Peters2202 Word Scramble

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Question	Answer
What is the main stress aircraft rivets are designed to take? Keep in mind that rivets join metal together in an environment subject to continual flexing, and expansion and contraction.	Shear
A type of fuselage construction designed to have the loads carried and transmitted by the substructure (for example: stringers and longerons) is known as:	Semi-Monocoque
A width measurement left or right of the vertical center line of the aircraft is the:	Butt Line
The property which enables a metal to return to its original shape, when the force which causes the change of shape is removed is known as:	Elasticity
The neutral axis of a bend is:	a line created by the points where the compressive load of the bend equals the tension load
Bend allowance refers to the	amount of material in a flat-pattern layout that must be allocated to make a bend
Setback is the	distance between the bend tangent line and the mold point
The radius of a universal rivet set used to drive rivets is	slightly greater than that of the appropriate rivet head
The proper drill bit for an MS20470AD3-4 rivet is a number:	40
The minimum acceptable dimensions, where D equals the diameter of the shank, for a properly driven rivet buck tail is	height 0.50 D, width 1.5 D
Which of the following is not a type of aircraft flap?	Rutan
Which rivet should be used for joining two pieces of 0.020 inch aluminum alloy? Keep in mind the standard for determining the length and width of rivets.	MS20470AD3-3
A universal head rivet is identified by the number	MS20470
What is the bend allowance for a 90-degree bend in a piece of 0.064 inch material bent over a 3/16 inch radius?	0.340
Why can aviation snips cut ticker metal than common hand snips?	They have a compound leverage type handle design
As a general rule the diameter of a rivet should be	Equal to three times the thickness of the thickness sheet of the joint material
K-factor charts calculate	The setback
What color cleco fastener is used for a #11 hole?	Brass
True or False, the spring brake is not a straight line sheet metal forming machine	True
The use of pencils for marking on sheet metal parts should be avoided because	They harden the sheet in area of the mark
Clad aluminum alloys are used on aircraft because they	Are less subject to corrosion than uncoated aluminum alloys
True or false, cantilever wings have no external bracing.	True
When fabricating part from alclad 2024-T3 aluminum sheet stock,	When possible all bends should be made across the grain of the metal (not parallel to the grain direction)
The purpose of a relief hole is to	lighten the metal
Monocoque fuselages derive their principle strength from	Bulkheads, formers and skin
Minimum edge distance for universal head rivets is	2 Diameters
True or false? Rivet edge distance is measured form the center of the rivet to the nearest edge.	True
When aluminum alloys are heat treated to their critical temperature and quenched, it is_____________ heat treated.	Solution
A rivet with a raised dot on the head would be a	2017
A rivet designated as a DD rivet would be which type of alloy?	2024
When brazing, the filler rod should be melted by	Touching the rod to the hot metal
__________ is the force per unit area tending to stretch a structural member.	Tension
______________ is actually a combination of two forces acting upon a structural member at one or more points.	Bending
Damages that can be repaired by patching, splicing, and insertion without imparment of the original strength is considered:	Repairable damage
Whenever possible, use of an elongated octagonal patch for a repair of a smooth skin because this type of patch	Eliminates dangerous stress concentrations
The design of major structural repairs not included in the aircraft’s maintenance or structural repair manual must be	Submitted on a form 337 and approved by the FAA
The primary function of a fastener in a lap joint is to	Transmit the loads from one layer of the patch to another
What should be the included angle of a twist drill for standard sheet metal work?	118
The load-carrying capabilities of a rivet of any given material are a function of the	the diameter of the rivet
What is the usual result of making a bend with too small a radius?	the material is likely to crack
What is not a factors that enters into the amount of material required for bend allowance?	coarseness of the material
The proper drill bit for an AN470AD5-6 rivet is a number	21
What must be done to the face of a bucking bar to prevent its marring the rivet?	keep it clean and polished (smooth)
What is the best way of accurately locating a rivet hole for drilling in a sheet metal skin?	use a center punch
The following metal and rivet combination would be properly matched.	AN470AD4 rivets in .040 2024 sheet
When comparing the machining techniques for stainless steel sheet material to those for aluminum alloy sheet, it is normally considered good practice to drill the stainless steel at a	lower speed with more pressure applied to the drill
In making wing skin repairs,	rivets selected should be the same alloy as the material being riveted.
The identifying marks on the heads of aluminum alloy rivets indicate the	specific alloy used in the manufacture of the rivet.
What is the purpose of refrigerating 2017 and 2024 aluminum alloy rivets after heat treatment?	retard age hardening
What is the purpose of a lightening hole in a wing rib?	to reduce weight without reducing strength
Why should the edges of a circular patch be chamfered and turned down slightly?	to provide a tighter fit on the skin surface
A file with two rows of teeth, one row set at 75 degrees and the other row set at 45 degrees, is known as a _____________ file	Double cut
How large should the center punch mark be for starting a drill in aluminum alloy skin?	just large enough for the drill to begin cutting, but not made heavy enough to distort the skin.
Where a rectangular cutout is used, the radius at each corner should be no less than __________ inch.	1/2
The starting and ending points of the bend are known as	Bend Tangent Lines
Why should a carburizing flame be avoided when welding steel?	it hardens the surface
Which item listed below is the most important consideration when selecting a welding rod?	type of metal to be welded
In gas welding, the amount of heat applied to material being welded is controlled by	the size of the tip opening
In electric-arc welding, the arc is struck between the metal to be welded and the	electrode
A flashback is	the burning back of the flame into (or behind) the mixing chamber of the torch
An oxyacetylene flame whose inner cone has a sharp point and burns with a hissing sound is a/an:	oxidizing flame
Acetylene hoses are	red with left-hand thread fittings
Which is correct concerning the use of a file?	Apply pressure on the forward stroke, only, except when filing very soft metals such as lead or annealed aluminum
The primary alloying agent of 2024-T36 is indicated by the number	2
Which rivet may be used as received without further treatment?	2117-T3
A piece of flat stock that is to be bent to a closed angle of 15 degrees must be bent through an angle of	165 degrees
The purpose of a joggle is to	Allow clearance for a sheet or an extrusion
Welding over a brazed or soldered joint is	Not permitted
In selecting a torch tip size to use in welding, the size of the tip opening determines the	Amount of heat applied to the work
Filing or grinding a weld bead	Reduces the strength of the joint
What is the bend allowance for .040 material thickness, 3/16th bend radius, with a 85° bend?	.305
What is the bend allowance for .064 material thickness, 1/8th bend radius, with a 45° bend?	.120
What is the set back for .040 material thickness, 3/16th bend radius, with a 85° bend?	208
What is the set back for .064 material thickness, 1/8th bend radius, with a 45° bend?	.078
What is the set back for .040 material thickness, 1/8th bend radius, with a 60° bend?	.095

Created by: PetersAviation