High Density Altitude

What effect does high density altitude have on aircraft performance?

• Increases engine power

• Decreases lift and engine performance

• Increases lift

• Decreases drag

How does high pressure affect aircraft performance?

• Increases lift and engine performance

• Decreases lift

• Increases drag

• Decreases thrust

Which of the following is a result of low pressure on an aircraft?

• Increased lift

• Decreased engine performance

• Increased thrust

• Decreased drag

What is the effect of high temperature on aircraft performance?

• Increases lift

• Decreases engine power

• Increases thrust

• Decreases drag

How does humidity affect aircraft performance?

• Increases lift

• Decreases engine performance

• Increases thrust

• Decreases drag

Which force opposes lift in an aircraft?

• Thrust

• Drag

• Gravity

• Pressure

What is the primary force that opposes thrust in an aircraft?

• Lift

• Drag

• Gravity

• Pressure

What happens to the lift if the velocity of the aircraft doubles, assuming all other factors remain constant?

• Lift remains the same

• Lift doubles

• Lift quadruples

• Lift halves

Which of the following factors does NOT directly affect the drag on an aircraft?

• Air density

• Wing area

• Humidity

• Velocity

What is the relationship between altitude and air density?

• Air density increases with altitude

• Air density decreases with altitude

• Air density remains constant with altitude

• Air density is not affected by altitude