CROSS CONNECTION CONTROL:
VOCABULARY & TERMS I,
CONTINUED...CROSS CONNECTION
CONTROL: VOCABULARY & TERMS 2
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
Cross Connection Control...Vocabulary 1... -ANSWER✔✔
What is atmospheric pressure?
Answer: Atmospheric pressure is the force exerted by the atmosphere on objects
located within it. The greater the pressure, the stronger the force, which means the
atmosphere pushes harder against objects, plants, animals, and the Earth's surface.
Why does the atmosphere exert pressure?
Answer: Everything around you is made up of tiny particles called molecules.
Unlike solids and liquids, gas molecules, such as those in our atmosphere, are not
bound together. They move freely, bumping into each other and objects, which
creates pressure.
Continued... why does the atmosphere exert pressure?
Answer: As the molecules in the atmosphere move around and bump into objects
(including your body), they compress and generate pressure, which we experience
as atmospheric pressure.
Continued...why does the atmosphere exert pressure?...C...of A, B, C, D, E & F?
From what direction is pressure coming from? -
ANSWER✔✔...And...continued...atmospheric pressure...C...of A, B, C, D, E &
F...direction of pressure...This pressure is omnidirectional, meaning that it is not
, only exerted from above, but also from beneath, from the sides, and from every
direction at once. And...
Continued...why does the atmosphere exert pressure...D...of A, B, C, D, E & F?
How is atmospheric pressure quantified and measured? -
ANSWER✔✔...And...continued...atmospheric pressure...quantification...D...of A,
B, C, D, E & F...At sea level, the amount of pressure exerted by our atmosphere is
about 14.7 pounds per square inch...meaning an object will have 14.7 pounds of
pressure pushing against every square inch of the object.
Continued...why does the atmosphere exert pressure...E...of A, B, C, D, E & F?
How come atmospheric pressure goes unnoticed by us...1 of 2? -
ANSWER✔✔...And...continued...atmospheric pressure...why not noticed...1 of
2...E...of A, B, C, D, E & F...Yet, as we move around in the atmosphere, we are
unaware of this pressure. We do not feel it because our bodies are made up of
gases that are at the same pressure. And...
Continued...why does the atmosphere exert pressure...F...of A, B, C, D, E & F?
How come atmospheric pressure goes unnoticed by us...2 of 2? -
ANSWER✔✔...And...continued...atmospheric pressure...why not noticed...2 of
2...F...of A, B, C, D, E & F...In other words, the gases within our bodies actually
push back outward at the same pressure.
1.1 Absolute Pressure -ANSWER✔✔Pressure measured on a scale where a perfect
vacuum is zero. Absolute pressure is the sum of gauge pressure and atmospheric
pressure.
1.2 Accessible -ANSWER✔✔Capable of being reached for testing and
maintenance, when referring to a backflow prevention assembly. However, it first
may require the removal of an access panel, door or similar obstruction. Also see
1.54, READILY ACCESSIBLE.
VOCABULARY & TERMS I,
CONTINUED...CROSS CONNECTION
CONTROL: VOCABULARY & TERMS 2
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
Cross Connection Control...Vocabulary 1... -ANSWER✔✔
What is atmospheric pressure?
Answer: Atmospheric pressure is the force exerted by the atmosphere on objects
located within it. The greater the pressure, the stronger the force, which means the
atmosphere pushes harder against objects, plants, animals, and the Earth's surface.
Why does the atmosphere exert pressure?
Answer: Everything around you is made up of tiny particles called molecules.
Unlike solids and liquids, gas molecules, such as those in our atmosphere, are not
bound together. They move freely, bumping into each other and objects, which
creates pressure.
Continued... why does the atmosphere exert pressure?
Answer: As the molecules in the atmosphere move around and bump into objects
(including your body), they compress and generate pressure, which we experience
as atmospheric pressure.
Continued...why does the atmosphere exert pressure?...C...of A, B, C, D, E & F?
From what direction is pressure coming from? -
ANSWER✔✔...And...continued...atmospheric pressure...C...of A, B, C, D, E &
F...direction of pressure...This pressure is omnidirectional, meaning that it is not
, only exerted from above, but also from beneath, from the sides, and from every
direction at once. And...
Continued...why does the atmosphere exert pressure...D...of A, B, C, D, E & F?
How is atmospheric pressure quantified and measured? -
ANSWER✔✔...And...continued...atmospheric pressure...quantification...D...of A,
B, C, D, E & F...At sea level, the amount of pressure exerted by our atmosphere is
about 14.7 pounds per square inch...meaning an object will have 14.7 pounds of
pressure pushing against every square inch of the object.
Continued...why does the atmosphere exert pressure...E...of A, B, C, D, E & F?
How come atmospheric pressure goes unnoticed by us...1 of 2? -
ANSWER✔✔...And...continued...atmospheric pressure...why not noticed...1 of
2...E...of A, B, C, D, E & F...Yet, as we move around in the atmosphere, we are
unaware of this pressure. We do not feel it because our bodies are made up of
gases that are at the same pressure. And...
Continued...why does the atmosphere exert pressure...F...of A, B, C, D, E & F?
How come atmospheric pressure goes unnoticed by us...2 of 2? -
ANSWER✔✔...And...continued...atmospheric pressure...why not noticed...2 of
2...F...of A, B, C, D, E & F...In other words, the gases within our bodies actually
push back outward at the same pressure.
1.1 Absolute Pressure -ANSWER✔✔Pressure measured on a scale where a perfect
vacuum is zero. Absolute pressure is the sum of gauge pressure and atmospheric
pressure.
1.2 Accessible -ANSWER✔✔Capable of being reached for testing and
maintenance, when referring to a backflow prevention assembly. However, it first
may require the removal of an access panel, door or similar obstruction. Also see
1.54, READILY ACCESSIBLE.
