Pumping Apparatus Driver/Operator Chapter 5

What is the weight of ordinary fresh water for fire protection purposes?

What happens to the volume of water when converted to steam at 212°F?

Why is water considered an excellent extinguishing agent?

How does the surface area of water affect its heat absorption?

What is a disadvantage of water in firefighting due to its physical property?

How can water's reactivity with certain substances hinder firefighting efforts?

In what way does water's conductivity impact firefighting efforts?

What is force a simple measure of?

What determines the speed of a fluid traveling through a hose or pipe?

According to the 6 principles of pressure, what happens to fluid pressure at a point in fluid at rest?

What is the relationship between the pressure of a liquid in an open vessel and its depth?

How is pressure applied to a confined fluid transmitted?

What is the standard atmospheric pressure at sea level?

What is the term for any pressure less than atmospheric pressure?

What does 'head' refer to in the fire service?

How is head pressure in psi calculated from head in feet?

What is the position of an object in relation to sea level called?

What is the term for pressure losses or gains due to gravity?

What happens to atmospheric pressure above 2000 feet in relation to firefighting pumpers?

What is the forward velocity pressure when water is flowing from a discharge opening?

How much does atmospheric pressure fluctuate above sea level for every 1,000 feet?

What is a cause of friction loss in hoses?

What does friction loss vary directly with, if all other conditions are the same?

How does friction loss vary when the flow remains constant and the diameter of the hose is increased?

For a given velocity, what happens to friction loss regardless of the pressure on water?

What determines the velocity for a given volume of water flowing through a hose?

What is required to shape the stream of an open fire hose for firefighting purposes?

What are some characteristics of a hose layout that affect friction loss?

What is the purpose of partially closing master streams or hydrants before completely closing them?

In a gravity system, where is the primary water source located in relation to the distribution system?

What type of system uses one or more pumps to take water from the primary source and discharge it through filtration and treatment processes?

What type of system most commonly utilizes both direct pumping and gravity systems with elevated tanks providing gravity flow?

What is the term for a hydrant that receives water from only one direction?

What does a grid system for water distribution consist of?

What are the components of a grid system's primary feeders?

What is the main function of a valve in a water distribution system?

Which type of valve has a yoke on the outside with a threaded stem that controls the gate's opening or closing?

What type of valves are generally gate valves used as control valves in a public water distribution system?

What type of valve has a hollow metal post attached to the valve housing with a threaded valve stem inside?

What is the max total amount of water that was used during any 24-hour interval within a 3 year period called?

What restricts the interconnection of potable and nonpotable water systems?

What materials are commonly used for underground water pipes?

What is the term for the maximum amount of water used in any 1-hour interval over the course of a day?

What contributes to increased friction loss in underground water pipes?