Aerospace Revision

Question 1

What is Newtons Third Law and how does it relate to lift?

Answer 1

A. for every action there is an equal and opposite reaction.
B. wings are forced upwards, pushing air upwards therefore the wings get pushed upwards.

Question 2

What is Bernouli’s principle and how does it relate to lift?

Answer 2

A. an increase in the speed of fluid with a decrease of pressure or a decrease in the fluids potential energy.
B. faster moving air produces less pressure, causing the wing to lift toward the area of low pressure.

Question 3

What is the Iterative problem-solving process? (in order)

Answer 3

1. define the problem.
2. brainstorm solutions.
3. pick a solution.
4. implement the solution.
5. evaluate/review the results.

Question 4

Who was the first woman to fly across the Atlantic and when was this?

Answer 4

Amelia Earhart, June 1928

Question 5

Who completed the first powered flight and when was this?

Answer 5

Orville Wright (The Wright Brothers), December 1903

Question 6

What is a ‘waters thinking habit’?

Answer 6

a spectrum of strategies that foster problem-solving and thoughtful reflection about systems of interest.`

Question 7

What is systems thinking?

Answer 7

a way to approach issues by looking at them as systems.

Question 8

what is a balancing/reinforcing loop?

Answer 8

A. cycle in which circles of cause and effect that counter a change with a push in the opposite direction.
B. a circular system in which they are self-reinforced.

Question 9

what is lift?

Answer 9

a positive force, perpendicular to the flight direction, generated by wings, air pressure below the wing is greater than air pressure above the wing.

Question 10

What are the types of clouds found at Low level altitudes?

Answer 10

A. Low level - Stratus, Stratocumulus, cumulus, nimbostratus, cumulonimbus.

Question 11

What types of clouds are found at Medium level altitudes?

Answer 11

A. Altostratus, altocumulus, cumulonimbus.

Question 12

What types of clouds are found at High level altitudes?

Answer 12

A. Cirrostratus, cirrocumulus, cirrus, cumulonimbus.

Question 13

What are the 6 main instruments found in an aircraft?

Answer 13

Airspeed indicator, Heading indicator (HSI), Altimeter, Attitude indicator, Turn coordinator, vertical speed indicator (VSI).

Question 14

What process does a jet engine undergo?

Answer 14

Air is sucked in through the intake of the engine -> air is then compressed -> compressed air is mixed with fuel and then combusts -> air is then shot out through exhaust creating thrust.

Question 15

Formula for aspect ratio?

Answer 15

Wingspan ÷ chord average

Question 16

what are the two types of drag and how do they work?

Answer 16

A. Parasitic drag - all drag that is not associated with lift.
B. Induced drag - drag on an aerofoil which arises from the development of lift.

Question 17

Decode this TAF: TAF YBWP 040419Z 0406/0418 13008KT 9999 SCT035 RMK T 30 26 24 21 Q 1011 1012 1015 1014

Answer 17

TAF – message indication.
YBWP – location identification.
040419Z – Day: 04; Time: 04:19 UTC
0400/0424 – Starts at Day:04; 06:00 UTC. Ends at Day:04; 18:00 UTC
13008KT – wind is from 130 at 8 Knots.
9999 – visibility is greater than 10000m.
SCT 035 – cloud cover scattered at 3500FT AAL.
RMKS – Temp and QNH changes.
30 Visibility 30 meters.
26 Visibility 26 meters.
24 Visibility 24 meters.
21 Visibility 21 meters.

1011 Visibility 1011 meters.
1012 Visibility 1012 meters.
1015 Visibility 1015 meters.
1014 Visibility 1014 meters.

Question 18

what is an electrical system?

Answer 18

An aircraft electrical system is a self contained network of components that generate, transmit, distribute, utilize and store electrical energy.

Question 19

What is a Pneumatic system?

Answer 19

Pneumatic systems, commonly known as vacuum or pressure systems, power the heading and attitude indicators in most general aviation (GA) aircraft, and in many aircraft, also power the autopilot and de-ice systems.

Question 20

What is a hydraulic system?

Answer 20

Aircraft hydraulic systems are responsible for maintaining any aircraft components or devices that use fluid or gas pressure to operate

Question 21

What is the Coefficient of lift formula?

Answer 21

Mg = ½ CL p v² S

Question 22

What is the “G” in the coefficient of lift formula and what number is it?

Answer 22

A. Gravity.
B. 9.8

Question 23

Parts of a jet engine?

Answer 23

inlet, compressor, diffuser, combustor, turbine, exhaust.

Question 24

What are the parts of an aircrafts hydraulic system?

Answer 24

Reservoir, pump, actuators, valves, filters, Hydraulic fluid, Hydraulic pumps, accumulators, cylinder.

Question 25

What is static stability?

Answer 25

the initial tendency of an aircraft to return to its original position.

Question 25

What is dynamic stability?

Answer 25

What happens over time

Question 26

what are the three types of cockpit controls?

Answer 26

instinctive control, manual controls, fly by wire.

Question 27

What are the four forces of flight?

Answer 27

Lift, thrust, drag, gravity/weight.

Question 28

What is the angle of attack?

Answer 28

The angle between the chordline and the relative airflow.