Airspeed Indicator Questions

Which flight instrument uses both dynamic and static pressures?

• Altimeter

• Vertical speed indicator

• Airspeed indicator

• Attitude indicator

What is static pressure?

• Pressure from air brought to a stop

• Pressure from moving air

• Pressure from still air, always present at rest or in motion

• The difference between total and static pressures

How is dynamic pressure calculated?

• Pressure from still air

• Pressure from air brought to a stop

• Pressure from moving air

• The difference between total and static pressures

What is total pressure?

• The difference between total and static pressures

• Pressure from still air

• The difference between dynamic and static pressures

• The sum of static and dynamic pressures

What happens to dynamic pressure when sitting still on the ground?

• It is equal to the static pressure

• It is higher than the static pressure

• It is lower than the static pressure

• There is no dynamic pressure

What does the airspeed indicator measure?

• The dynamic pressure from the static port

• The static pressure from the pitot tube

• The difference between the static pressure from the static port and the total pressure from the pitot tube

• The sum of the static and dynamic pressures from the static port

What carries total pressure (dynamic + static) into the airspeed indicator case?

• Static air line

• Pressure chamber

• Pitot tube

• Drain hole

What happens to the static pressures inside the airspeed indicator?

• They are added to the dynamic pressure

• They cancel each other out

• They are measured separately

• They are vented out through the drain hole

What is the result of the diaphragm moving in an airspeed indicator?

• The needle moves counterclockwise

• The gears connected to the needle move

• The airspeed decreases

• The diaphragm contracts

What units does an airspeed indicator use?

• Pounds per square inch (psi) and kilometers per hour (km/h)

• Kilometers per hour (km/h) and meters per second (m/s)

• Knots (kts) or miles per hour (mph)

• Feet per minute (fpm) and meters per second (m/s)