5.2: Density Altitude Computations

Question 1

Determine the density altitude for these conditions:
Altimeter setting = 30.35
Runway temperature = +25°F
Airport elevation = 3,894 ft. MSL

Answer 1

2,000 ft. MSL

Question 2

What is the effect of a temperature increase from 30 to 50 °F on the density altitude if the pressure altitude remains at 3,000 feet MSL?

Answer 2

1,300-foot increase.

Question 3

What is the effect of a temperature increase from 35 to 50°F on the density altitude if the pressure altitude remains at 3,000 feet MSL?

Answer 3

1,000-foot increase.

Question 4

What is the effect of a temperature decrease and a pressure altitude increase on the density altitude from 90°F and 1,250 feet pressure altitude to 55°F and 1,750 feet pressure altitude?

Answer 4

1,700-foot decrease.

Question 5

Determine the pressure altitude at an airport that is 3,563 feet MSL with an altimeter setting of 29.96.

Answer 5

3.527 ft. MSL

Question 6

Determine the pressure altitude at an airport that is 1,386 feet MSL with an altimeter setting of 29.97.

Answer 6

1,341 feet MSL

Question 7

What is the effect of a temperature increase from 25 to 50° F on the density altitude if the pressure altitude remains at 5,000 feet?

Answer 7

1,650-foot increase.

Question 8

Determine the pressure altitude with an indicated altitude of 1,380 feet MSL with an altimeter setting of 28.22 at standard temperature.

Answer 8

2,991 feet MSL.

Question 9

Determine the density altitude for these conditions:
Altimeter setting = 29.25
Runway temperature = +81°F
Airport elevation = 5,250 ft MSL

Answer 9

8,500 feet MSL.