Gen Knowledge Test

Question 1

What is the relationship between altitude and stall speed?

Answer 1

Stall TAS increases with altitude.

Question 2

What is vapor lock?

Answer 2

vapor lock is when fuel in a gaseous state in the fuel lines blocks the flow of fuel.

Question 3

Why is leaning fuel mixture beneficial?

Answer 3

A too rich mix can result in a lower power with more fuel burned.

Question 4

What is movement called around the aircraft’s lateral axis?

Answer 4

Pitch.

Question 5

What is movement called around the aircraft’s longitudinal axis?

Answer 5

Roll.

Question 6

What is movement called around the aircraft’s normal or vertical axis?

Answer 6

Yaw.

Question 7

When does an aircraft produce the strongest wing tip vortecies?

Answer 7

High weight, slow speed, and clean configuration. (Eg. takeoff)

Question 8

What is the benefit of a fuel injection system over a carburetor?

Answer 8

A fuel injection system has a quicker throttle response, no possibility of carb. ice, better fuel flow, precise mixture control, and overall better engine efficiency.

Question 9

What is a constant speed propeller?

Answer 9

A propeller that angles its blades automatically in flight to maintain a constant RPM.

Question 10

What is the advantage of a constant speed propeller?

Answer 10

The blades automatically adjust to maintain a constant RPM set by the pilot with a governor.

Question 11

What is the disadvantage of a constant speed propeller?

Answer 11

More complex system thus heavier and requiring more maintenance.

Question 12

What is a variable pitch propeller?

Answer 12

A propeller that has blades whose angle may be adjusted in flight by the pilot.

Question 13

What is the advantage of a variable pitch propeller?

Answer 13

The pilot can optimize performance for different phases of flight,

Question 14

What is the disadvantage of a variable pitch propeller?

Answer 14

The blades must be constantly re-adjusted during flight to optimize performance.

Question 15

What is an adjustable pitch propeller?

Answer 15

A propeller the can have the angle of its blades adjusted on the ground.

Question 16

What is the advantage of an adjustable pitch propeller?

Answer 16

The pitch of the propeller may be adjusted for better performance at a specific task.

Question 17

What is the disadvantage of an adjustable pitch propeller?

Answer 17

The propeller angle cannot be adjusted in flight.

Question 18

What does a turbocharger do?

Answer 18

Uses hot exhaust gases to power a compressor and boost intake air pressure. This can boost pressure to greater than sea level pressure resulting in more power.

Question 19

What color is 80/87 fuel?

Answer 19

Red.

Question 20

What color is 100LL fuel?

Answer 20

Blue.

Question 21

What color is 100 (100/130) fuel?

Answer 21

Green.

Question 22

What color is Jet A1 fuel?

Answer 22

Clear or Straw.

Question 23

What is aspect ratio?

Answer 23

The ratio of the wing span to the mean chord. (Span/Mean Chord)

Question 24

What can water contamination in the fuel tank cause?

Answer 24

Engine failure to start and poor fuel combustion.

Question 25

What are the three types of Fuselage?

Answer 25

Truss, Monocoque, and Semi-Monocoque.

Question 26

What is a truss type fuselage?

Answer 26

A fuselage constructed with a frame of wooden beams or metal tubes and covered with a non load bearing outer surface.

Question 27

What is a Monocoque type fuselage?

Answer 27

A fuselage constructed with a stressed steel skin and bulkheads to carry the load plus formers to maintain shape.

Question 28

What is a Semi-Monocoque type fuselage?

Answer 28

A fuselage constructed with a combination of stressed steel skin and formers or a frame system to carry the load.

Question 29

What are the two types of truss fuselage?

Answer 29

Warren and N-Girder.