ in the fluid.
Heat
In a hydraulic power system, fluid flow is directed by a(n) _____.
Control Valve
The component used to maintain system pressure in a hydraulic system is the _____.
Pressure-Regulating Valve
