FAA PPL Test Prep: Ch. 8 (3 of 3): Aircraft Performance Questions

If the outside air temperature (OAT) at given altitude is warmer than standard, the density altitude is

A)equal to pressure altitude.
B)lower than pressure altitude.
C)higher than pressure altitude.

C

(Figure 8) Determine the density altitude for these

Altimeter...29.25
Runway Temp...+81 degrees F
Airport Elevation...5,250 ft MSL

A)4,600 ft MSL
B)5,877 ft MSL
C)8,500 ft MSL

C

(Figure 8) Determine the pressure altitude at an airport that is 3,563 ft MSL with an altimeter setting of 29.96

A)3,527 ft MSL
B)3,556 ft MSL
C)3,639 ft MSL

A

(Figure 8) Determine the density altitude for these conditions.

Altimeter...30.35
Runway Temp...+25 degrees F
Airport Elevation...3,894 ft MSL

A)2,000 ft MSL
B)2,900 ft MSL
C)3,500 ft MSL

A

(Figure 8) What is the effect of a temperature decrease and a pressure altitude increase on the density altitude from 90 degrees F and 1,250 ft pressure altitude to 55 degrees F and 1,750 ft pressure altitude?

A)1,700 foot increase
B)1,300 foot decrease
C)1,700 foot decrease

C

What are the standard temperature and pressure values for sea level?

A)15 degree C and 29.92" Hg
B)59 degree C and 1013.2 millibars
C)59 degree F and 29.92 millibars

A

What factor would tend to increase the density altitude at a given airport?

A)An increase in barometric pressure
B)An increase in ambient temperature
C)A decrease in relative humidity

B

Which combination of atmospheric conditions will reduce aircraft takeoff and climb performance?

A) Low temperature, low relative humidity, and low density altitude.
B) High temperature, low relative humidity, and low density altitude.
C) High temperature, high relative humidity, and high density altitude.

C

What effect does high density altitude have on aircraft performance?

A) It increases engine performance.
B) It reduces climb performance.
C) It increases takeoff performance.

B

(Refer to figure 8.) 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?

A) 1,200-foot increase.
B) 1,400-foot increase.
C) 1,650-foot increase.

C

(Refer to figure 8.) Determine the pressure altitude with an indicated altitude of 1,380 feet MSL with an altimeter setting of 28.22 at standard temperature.

A) 2,991 feet MSL.
B) 2,913 feet MSL.
C) 3,010 feet MSL.

A

(Refer to figure 8.) What is the effect of a temperature increase from 35 degree to 50 degree F on the density altitude if the pressure altitude remains at 3,000 feet MSL

A)1,000 foot increase
B)1,100 foot decrease
C)1,300 foot increase

A

(Refer to figure 8.) Determine the pressure altitude at an airport that is 1,386 feet MSL with an altimeter setting of 29.97

A)1,341 feet MSL
B)1,451 feet MSL
C)1,562 feet MSL

A

What effect, if any, does high humidity have on aircraft performance?

A)It increases performance
B)It decreases performance
C)It has no effect on performance

B

What effect does high density altitude, as compared to low density altitude, have on propeller efficiency and why?

A) Efficiency is increased due to less friction on the propeller blades.
B) Efficiency is reduced because the propeller exerts less force at high density altitudes than at low density altitudes.
C) Efficiency is reduced due to the increased force of the propeller in the thinner air.

B

(Refer to figure 40.) Determine the total distance required for takeoff to clear a 50-foot obstacle.

OAT...Std
Pressure altitude...4,000 ft
Takeoff weight...2,800 lb
Headwind component...Calm

A) 1,500 feet.
B) 1,750 feet.
C) 2,000 feet.

B

(Refer to figure 40.) Determine the total distance required for takeoff to clear a 50-foot obstacle.

OAT...Std
Pressure altitude...Sea level
Takeoff weight...2,700 lb
Headwind component...Calm

A) 1,000 feet.
B) 1,400 feet.
C) 1,700 feet.

B

(Refer to figure 40.) Determine the approximate ground roll distance required for takeoff.

OAT1...00 °F
Pressure altitude...2,000 ft
Takeoff weight...2,750 lb
Headwind component...Calm

A) 1,150 feet.
B) 1,300 feet.
C) 1,800 feet.

A

(Refer to figure 40.) Determine the approximate ground roll distance required for takeoff.

OAT...90 °F
Pressure altitude...2,000 ft
Takeoff weight...2,500 lb
Headwind component...20 kts

A) 650 feet.
B) 850 feet.
C) 1,000 feet.

A

(Refer to figure 35.) Approximately what true airspeed should a pilot expect with full throttle at 10,500 feet with a temperature of 36 °F above standard?

A)190 kts
B)159 kts
C)165 kts

C

(Refer to figure 35.) What is the expected fuel consumption for a 1,000-nautical mile flight under the following conditions?

Pressure altitude...8,000 ft
Temperature...22 degree C
Manifold pressure...20.8 inches Hg
Wind...Calm

A) 60.2 gallons.
B) 70.1 gallons.
C) 73.2 gallons.

