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WorksheetsAVI 121 (Aircraft Hardware)
Total questions: 69
Worksheet time: 40mins
The method of wiring two or more units in such a manner that any tendency of one to loosen is counteracted by tightening the wire.
(a)
A ___ is anchored to an adjacent fillister head screw.
nut
wire
May come apart due to vibration which may lead to cable circuits being open.
intact connectors
Loose connectors
The safety wire should be as ___ as practicable and must be installed in the direction which tightens the nut on the plug.
long
short
are usually used in control systems to apply the proper amount of tension to the cables.
(a)
Turnbuckles that is "satisfactory"
single wrap
double wrap
Turnbuckles that is "preferred"
single wrap
double wrap
A fastener that can turn in the body in which it is mounted but will not drop out when unscrewed from the part it is holding.
Captive
Turnlock
Dzus
Camloc
Airloc
Permits quick and easy removal of access panels for inspection and servicing purposes.
Captive
Turnlock
Dzus
Camloc
Airloc
Features a stud with a groove or slot that’s connected to a spring-loaded mechanism. As you turn the stud it will engage the groove or slot.
Captive
Turnlock
Dzus
Camloc
Airloc
A high-strength, quick-release rotary fastener that may be used on flat or curved inside and outside panels.
Captive
Turnlock
Dzus
Camloc
Airloc
Fabricated from high-carbon,
heat treated steel heat-treated
Captive
Turnlock
Dzus
Camloc
Airloc
The Dzus ___ are fabricated from steel and are cadmium plated.
studs
grommet
spring
The Dzus ___ is made of
aluminum or aluminum alloy
material.
studs
grommet
spring
The Dzus ___ is made of steel,
cadmium plated to prevent corrosion.
studs
grommet
spring
secure the hub and the shaft to prevent relative movement between a power transmitting shaft and an
Key and keway
Snap rings
either round or flat in cross-section which is tempered to have springlike action.
Key and keway
Snap rings
Aircaft (a) are used to fasten an aircraft structure and are usually made of aluminum alloy. It is a metal pin with a formed head on one end.
Aircraft rivet type that is driven using a bucking bar
Solid shank type
Special (blind) type
Aircraft rivet type that areas where using the bucking bar is not permissible.
Solid shank type
Special (blind) type
(a) store rivets should never be used as a substitute for aircraft- quality rivets.
Marking on the ___ of the rivets are used to classify their characteristics.
head
tail
These are used in the interior of the aircraft except where clearance is required for adjacent members.
Round head
Flat head
Brazier head
universal head
countersunk
These are used on interior structures.
Round head
Flat head
Brazier head
universal head
countersunk
Has a head of large diameter good for riveting thin sheet stock (skin).
Round head
Flat head
Brazier head
universal head
countersunk
A combination of the roundhead, flathead, and brazier head.
Round head
Flat head
Brazier head
universal head
countersunk
A flat-topped and beveled toward the shank to fit in the countersunk or dimpled hole.
Round head
Flat head
Brazier head
universal head
countersunk
These rivets are usually used for repair work and widely used fastening devices for sheet metal aircraft
construction.
Solid shank rivets
blind rivets
mechanically expanded rivets
self-plugging rivets
Used where access to both sides for riveting is impossible.
Solid shank rivets
blind rivets
mechanically expanded rivets
self-plugging rivets
large blind side bearing surface, developed during the installation process.
Solid shank rivets
blind rivets
bulbed-cherrylock rivets
self-plugging rivets
Has a positive mechanical locking collar to resist
vibrations that cause the friction lock rivets to loosen and possibly fall out.
Solid shank rivets
blind rivets
bulbed-cherrylock rivets
self-plugging rivets
Provides excellent sheet take-up and hole-filling performance.
Solid shank rivets
blind rivets
Wiredraw cherrylock rivets
self-plugging rivets
LSA stands for:
(a)
Requires both sides to be accessible when installing.
Pin rivets
Taper-lok
Hi-tigue
Dill Lok-skrus and Rivets
Deutsch Rivets
The strongest special fasteners used in aircraft construction.
Pin rivets
Taper-lok
Hi-tigue
Dill Lok-skrus and Rivets
Deutsch Rivets
Contains a bead that encircles the bottom of its shank.
