Pitot-Static System

Question 1

What does the Airspeed Indicator (ASI) measure?

Answer 1

Difference between ram air pressure in pitot tube and ambient pressure in static port

Question 2

What device does the altimeter use to compare air pressure?

Answer 2

Aneroid barometer

Question 3

What is the standard altimeter setting above 18,000 feet?

Answer 3

29.92” Hg

Question 4

What errors is the altimeter susceptible to?

Answer 4

Temperature errors

Question 5

Fill in the blank: High to low, look out _______.

Answer 5

below

Question 6

What does the Vertical Speed Indicator (VSI) show?

Answer 6

Rate of climb

Question 7

How does the VSI create a lag between indicated and actual rate?

Answer 7

Using a calibrated leak within the unit’s pressure chambers

Question 8

What happens when the front of the pitot tube is blocked and the static port is clear?

Answer 8

Reads zero

Question 9

What is the result when the front and drain of the pitot tube are blocked but the static port is clear?

What happens to the altitude?

Answer 9

Increases with altitude

Question 10

What occurs with our airspeed when the pitot tube is clear and the static port is blocked? What happens to our altitude?

Answer 10

Decreases with altitude

Question 11

What happens to the VSI when it is frozen in place?

Answer 11

Reads zero