B

(Refer to figure 35.) What is the expected fuel consumption for a 500-nautical mile flight under the following conditions?

Pressure altitude...4,000 ft
Temperature...+29 °C
Manifold pressure...21.3" Hg
Wind...Calm

A) 31.4 gallons.
B) 36.1 gallons.
C) 40.1 gallons.

B

(Refer to figure 35.) What fuel flow should a pilot expect at 11,000 feet on a standard day with 65 percent maximum continuous power?

A) 10.6 gallons per hour.
B) 11.2 gallons per hour.
C) 11.8 gallons per hour.

B

(Refer to figure 35.) Determine the approximate manifold pressure setting with 2,450 RPM to achieve 65 percent maximum continuous power at 6,500 feet with a temperature of 36 °F higher than standard.

A) 19.8 inches Hg.
B) 20.8 inches Hg.
C) 21.0 inches Hg.

C

(Refer to figure 38.) Determine the approximate landing ground roll distance.

Pressure altitude...1,250 ft
Headwind...8 kts
Temperature...Std

A) 275 feet.
B) 366 feet.
C) 470 feet.

B

(Refer to figure 37.) Determine the total distance required to land.

OAT...32 °F
Pressure altitude...8,000 ft
Weight...2,600 lb
Headwind component...20 kts
Obstacle...50 ft

A) 850 feet.
B) 1,400 feet.
C) 1,750 feet.

B

(Refer to figure 37.) Determine the total distance required to land.

OAT...Std
Pressure altitude...10,000 ft
Weight...2,400 lb
Wind component...Calm
Obstacle...50 ft

A) 750 feet.
B) 1,925 feet.
C) 1,450 feet.

B

(Refer to figure 37.) Determine the total distance required to land.

OAT...90 °F
Pressure altitude...3,000 ft
Weight...2,900 lb
Headwind component...10 kts
Obstacle..50 ft

A) 1,450 feet.
B) 1,550 feet.
C) 1,725 feet.

C

(Refer to figure 37.) Determine the approximate total distance required to land over a 50-foot obstacle.

OAT...90 °F
Pressure altitude...4,000 ft
Weight...2,800 lb
Headwind component...10 kts

A) 1,525 feet.
B) 1,775 feet.
C) 1,950 feet.

B

(Refer to figure 38.) Determine the approximate landing ground roll distance.

Pressure altitude...Sea level
Headwind...4 kts
Temperature...Std

A) 356 feet.
B) 401 feet.
C) 490 feet.

B

(Refer to figure 38.) Determine the total distance required to land over a 50-foot obstacle.

Pressure altitude...5,000 ft
Headwind...8 kts
Temperature...41 °F
Runway...Hard surface

A) 837 feet.
B) 956 feet.
C) 1,076 feet.

B

(Refer to figure 38.) Determine the total distance required to land over a 50-foot obstacle.

Pressure altitude...7,500 ft
Headwind...8 kts
Temperature...32°F
Runway...Hard surface

A) 1,004 feet.
B) 1,205 feet.
C) 1,506 feet.

A

(Refer to figure 38.) Determine the approximate landing ground roll distance.

Pressure altitude...5,000 ft
Headwind...Calm
Temperature...101 °F

A) 495 feet.
B) 545 feet.
C) 445 feet.

B

(Refer to figure 38.) Determine the total distance required to land over a 50-foot obstacle.

Pressure altitude...3,750 ft
Headwind...12 kts
Temperature...Std

A) 794 feet.
B) 836 feet.
C) 816 feet.

C

(Refer to figure 36.) What is the crosswind component for a landing on Runway 18 if the tower reports the wind as 220° at 30 knots?



A) 19 knots.
B) 23 knots.
C) 30 knots.

A

(Refer to figure 36) What is the headwind component for a landing on Runway 18 if the tower reports the wind as 220° at 30 knots?

A) 19 knots.
B) 23 knots.
C) 26 knots.

B

(Refer to figure 36.) Determine the maximum wind velocity for a 45° crosswind if the maximum crosswind component for the airplane is 25 knots.

A) 25 knots.
B) 29 knots.
C) 35 knots.

C

(Refer to figure 36.) What is the maximum wind velocity for a 30° crosswind if the maximum crosswind component for the airplane is 12 knots?

B) 20 knots.
C) 24 knots.
A) 16 knots.

C

(Refer to figure 36.) With a reported wind of north at 20 knots, which runway (6, 29, or 32) is acceptable for use for an airplane with a 13-knot maximum crosswind component?

A) Runway 6.
B) Runway 29.
C) Runway 32.

C

(Refer to figure 36.) With a reported wind of south at 20 knots, which runway (10, 14, or 24) is appropriate for an airplane with a 13-knot maximum crosswind component?

A) Runway 10.
B) Runway 14.
C) Runway 24.

B

Which factor would tend to increase the density altitude at a given airport?

A)An increase in barometric pressure.
B)An increase in ambient temperature.
C)A decrease in relative humidity.

B