- What temperature would steel be tempered at? -   At the annealing temperature
-   Above the annealing temperature
-   Below the annealing temperature
 
- At normal temperatures HC steel is harder because? -   it has more austenite
-   of the % of carbon in the granules
-   it has less austenite
 
- Nitriding is ? -   case hardening
-   anodising
-   tempering
 
- The annealing process on steel is required sometimes as it ? -   provides a corrosion resistant layer that prevents oxidation
-   relieves internal stress suffered after engineering processes
-   allows the material a greater stress per unit area
 
- The properties of pearlitic metal are that it is both ? -   strong but too and hard and brittle
-   soft and weak
-   strong without being brittle
 
- The socket section of an AN/MS connector is normally installed on ? -   either side of a circuit (makes no difference)
-   the ground side of the circuit
-   the power supply side of the circuit
 
- When installing coaxial cable, it should be secured along its entire length ? -   at 1-foot intervals
-   at 2-foot intervals
-   wherever the cable sags
 
- Solution treatment after manufacturers have performed it once can be carried out a further ? -   3 times
-   1 time
-   2 times
 
- When buffing surface of Aluminium Alloy, what material are you removing? -   Oxide layer
-   Aluminium
-   Alloy
 
- Why are aluminium alloys used on aircraft, instead of pure aluminium? -   Lighter
-   Corrosion resistant
-   Stronger
 
- The process of forming a pure layer of aluminium over an aluminium alloy is ? -   cladding
-   electroplating
-   metalizing
 
- Cast iron is ?
 The common bonding material for Tungsten Carbide is ?
 -   very malleable
-   tough
-   heavy and brittle
 
- What is a Rockwell tester used for ?
 aircraft will
 
 -   Tensile Testing
-   Hardness Testing
-   Fatigue Testing
 
- The symbol 'W' on a material indicates ? -   it is for use on aircraft mainplanes only
-   it has been solution treated and will respond effectively to precipitation treatment
-   it is for workshop use only
 
- Composition of silver solder is ? -   tin, lead, silver and antimony
-   tin, lead and silver
-   tin and lead
 
- Precipitation treating makes the metal ?
 
 -   Precipitation treating makes the metal
-   less strong and hard
-   harder, stronger and less ductile
 
- The time between removal from heat treatment furnace and quenching must be not more than ? -   05 seconds
-   10 seconds
-   15 seconds
 
- The metal which must not be heated in a salt bath is?
 
 -   magnesium alloy
-   duralumin
-   rivets made of alclad
 
- A material containing approximately 66% nickel and 33% copper is known as ? -   Nimonic
-   Invar
-   Monel metal
 
- Hooke's law states that, within the elastic region, elastic strain is?
 
 -   directly proportional to stress
-   directly opposite to stress
-   indirectly proportional to stress
 
- What type of a test involves stretching material until it breaks ?
 
 -   Fatigue Testing
-   Hardness Testing
-   Tensile Testing
 
- Two parts of the adhesive process are?
 
 -   wetting and gripping
-   wetting and setting
-   spreading and setting
 
- Polyester resin and glass fibre cloth, becomes ?
 
 -   PTFE
-   PVC
-   GRP
 
- A category of plastic material that is capable of softening or flowing when reheated is described as a ?
 
 -   thermoset
-   thermoplastic
-   thermocure
 
- The classification of high tensile strength fibreglass used in aircraft structures is ?
 
 -   G-glass
-   E-glass
-   S-glass
 
- Which of the following are generally characteristic of aramid fibre (Kevlar) composites ? -   High tensile strength, stiffness and ability to conduct electricity
-   Flexibility, stiffness and corrosive effect in contact with aluminium
-   High tensile strength and flexibility
 
- What tests are done on adhesive joints ? -   Impact and peel
-   Shear and peel
-   Impact and shear
 
- If you increase the amount of catalyst in a resin mixture ? -   the pot life will be decreased
-   the material will become weaker
-   the material will become stronger
 
- What is the largest hole in honeycomb repairable with microballoons ? -   2.54 inches
-   2.54 mm
-   2.54 cm
 
- What does MSDS stand for ? -   Metal Surface Dimension Sector
-   Material Safety Data Sheet
-   Maximum Structural Design System
 
- With what would you check the bonded joints of a wooden aircraft structure ?
 
