1. Which of the following is classified as a non-ferrous light alloy?
Top of Form
Beryllium base
Zinc base
Tin base
Copper base
Bottom of Form 2. Of the following, which is considered the most important structural non-ferrous metal?
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Copper
Zinc
Tin
Aluminium
Bottom of Form
3. Aluminium cannot be used in most areas where vibrations combine with high stress. There are special care has to be taken to remove all stress raisers. Which below is considered a stress rasier?
Top of Form
A notch
A scratch
A sudden change of section
A notch and a scratch
All of the above
Bottom of Form 4. When applying the term annealed to pure aluminium it is interpreted to mean?
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Work hardenning
Re-crsytalisation
Stress releasing
Normalising
Bottom of Form 5. Which NDT method can be used to give general sorting of aluminium alloys?
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UT
MT
RT
ET
Bottom of Form 6. Which metal is most used in electrical work, wiring, etc?
Top of Form
Copper
Brass
Aluminium
Steel
Bottom of Form 7. It is generally understood that the principal alloying elements of brass are?
Top of Form
Copper and tin
Copper and zinc
Bronze and tin
Tin and zinc
Bottom of Form 8. Which two NDT methods are usually used to inspect Magnesium components?
Top of Form
Radiography and penetrant
Radiography and magnetic particle
Ultrasonic and magnetic particle
Ultrasonic and penetrant
Bottom of Form
9. Wrought zinc and its alloys have very little NDT inspection on them, when a material is plated with zinc it is known as?
Top of Form
Anodizing
Wrapping
Galvanising
Flashing
Bottom of Form 10. Thermoplasting can be?
Top of Form
Melted down and re-used without loss of properties
Softened by heat
Will char when heated
Melted down and re-used without loss of properties and softened by heat Bottom of Form 11. Thermosetting plastics are?
Top of Form
Rigid
Deteriorated by heat
Charred by heat
All of the above
Bottom of Form 12. Which of the following non-ferrous metals is classed as a light alloy?
Top of Form
Beryllium base
Zinc base
Tin base
All of the above
Bottom of Form 13. Which of the metals listed below has the highest strength to weight ratio?
Top of Form
Beryllium
Titanium
Aluminium
Zinc
Bottom of Form 14. One of the major drawbacks of magnesium alloys is?
Top of Form
Poor corrosion resistance
Notch sensitivity
High density
More expensive than using beryllium which exhibits similar properties Bottom of Form 15. Which of the following non-ferrous metals is almost exclusively die-cast?
Top of Form
Aluminium
Copper
Magnesium
Zinc
Bottom of Form 16. Cobalt is used as an alloying constituent in?
Top of Form
Bearing alloys
Solders
Permanent magnets
Dental alloys
Bottom of Form 17. Manufacturing is a term used generally to describe the ??? of a bulk material?
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Designing
Production
Shape changing
Casting
Bottom of Form 18. Which of the following is classed as a manufacturing process?
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Casting
Welding
Machining
Rolling
All of the above
Bottom of Form
19. Which of the following manufacturing processes is the most economical method of producing complex shapes?
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Casting
Forging
Rolling
Welding
Bottom of Form 20. In modern manufacturing industries which of the following factors are considered?
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Markets
Product life
Design
Manufacturing process
All of the above
Bottom of Form 21. Which of the following is required when making a sand casting?
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A mold
A pattern
A flask
All of the above
Bottom of Form 22. Shrinkage within a casting can occur in which of the following states?
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Liquid state
Solidification
Solid state
Solidification and solid state
All of the above
Bottom of Form 23. Pattern makers shrinkage occurs in?
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Liquid state of casting
Solidification state of casting
Solid state of casting
All of the above
Bottom of Form
24. When a change of wall thickness is required in a casting what would give the best design results?
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Sudden section change
Small radii
Large radii
All of the above
Bottom of Form 25. Metal is fed into the casting cavity through a ??? system?
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Flow system
Gating system
Pouring system
Riser system
Bottom of Form 26. Wells outside the normal finished casting are there to allow for?
Top of Form
Gas evolution
Sand erosion
Shrinkage
Airlocks
Bottom of Form 27. Directional solidification in Castings is helped by the use of?
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Cores
Feederheaders
Chills
Chaplets
Bottom of Form
28. Where holes or cavities are required in the finished casting a ??? is used in the modling stage?
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Chill
Ingate
Riser
Core
Bottom of Form 29. Green sand is a mixture of sand and?
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Clay
Silicon
Water
Clay and water
All of the above
Bottom of Form 30. The upper half of a flask is called?
Top of Form
A drag
A cope
A draft
A mould
Bottom of Form 31. Small metal supports which become part of the casting during pouring are called?
Top of Form
Chills
Chaplets
Cores
Risers
Bottom of Form
32. Which of the following casting processes is best used for small intricate casting - upto 2kg - requiring close tolerances?
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Centrifugal casting
Investment casting
Continuous casting
Permanent mold casting
Bottom of Form
33. The casting process which gives improved material density towrads the outside of teh mold is?
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Centrifugal casting
Investment casting
Continuous casting
Permanent mold casting
Bottom of Form 34. The casting process which produces bar is known as?
Top of Form
Centrifugal casting
Last wax process
Continuous casting
Plaster mold casting
Bottom of Form 35. Splashed metal entrapped by molten metal that does not re-fuse is called?
Top of Form
Hot tear
Chill
Inclusion
Cold shut
Bottom of Form 36. The bottom part of the flask is known as the?
Top of Form
Cope
Bottom board
Drag
Runner
Bottom of Form 37. Which of the following is used to give preferential solidification of castings?
Top of Form
Chills
Chaplets
Cores
None of the above
Bottom of Form
38. In the casting process what name is given to the part which is used to represent the finished item?
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The mould
The spruce
The pattern
The shell
Bottom of Form 39. The crystal structure of a casting adjacent to the mould wall will be?
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Fine equiaxed grains
Core equiaxed grains
Columnar grains
Dendritic
Bottom of Form 40. Shrinkage occuring in the casting process can be divided into how many stages?
Top of Form
1
2
3
4
Bottom of Form