Use And Understand The Principles Of Fluid Dynamics Flashcards
What are two types of fluids?
Liquid and gaseous.
What is meant by the density of a fluid?
The mass-per-unit volume of the fluid.
What is meant by the specific gravity of a fluid?
The ratio of the density of the fluid to the density of pure water
What effect does the increase in temperature of a confined gas have on its pressure?
When the volume of a gas remains constant, an increase in its temperature increases its pressure.
What effect does an increase in the volume of a gas have on its temperature if its pressure remains constant?
As the volume of a gas increases with a constant pressure, the temperature decreases.
What effect does an increase in the pressure of a confined gas have on its temperature?
Increasing the pressure of a confined gas increases its temperature.
What is the difference in the fluids used in a hydraulic system and those used in a pneumatic system?
Fluid used in a hydraulic system is incompressible. Fluid used in a pneumatic system is compressible.
What effect does an increase in density altitude have on engine performance?
As density altitude increases, air density and engine performance decreases.
What effect does high humidity have on piston engine performance?
Water vapor is less dense than dry air and thus high humidity decreases the density of the air. The less dense air decreases engine performance.
What does the specific gravity of the electrolyte of a lead-acid battery indicate?
The amount of acid relative to the water in the electrolyte. This is an indication of the state of change of the battery
How much force is produced by 1,000 psi of hydraulic pressure acting on a piston with an area of 20 square inches?
20,000 pounds.
How many cubic inches of fluid is forced out of a cylinder by a piston with an area of 20 square inches?
100 cubic inches
What will happen to the pressure of a confined gas if the temperature of the gas is increased?
The pressure will increase
