Chapter 8, Flight Instruments Flashcards
What instruments use the pitot-static system?
Vertical Speed
Altimeter
Airspeed
What is used to measure the total combined pressures that are present when an aircraft moves through the air?
Pitot tube
What is also known as ambient pressure, is always present whether an aircraft is moving or at rest, and is simply the barometric pressure in the local area.
Static pressure
How does the total pressure enter the pitot tube?
An opening at the front
Total pressure is made up of dynamic pressure plus what other pressure?
Static air
What is the purpose of the small hole at the back of the pitot tube?
Moisture drain
What is the one instrument that utilizes the pitot tube?
Airspeed
True or false, the instrument mentioned in the question above requires static pressure as well.
True
What is an instrument that measures the height of an aircraft above a given pressure level?
Altimeter
What is a sealed wafer that is evacuated to an internal pressure of 29.92 inches of mercury (“Hg)?
Expand
The altimeter uses ____________ pressure as its source of operation.
Static air
True or false, as altitude decreases atmospheric pressure decreases.
False
What is the purpose of the adjustment knob on an altimeter?
Adjusting the barometric pressure setting
How does the pilot know the setting for the altimeter?
Zero
True or false, the Vertical Speed Indicator (VSI) utilizes a calibrated leak.
True