WorksheetsReview Quiz
Total questions: 72
Worksheet time: 36mins
Metal ability to resist opposing forces is
Tension
Torsion
Shear
Tensile strength measure in
pounds per square inch
pounds per square feet
pounds per square foot
Main constituent which makes up ferrous metal is
iron
steel
aluminium
Purpose of case hardening technique is to
produce a hard case over a tough core.
reduce the carbon in the steel.
introduce carbon into the steel.
Hardness test that measure ball indentation diameter called
Vickers
Brinell
Rockwel
the main property of pure aluminum?
reasonably resistant to corrosion
highly resistant to corrosion.
not resistant to corrosion
Main aspect of selecting titanium alloys in aircraft is
it is cheap to manufacture.
it is corrosion resistant and heavy.
it has a high strength to weight ratio
Ultimate tensile strength?
The maximum strength to resist permanent deformation.
The minimum strength to resist deformation.
The maximum strength to resist from being fractured.
A material ability to be bent, formed or shaped without cracking or breaking is called
Malleability
Ductility
Elasticity
Aluminium alloyed primarily with magnesium is
5025
7075
2024
Common core will be use in repairing a composite structure
Round Core
Hexagon Core
Rectangular Core
When two or more different metallic materials are bonded together, the process known as
composite material.
a thermosetting compound.
a bonded alloy
Most preferable method to detect delamination of a composite structure is
Eddy current test
Acoustic Tap test
High Voltage X ray
The advantage of thermoplastic material is
Can be reheat and form once
not effected even low temperature
Can be reheat and form more than once
Preferred material commonly used for a firewall is
Aramid (Kevlar) fibres.
Carbon/graphite fibres.
Ceramic fibres
Type of wood commonly used as an aircraft structure is
Western hemlock
Sitka spruce
White pine
Tool to be used, when inspecting clearance of the bonded joints of a wooden aircraft assembly
Feeler Gauge
Plastic Screwdriver
Sharp tools
Usable life of the glue from the time it is mixed until the time it must be used is called as
Pot Life
Cure Life
Shelf Life
What is the main factor to determine the airworthiness of the fabric covering
Cost
weight
Strength
Common fabric material used for aircraft covering is
Silk.
Polyester.
Nylon
Fabric orientation that runs at 45 degree angle (diagonal)
Weft
Warp
Bias
Other name of oxidation is
Galvanic corrosion
Surface corrosion
Dry corrosion
Galvanic corrosion is usually caused by
incorrect heat treatments on incorrect alloying.
cyclic stressing and improper treatment.
improper joining of two dissimilar metals.
The best way to shield an iron from oxidation
Formation of an oxide film
Lubricate with mineral oil
Alclad application
Intergranular corrosion is a result of
improper assembled components.
improper heat treatment or alloying process
dissimilar metal in contact.
As figure shown, What is the type of corrosion
Pitting
Filiform
Exfoliation
Corrosion on aluminium and magnesium alloy identified by
White grayish powdery
Greenish Powdery
Brownish Powedery
Corrosion on copper and its alloy identified by
Red in color
Green in color
white in color
Two surfaces are joined together but can slide against each other, what is more likely type of corrosion will take place
Stress Corrosion
Fretting Corrosion
Filiform Corrosion
A female screw thread is formed by
cutting a helical groove into the surface of a round bar
cutting a helical groove in a cylindrical hole
cutting a twisted groove in a cylindrical hole
Buttress threads type are used
on nuts and bolts.
to transmit power in both directions.
to transmit power on one direction.
Most bolts and nuts used in aviation is generally a
buttress thread
V thread
round thread.
A male screw thread is formed by
cutting a helical groove into the surface of a round bar
cutting a helical groove in a cylindrical hole
cutting a twisted groove in a cylindrical hole
Correct method to tighten a bolt and nut assembly is by
turning bolt and nut at once.
turning the bolt on the nut.
turning the nut on the bolt.
AN use in aircraft hardware stand for
American National
AirForce Navy
Airworthiness Notices
MS stand for
Malaysia Standard
Military Spec
Military Standard
To remove broken stud use
Drill bit
Chisel
Ezy out
Clevis pin commonly found in the
electrical cable system
flight control cable system
hydraulic cable system
How many times cotter pin can be used?
once only
twice only
As long useable
How many time locking plate can be used
Until all the tabs have been broken off.
