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Structures sem 2, test 1
50問 • 2年前
  • Zachary Halycz
    • 通報

    問題一覧

  • 1

    What are the types of bending brakes?

    Press brake, cornice brake, box and pan brake

  • 2

    Can a radius bar be changed?

    Yes, remove bolts with the wrench and change radius bar

  • 3

    Brakes are precision tools, where are the adjustable mechanisms located? What are the two adjustments?

    Each end brake, clamping pressure, radius bar setback

  • 4

    Adjustments to the brake can be made at one end? True or false

    False, must adjust both ends

  • 5

    When adjusting the setback of the radius bar (distance from radius bar to bending leaf) to allow for what material thickness

    1.5x material thickness

  • 6

    How is sheet metal bent in relation to grain direction?

    Perpendicular

  • 7

    Under bending is used to compensate for spring back?

    False, it’s over bending

  • 8

    How is minimum bend radius determined?

    Material thickness and temper

  • 9

    Temper is the degree of hardness and elasticity in the metal?

    True

  • 10

    If material thickness and temper are increased, the bend radius is decreased?

    False

  • 11

    Which of the following are the most common types of sheet metal found on aircraft?

    2024 and 7075

  • 12

    Lines that indicated the start and end of a bend?

    Bend tangent lines

  • 13

    The space taken up by the bend is called? (Material consumer)

    Bend allowance

  • 14

    Bend allowance is determined by calculating or referencing the bend allowance chart?

    True

  • 15

    Mold lines are also known as? (Measurement of parts putter distance after bending)

    Dimension lines

  • 16

    By definition, the mold point is where the lines intersect?

    True

  • 17

    What is the neutral axis? Where is it located?

    Where material isn’t stretched or compressed. 44.5% of the material thickness from inside of bend

  • 18

    Another term used for stretching is?

    Tension

  • 19

    What is a sight line?

    A reference point to ensure the Bend starts at the bend tangent line that we can’t see

  • 20

    What is a sight line measurement equal too? How is it located?

    Equal to the bend radius, located away from bend tangent line and closest to entering the brake first

  • 21

    Setback by definition is the distance between the mold point and the bend tangent line. True or false

    True

  • 22

    The K value for 90 degree bend is 2?

    False

  • 23

    K value can be determined by referencing the K chart or by calculating the tan of 1/2 the number of degrees of the bend. True or false

    True

  • 24

    Four pieces of information found on the bend allowance chart

    1. Bend radius 2. Material thickness 3. Bend allowance for 90 degree 4. Bend allowance for 1 degree bend individual

  • 25

    Lower number is each block on the bend radius chart is BA for 90 degree bend

    False

  • 26

    Upper number in each block on the bend radius chart is BA 90 degree bend

    True

  • 27

    A flat pattern layout drawing shows dimensions, bend tangent lines, areas that will bent and areas that will remain flat.

    True

  • 28

    Why do we perform flag pattern layout

    To calculate the developed width

  • 29

    What is a joggle

    An offset formed on a part to allow clearance on another part

  • 30

    How are jiggles created?

    Joggle clips, joggle dies, bending brakes

  • 31

    The three primary flight controls on a plane

    Ailerons, elevator, rudder

  • 32

    What does the empennage of an aircraft refer too?

    Tail assembly

  • 33

    What is an aircraft bulkhead ?

    Upright walls within the fuselage

  • 34

    This component has the same shape as the bulkhead

    Beltframe

  • 35

    Which of the following gives the fuselage it’s shape?

    Bulkhead and beltframes

  • 36

    Which of the following dissipates loads from one piece of structure to the next?

    Intercostal

  • 37

    What is a pylon ?

    Rigid engine attach support structure

  • 38

    What is a nacelle?

    Outer casting of an aircraft engine

  • 39

    Weatherproof enclosure that protects the radar

    Raydome

  • 40

    Runs the length of the aircraft and secures the seats

    Seat track

  • 41

    Floor beams run longitudinally in the aircraft main deck? (Fore- AFT) True or false?

    False

  • 42

    Primary function of aircraft fairing?

    Produces a smooth outline and reduces drag

  • 43

    What allows access of the engine for maintenance?

    Cowl

  • 44

    What is the primary structure of the wing that runs from wing root to wing tip?

    Spar

  • 45

    What structure is between the spars and attached to each spar? Forms the camber of the wing

    Ribs

  • 46

    3 damage classifications for aircraft structure

    Allowable, repairable, replaceable

  • 47

    Where can structural material identification, allowable damage limits and other info be found?

    SRM

  • 48

    Converting .125 to 32nds of an inch

    Multiply .125 by 32 and put that number over 32

  • 49

    1/8 to a decimal?

    Divide it which will equal .125

  • 50

    Always use the complimentary angle (NOT ANGLE INCLUDED) when calculating bend allowance. True or false?

