Altimeter Effects and Functions

The video tutorial explains the pitot-static system and its role in controlling the altimeter, vertical speed indicator, and airspeed indicator. It discusses how blockages in the static port or pitot tube affect instrument readings. The tutorial covers altimeter settings, true altitude, and the importance of adjusting for pressure and temperature changes. It also explains pressure and density altitude and their impact on flight performance.

Which instruments are controlled by the pitot-static system?

• Airspeed Indicator, Gyroscope, Altimeter

• Vertical Speed Indicator, Compass, Gyroscope

• Altimeter, Compass, Airspeed Indicator

• Altimeter, Vertical Speed Indicator, Airspeed Indicator

What happens to the airspeed indicator if the pitot tube is blocked?

• It remains unaffected

• It reads zero

• It reads lower than actual speed

• It reads inaccurately higher

How does the altimeter determine altitude?

• By measuring the aircraft's speed

• By calculating the distance from the ground

• By comparing outside air pressure to known sea level pressure

• By using GPS data

What is the effect of changing the altimeter setting from 29.92 to 30.00?

• It resets the altimeter

• It has no effect on the indicated altitude

• It increases the indicated altitude

• It decreases the indicated altitude

What is pressure altitude?

• Altitude above ground level

• Altitude read when the altimeter is set to standard pressure

• Altitude adjusted for temperature changes

• Altitude measured by GPS

How does temperature affect density altitude?

• Higher temperatures decrease density altitude

• Higher temperatures increase density altitude

• Temperature has no effect on density altitude

• Lower temperatures increase density altitude

Why must the altimeter be periodically updated during a flight?

• To adjust for changes in aircraft weight

• To correct for changes in pressure and temperature

• To reset the instrument

• To calibrate with the compass

What happens to the altimeter reading when flying from high to low pressure areas?

• It reads zero

• It reads lower than true altitude

• It reads higher than true altitude

• It remains unchanged

What is the memory aid for navigating with the altimeter when flying from high to low pressure?

• High to low, look out below

• High to high, stay on course

• Low to high, fly the sky

• Low to low, keep it slow

How does flying from warm to cold air affect the altimeter reading?

• It reads zero

• It reads lower than true altitude

• It reads higher than true altitude

• It remains unchanged