Static Pressure Basics Quiz

What is the primary unit of measurement for static pressure in the HVAC industry?

• Bar

• Pascal

• PSI

• Inches of water column

What type of manometer is necessary for measuring very small amounts of pressure in the pascal range?

• Single port manometer

• Precision manometer

• Dual port manometer

• Utility manometer

What is the purpose of zeroing out a manometer before taking a pressure measurement?

• To compare the measurement to atmospheric pressure

• To calculate the velocity pressure

• To ensure an accurate baseline for the measurement

• To measure the force of directional airflow

What is the main difference between a pitot tube and a static pressure probe?

• A pitot tube measures velocity pressure, while a static pressure probe measures static pressure

• A pitot tube measures static pressure, while a static pressure probe measures velocity pressure

• A pitot tube measures directional airflow, while a static pressure probe measures balloon pressure

• A pitot tube measures balloon pressure, while a static pressure probe measures directional airflow

In which scale do we measure static pressure when working with an air conditioner?

• Inches of water column

• PSI

• Pascal

• Bar

Where should the static pressure probe be inserted when measuring static pressure in an air conditioner?

• It doesn't matter

• Sideways to the flow of air

• Pointing against the flow of air

• Pointing with the flow of air

What is the purpose of a pitot tube in the HVAC industry?

• To measure atmospheric pressure

• To measure directional airflow

• To measure velocity pressure

• To measure static pressure

What is the effect of positive static pressure in a room?

• It forces air into the room from somewhere else

• It forces air out of the room

• It creates a negative pressure in the room

• It has no effect on the room

What is the effect of negative static pressure in a room?

• It has no effect on the room

• It creates a positive pressure in the room

• It forces air into the room from somewhere else

• It forces air out of the room

Where should the static pressure probe be positioned in relation to the blower in an HVAC system?

• On the return side before the blower

• On the supply side past the blower

• On the return side after the blower

• On the supply side before the blower