Pin rivets
Taper-lok
Hi-tigue
Dill Lok-skrus and Rivets
Deutsch Rivets
Similar in appearance and application to a Rivnut but they require more clearance on the blind side to accommodate the barrel.
Pin rivets
Taper-lok
Hi-tigue
Dill Lok-skrus and Rivets
Deutsch Rivets
High strength blind rivet used on late-model aircraft. High- strength.
Pin rivets
Taper-lok
Hi-tigue
Dill Lok-skrus and Rivets
Deutsch Rivets
(also called rigid fluid line) is used in stationary
applications and where long, relatively straight runs are possible.
(a)
generally used with moving parts or where the hose is subject to considerable vibration.
(a)
used extensively in aviation fluid applications.
Copper tubing
aluminum alloy tubing
steel tubing
titanium tubing
used for general-purpose lines of low or negligible fluid pressures, such as instrument lines and ventilating conduits.
Copper tubing
aluminum alloy tubing
steel tubing
titanium tubing
used for general-purpose lines of low or negligible fluid pressures, such as instrument lines and ventilating conduits.
Copper tubing
aluminum alloy tubing
steel tubing
titanium tubing
used extensively in high-pressure hydraulic systems (3 000 psi or more) EX. landing gear, flaps, brakes, and in fire zones.
Copper tubing
aluminum alloy tubing
steel tubing
titanium tubing
This type of tubing and fitting is used extensively in the transport category and high-performance aircraft hydraulic systems for pressures above 1 500 psi.
Copper tubing
aluminum alloy tubing
steel tubing
titanium tubing
Standard AN fittings are identified by their ___ or ___ color.
(a)
are colored black.
AN Steel fittings
AN Aluminum fittings
Aluminum bronze fittings
are colored blue.
AN Steel fittings
AN Aluminum fittings
Aluminum bronze fittings
are cadmium-plated and natural in appearance.
AN Steel fittings
AN Aluminum fittings
Aluminum bronze fittings
(a) threads are similar to those used in ordinary plumbing and are tapered, both internal and external.
male thread
external
internal
Do not use lubricants on (a) lines.
Machine threads have no ___ capability and are similar to those used on common nuts and bolts.
sealing
tapering
Machine threads have no ___ and will not form a fluid-tight seal.
sealer
taper
___ fittings are designed primarily for high pressure (3,000 psi) hydraulic systems that may be subjected to severe vibration or fluctuating pressure.
flareless
swagged
create a permanent connection that is virtually maintenance free.
flareless
swagged
are standard fittings with a shape memory alloy, Tinel, The sleeve is manufactured 3 percent smaller, frozen in liquid nitrogen, and expanded to 5 percent larger than the line.
cryofit
swagged
is used in aircraft fluid systems to connect moving parts with stationary parts in locations subject to vibration or where a great amount of flexibility is needed.
flexible hose
extended hose
is never used in the construction of flexible fluid lines.
pure rubber
synthetic
is a synthetic rubber compound that has excellent resistance to petroleum products.
Buna-N
Neoprene
Butyl
is a synthetic rubber compound with an acetylene base. Not as good as Buna-N but has better abrasive resistance
Buna-N
Neoprene
Butyl
is a synthetic rubber compound made from petroleum raw materials. It is an excellent material to use with phosphate ester base hydraulic fluid (Skydrol).
Buna-N
Neoprene
Butyl
Lines conveying fuel
Flam
Toxic
Phdan
lines containing toxic materials
Flam
Toxic
Phdan
Lines containing physically dangerous materials, such as oxygen, nitrogen, or Freon.
Flam
Toxic
Phdan
are generally placed on both ends of a line and at least once in each compartment through which the line runs.
tapes and decals
identificatiom markers
paint or tags
are placed immediately adjacent to each valve, regulator, filter, or other accessory within a line.
tapes and decals
identificatiom markers
paint or tags
are used, location requirements are the same as for tapes and decals.
tapes and decals
identificatiom markers
paint or tags
(a) is used on lines in engine compartments, where there is the possibility of tapes, decals, or tags being drawn into the engine induction system.