    True

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    問題一覧

  • 1

    What are the types of bending brakes?

    Press brake, cornice brake, box and pan brake

  • 2

    Can a radius bar be changed?

    Yes, remove bolts with the wrench and change radius bar

  • 3

    Brakes are precision tools, where are the adjustable mechanisms located? What are the two adjustments?

    Each end brake, clamping pressure, radius bar setback

  • 4

    Adjustments to the brake can be made at one end? True or false

    False, must adjust both ends

  • 5

    When adjusting the setback of the radius bar (distance from radius bar to bending leaf) to allow for what material thickness

    1.5x material thickness

  • 6

    How is sheet metal bent in relation to grain direction?

    Perpendicular

  • 7

    Under bending is used to compensate for spring back?

    False, it’s over bending

  • 8

    How is minimum bend radius determined?

    Material thickness and temper

  • 9

    Temper is the degree of hardness and elasticity in the metal?

    True

  • 10

    If material thickness and temper are increased, the bend radius is decreased?

    False

  • 11

    Which of the following are the most common types of sheet metal found on aircraft?

    2024 and 7075

  • 12

    Lines that indicated the start and end of a bend?

    Bend tangent lines

  • 13

    The space taken up by the bend is called? (Material consumer)

    Bend allowance

  • 14

    Bend allowance is determined by calculating or referencing the bend allowance chart?

    True

  • 15

    Mold lines are also known as? (Measurement of parts putter distance after bending)

    Dimension lines

  • 16

    By definition, the mold point is where the lines intersect?

    True

  • 17

    What is the neutral axis? Where is it located?

    Where material isn’t stretched or compressed. 44.5% of the material thickness from inside of bend

  • 18

    Another term used for stretching is?

    Tension

  • 19

    What is a sight line?

    A reference point to ensure the Bend starts at the bend tangent line that we can’t see

  • 20

    What is a sight line measurement equal too? How is it located?

    Equal to the bend radius, located away from bend tangent line and closest to entering the brake first

  • 21

    Setback by definition is the distance between the mold point and the bend tangent line. True or false

    True

  • 22

    The K value for 90 degree bend is 2?

    False

  • 23

    K value can be determined by referencing the K chart or by calculating the tan of 1/2 the number of degrees of the bend. True or false

    True

  • 24

    Four pieces of information found on the bend allowance chart

    1. Bend radius 2. Material thickness 3. Bend allowance for 90 degree 4. Bend allowance for 1 degree bend individual

  • 25

    Lower number is each block on the bend radius chart is BA for 90 degree bend

    False

  • 26

    Upper number in each block on the bend radius chart is BA 90 degree bend

    True

  • 27

    A flat pattern layout drawing shows dimensions, bend tangent lines, areas that will bent and areas that will remain flat.

    True

  • 28

    Why do we perform flag pattern layout

    To calculate the developed width

  • 29

    What is a joggle

    An offset formed on a part to allow clearance on another part

  • 30

    How are jiggles created?

    Joggle clips, joggle dies, bending brakes

  • 31

    The three primary flight controls on a plane

    Ailerons, elevator, rudder

  • 32

    What does the empennage of an aircraft refer too?

    Tail assembly

  • 33

    What is an aircraft bulkhead ?

    Upright walls within the fuselage

  • 34

    This component has the same shape as the bulkhead

    Beltframe

  • 35

    Which of the following gives the fuselage it’s shape?

    Bulkhead and beltframes

  • 36

    Which of the following dissipates loads from one piece of structure to the next?

    Intercostal

  • 37

    What is a pylon ?

    Rigid engine attach support structure

  • 38

    What is a nacelle?

    Outer casting of an aircraft engine

  • 39

    Weatherproof enclosure that protects the radar

    Raydome

  • 40

    Runs the length of the aircraft and secures the seats

    Seat track

  • 41

    Floor beams run longitudinally in the aircraft main deck? (Fore- AFT) True or false?

    False

  • 42

    Primary function of aircraft fairing?

    Produces a smooth outline and reduces drag

  • 43

    What allows access of the engine for maintenance?

    Cowl

  • 44

    What is the primary structure of the wing that runs from wing root to wing tip?

    Spar

  • 45

    What structure is between the spars and attached to each spar? Forms the camber of the wing

    Ribs

  • 46

    3 damage classifications for aircraft structure

    Allowable, repairable, replaceable

  • 47

    Where can structural material identification, allowable damage limits and other info be found?

    SRM

  • 48

    Converting .125 to 32nds of an inch

    Multiply .125 by 32 and put that number over 32

  • 49

    1/8 to a decimal?

    Divide it which will equal .125

  • 50

    Always use the complimentary angle (NOT ANGLE INCLUDED) when calculating bend allowance. True or false?

    True