As long as it remains serviceable.
Once only.
Both bolts are correctly wire locked when
both A and B are right hand threads.
A is a right hand thread and B is a left hand thread.
both A and B are left hand threads.
MS20426 rivet head type is
Countersunk
Universal
Round
A rivet head with no marking has the material code of
A
DD
AD
If D or DD rivets are not formed, and removed from the freezer in time, they
must be discarded.
must be re-heat treated before use.
can be re-heat treated once then discarded.
What is the proper rivet for riveting magnesium alloy
2117 aluminum alloy.
5056 aluminum alloy.
1100 aluminum alloy.
main reason for replacing copper tubing to aluminium tubing is
it requires annealing process.
it is prone to corrosion.
it has high tendency to crack.
“PHDAN” marked on lines indicates the carrying of
Nitrogen
Oxygen
Fuel
All metal tubing fluid lines are sized by wall thickness and
Inside Diameter
Outside diameter
Mean diameter
Type of flexible fluid line suitable to carry phosphate Ester based oil such as Skydrol
Butyl
Neoprene
Buna-N
Most of the gas turbine engines rigid pipelines are made from
stainless steel.
aluminium alloy.
copper alloy.
Simplest technique to identify a stainless steel rigid tubing and aluminium tubing
Pressure test
Bending test
Magnet test
Flexible hoses are usually selected by
maximum pressure.
minimum diameter.
overall length.
Test for the serviceability of a hydraulic hose by
Pressure test 2.0 x working pressure.
Pressure test 1.5 x working pressure.
Pressure test 1.0 x working pressure.
Leaks found after functional test during specific time, what immediate action must be taken if leaks are found at the end fitting after functional test?
Additional tighten of the nut 1/6 turn and re run the test
Replace the pipeline and fittings and re run the test
Additional tighten of the nut 1/2 turn and re run the test
flare less fitting is designated to provide
load free attachments.
contaminant free attachments.
leak free attachments.
meaning of “free length” in spring
The thickness of spring coil
The length of spring without load applied
The length of spring with load applied
Springs that provide for end attachment?
Tension spring
Compression spring
Torsion spring
Bearing is commonly used in an aircraft wheel construction
Needle roller bearing.
Tapered roller bearing.
Caged ball bearing.
Ball bearing construction, the purpose of race housing is to
provide support to carry load.
prevent from corrosion.
ease the lubrication.
Needle roller bearings are commonly being used
in high speed operations.
where fluid damped bearing is used
in restricted gap areas.
Power transmission gears are usually made of
high stainless steel.
chromium-molybdenum steel.
magnesium alloy.
Function of bi planer block
To prevent chain off track from sprocket.
To change the direction of chain by 90° axis.
To change the rotation of chain by 90° axis.
Procedure to be observed when storing a chain is to
Hang so they do not kink.
Lay uncoiled and flat in greaseproof paper.
Oiled and coiled in greaseproof paper.
What is the type of cable used for lightly loaded control system that relies on the cable that works in tension only is
Bowden cable
Teleflex cable
Coaxial cable
7 x 16 cable is an extra flexible cable consisting of
7 strands of 16 wires.
7 cables having 16 turns per inch.
7 wire of 16 strand
The standard practice to check the turnbuckles are in safe condition is to
use the inspection hole or count the threads showing not more than 3 thread
ensure that the turnbuckle cannot be turned by hand.
make sure no threads are showing at either end of the turnbuckle
Purpose of ignition harnesses
Transmission of cylinder head temperature
Transmission of high voltage
Transmission of low power signal
The ground side of an electrical power conductor is usually connected to a male connector
make installation of the connector easier.
reduce the chance of an accidental short.
reduce the chance of corrosion affecting the pins.
Connectors of of electrical cables consist of two parts and they are
barrel and terminal.
socket or receptacle and a plug.
insulated and in insulated terminal.
When the center part of turnbuckle is rotated, the cable length will
increase or decrease the cable length.
increase or decrease the cable backlash.
increase or decrease the cable tension.
All pulleys are provided with guards that prevent the cable
jumping out of the groove should it become slack.
misaligned in cables control run.
deviate more than two degrees of either side.
The cables of a control run is supported to prevent foul the airframe structure by
cable guide.
fairlead.
cable sleeve
