Day 1 Progress Check

Question 1

Which of the following auxiliary lift devices is primarily used to increase lift during takeoff and improve handling characteristics at low airspeeds?

Answer 1

Slats

Question 2

Dynamic stability deals with the tendency of a displaced body to return to equilibrium.

Answer 2

F

Question 3

What is the law of conservation of energy?

Answer 3

Energy can neither be created nor destroyed.

Question 4

Spoilers are used to increase lift and improve handling characteristics at low airspeeds.

Answer 4

F

Question 5

What force is responsible for moving an aircraft forward?

Answer 5

Thrust

Question 6

Parasite drag can be completely eliminated by streamlining the shape of the aircraft.

Answer 6

F

Question 7

Which control surface is responsible for controlling the pitch of an aircraft?

Answer 7

Elevators

Question 8

At sea level, what is the standard atmospheric pressure measured in pounds per square inch (psi)?

Answer 8

14.7 psi

Question 9

What axis extends lengthwise through the fuselage from the nose to the tail of an aircraft?

Answer 9

Longitudinal axis

Question 10

The CG (Center of Gravity) of an aircraft is the point where all the weight of the aircraft is concentrated.

Answer 10

T

Question 11

What is the primary composition of the air in Earth’s atmosphere?

Answer 11

Nitrogen and oxygen

Question 12

Servo tabs are designed to move in the opposite direction of the primary flight control surface.

Answer 12

F

Question 13

What is the primary purpose of trim tabs on an aircraft?

Answer 13

To correct any tendency of the aircraft to move toward an undesirable flight attitude

Question 14

Which of the following can increase lift on an aircraft wing?

Answer 14

Increasing the air velocity over the wing

Question 15

What is velocity?

Answer 15

The rate of motion in a particular direction in relation to time.

Question 16

Which control surface is responsible for controlling the yaw of an aircraft?

Answer 16

Rudder

Question 17

What is the primary purpose of winglets on an aircraft?

Answer 17

To reduce aerodynamic drag associated with vortices at the wingtips

Question 18

Air density is directly proportional to pressure and inversely proportional to temperature.

Answer 18

T

Question 19

The angle of incidence is the angle between the chord line of the wing and the direction of the relative wind.

Answer 19

F

Question 20

What is the angle between the chord line of the wing and the longitudinal axis of the aircraft called?

Answer 20

Angle of Incidence

Question 21

Which force counteracts the effects of weight and acts vertically?

Answer 21

Lift

Question 22

Bernoulli’s principle states that as the speed of a fluid increases, its pressure also increases.

Answer 22

F

Question 23

What principle explains the creation of lift due to the difference in air velocity over and under the wing?

Answer 23

Bernoulli’s Principle

Question 24

What type of stability exists when a disturbed object tends to return to equilibrium?

Answer 24

Positive static stability

Question 25

The aspect ratio is the comparison of the wingspan to the chord length, and a higher aspect ratio results in greater lift.

Answer 25

T

Question 26

What surface is primarily responsible for controlling longitudinal stability in an aircraft?

Answer 26

Horizontal stabilizer