 -   A screwdriver
-   A plastic strip
-   A feeler gauge
 
- Replacement of a wooden spar is ? -   only permitted by the manufacturer
-   a minor repair
-   a major repair
 
- A surface patch to a plywood structure may be a large as ? -   50 inch perimeter
-   50 inch diameter
-   50 sq.inch area
 
- The standard wood type for aircraft wood structures is ? -   douglas fir
-   spruce
-   pine
 
- Red heart and purple heart ? -   are harmless natural defects in wood
-   are types of hard-wood
-   are forms of decay in wood
 
- A faint line running across the grain of a wood spar generally indicates ? -   shear failure
-   compression failure
-   decay
 
- Lacing cord used on aircraft fabric covering must have a minimum breaking strength of ? -   40 lb
-   80 lb
-   120 lb
 
- Aircraft fabric lacing cord is reinforced with ? -   lanolin
-   epoxy
-   wax
 
- Which of the following is true regarding aircraft dope type ? -   Either type of dope may be applied over the top of any type of dope
-   Butyrate dope may be applied over the top of nitrate dope
-   Nitrate dope may be applied over the top of butyrate dope
 
- A retarder is added to aircraft dope to ? -   produce a smoother finish
-   to retard the application time
-   to extend the shelf life
 
- What width of finishing tape should be used on a tear in a fabric cover which is 10 inches long ? -   4 inches
-   6 inches
-   2 inches
 
- The threads per inch of Grade 'A' aircraft fabric is ?  -   60-64
-   110-115
-   80-84
 
- Corrosion caused by electrolytic action is the result of ? -   excessive anodization
-   contact between two unlike metals
-   the wrong quenching agent
 
- Exfoliation corrosion is sometimes referred to as ? -   sub-surface corrosion
-   filiform corrosion
-   layer corrosion
 
- Which is the following correct statement ?  -   Selenious acid is used for the re-protection of aluminium alloys
-   The chemical test for bronze is nitric acid which produces a white precipitate
-   All corrosion is a chemical action
 
- Corrosion control begins at the ? -   production stage
-   manufacturing stage
-   design stage
 
- Corrosion caused by galvanic action is the result of ? -   excessive anodization
-   contact between two unlike metals
-   excessive etching
 
- What are the signs of fretting corrosion ? -   Black powder or cocoa staining
-   Intergranular cracking
-   Flaking
 
- Magnesium alloy components are protected by ? -   an electro process
-   a chemical process
-   a painted process
 
- Corrosion at the grain boundaries is called ? -   filiform
-   fretting
-   intergrannular
 
- Anti-corrosion treatment used on Magnesium is ? -   chromating
-   electro-plating
-   phosphating
 
- The pitch of a screw thread is ? -   2 * crest to root
-   crest to root
-   crest to crest
 
- A metric screw thread angle is ? -   37 °
-   57 °
-   60 °
 
- What sort of surface treatment would you find on a magnesium casting ? -   Chromating
-   Phosphating
-   Anodizing
 
- Studs which have a size larger thread at one end are called ? -   plain studs
-   shouldered studs
-   stepped studs
 
- A dowel will take what loads ? -   torsion
-   tensile
-   shear
 
- UNF means ? -   union national fine
-   unified fine
-   united nations fine
 
- Aircraft bolts are usually manufactured with a ? -   class 3 fit for the threads
-   class 2 fit for the threads
-   class 1 fit for the threads
 
- A spring type washer when used on an aluminium component must be used ? -   with a tab washer
-   by itself
-   with a plain washer
 
- Taper pins are subject to what loads ? -   Shear
-   Compressive
-   Tensile
 
- How is a British aluminium rivet identified ? -   Violet anodic finish
-   Natural anodised finish
-   Black anodic finish
 
- An aluminium alloy L37 rivet identification is ? -   D embossed
-   O embossed
-   X embossed
 
- The length of solid rivets is in graduations of ? -   1/4 inch
-   1/8 inch
-   1/16 inch
 
- Countersunk rivets have two angles of countersink, these are ? -   100 - 115 degrees
-   125 - 135 degrees
-   100 -160 degrees
 
- A 'HUCK' rivet is similar in design to a ? -   dome head rivet
-   blind rivet
-   cherry rivet
 
- What type loads cause the most rivet failures ? -   Bearing
-   Head
-   Shear
 
- How are flexible hoses categorised ? -   By diameter
-   By maximum pressure
-   By length
 
- How would you test a hydraulic hose ? -   Pressure test 1.5 * working pressure
-   Pressure test 2.0 * working pressure
-   Pressure test 1.0 * working pressure
 
- Which material is a hydraulic fluid hose made from ? -   Rubber
-   Butyl
-   Teflon
 
- A 0.5 in. diameter pipe is to be joined using standard nuts and fittings. What coupling would you use ? -   AN8-8852-2
-   AN8-8852-8
-   AN8-8852-1
 
- A self aligning bearing is a ? -   angular bearing
-   precision bearing
-   radial bearing
 
- What type of gear would be used on a propeller reduction gearbox ? -   Bevel
-   Epicyclic
-   Split epicyclic