Engineering Materials Quiz! Trivia Questions Test

38 Questions | Attempts: 55
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    Fretting corrosion is most likely to occur 

    • When two surfaces fit tightly together but can move relative to one another
    • Only when two dissimilar metals are in contact
    • When two surfaces fit loosely together and can move relative to one another
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About This Quiz

In the world of engineering, the most commonly used materials are plastics and metals. If you are on the journey of becoming an engineer, you are expected to be conversant with the materials and tools you will use or come across. How about you test your memory and understanding by taking the challenging quiz below. All the best as you tackle it!

Engineering Materials Quiz! Trivia Questions Test - Quiz

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  • 2. 

    Titanium is used in the Aerospace industry because of its? 

    • Excellent strength at high temperature

    • Excellent hardness at high temperature

    • Excellent weldability at high temperature

    Correct Answer
    A. Excellent strength at high temperature
  • 3. 

    Alloys that are described as "refractories" will: 

    • Maintain their mechanical properties at very high temperatures

    • Lose their mechanical properties at very high temperatures

    • Maintain their mechanical properties at very low temperatures

    Correct Answer
    A. Maintain their mechanical properties at very high temperatures
  • 4. 

    A "step" curing process is carried out: 

    • Automatically by a programmed controller

    • By installing the repair in a vacuum bag

    • Manually by an operator

    Correct Answer
    A. Manually by an operator
  • 5. 

    An accelerator is mixed with the: 

    • Catalyst first before mixing it into the resin

    • Resin before adding the catalyst

    • Resin after the catalyst has been mixed into it

    Correct Answer
    A. Resin before adding the catalyst
  • 6. 

    The reheating of a heat-treated metal, such as with a welding torch.

    • Has little or no effect on a metal's heat treated characteristics

    • Has a cumulative enhancement effect on the original heat treatment

    • Can significantly alter a metal's properties in the reheated

    Correct Answer
    A. Can significantly alter a metal's properties in the reheated
  • 7. 

    A problem experienced when drilling aramids is that the: 

    • Ends of the fibres "fuzz" the edges of the hole

    • Hole tends to be oversized

    • Drill quickly overheats and blunts

    Correct Answer
    A. Ends of the fibres "fuzz" the edges of the hole
  • 8. 

    Quantum mechanics does NOT use which of the following to study atoms. 

    • Probability theories

    • Energy levels

    • Shell strengths

    Correct Answer
    A. Probability theories
  • 9. 

    Why is it necessary to use flux in all silver soldering operations? 

    • To chemically clean the base metal of oxide film

    • To prevent overheating of the base metal

    • To increase heat conductivity

    Correct Answer
    A. To chemically clean the base metal of oxide film
  • 10. 

    The temperatures and times to be used for the heat treatment of metals are: 

    • Contained in heat treatment tables issued by the standards authority.

    • Contained in the material specification sheet

    • Marked on the material as a temper code

    Correct Answer
    A. Contained in the material specification sheet
  • 11. 

    Which of the following is NOT a result of increasing carbon in steel?

    • Decreased weldability

    • Increase machinability

    • Increased tensile strength

    Correct Answer
    A. Increase machinability
  • 12. 

    Filiform corrosion around fasteners is recognised by: 

    • Delamination of the surface layers.

    • Crevices forming around the fasteners

    • "worm-like" tracks under the paint

    Correct Answer
    A. "worm-like" tracks under the paint
  • 13. 

    The aluminum alloys used in aircraft construction are usually hardened by which method? 

    • Cold working

    • Aging

    • Heat treatment

    Correct Answer
    A. Heat treatment
  • 14. 

    A "step" curing process is carried out: 

    • Automatically by a programmed controller

    • By installing the repair in a vacuum bag

    • Manually by an operator

    Correct Answer
    A. Manually by an operator
  • 15. 

    Two molecules having the same composition but different configurations are called? 

    • Polymers

    • Multimers

    • Isomers

    Correct Answer
    A. Isomers
  • 16. 

    A property of "Invar" steel is that it: 

    • Has an extremely low coefficient of expansion.

    • Has very high permeability.

    • Self-hardens under mechanical pressure

    Correct Answer
    A. Has an extremely low coefficient of expansion.
  • 17. 

    Which of the following iron ores contains the most percentage of iron? 

    • Magnetite.

    • Hermatite.

    • Taconite.

    Correct Answer
    A. Magnetite.
  • 18. 

    Which of the following describes the creep condition? 

    • Slow breakdown of plastic material subjected to repeated normal loads over extended period

    • Slow stretching of a plastic material subjected to a tensile load over time

    • Rapid breakdown of a plastic material subjected to repeated normal loads over extended period

    Correct Answer
    A. Slow stretching of a plastic material subjected to a tensile load over time
  • 19. 

    Oxidation in welds will NOT cause which of the following condition? 

    • Difficulty in fusion

    • Inclusion in joints

    • Increase in ductility

    Correct Answer
    A. Increase in ductility
  • 20. 

    According to SAE and AISI, what is the percentage of carbon in 8620 steel? 

    • 0.8%

    • 0.6%

    • 0.2%

    Correct Answer
    A. 0.2%
  • 21. 

    One of the advantages of inspecting an aluminum propeller utilising dye-penetrant inspection procedure is that: 

    • Defects just below the surface are indicated

    • It shows whether visible lines and other marks are actually cracks rather than scratches

    • It indicates overspeed condition

    Correct Answer
    A. Defects just below the surface are indicated
  • 22. 

    Which of these converters will still contain many impurities after the steel is produced? 

    • Bessemer converter

    • Electric arc furnace

    • Oxygen lance converter

    Correct Answer
    A. Bessemer converter
  • 23. 

    If the thickness of a beam is trebled its stiffness increases by a factor of: 

    • 3

    • 6

    • 9

    Correct Answer
    A. 9
  • 24. 

    What is the major alloying element in the copper alloy called brass? 

    • Phosphorus

    • Tin

    • Zinc

    Correct Answer
    A. Zinc
  • 25. 

    Which of the following is NOT a type of bonding between atoms? 

    • Ionic bond

    • Lattice bond

    • Van der Waals forces

    Correct Answer
    A. Lattice bond
  • 26. 

    Which of the following additive is added to a coating to control the gloss and adjust the viscosity? 

    • Antiskin

    • Extender

    • Catalyst

    Correct Answer
    A. Extender
  • 27. 

    A pictorial representation of critical heat-treating temperatures is called a? 

    • Cycle diagram

    • Alloy absorption diagram

    • Phase diagram

    Correct Answer
    A. Phase diagram
  • 28. 

    Sodium chloride is an example of which type of bonding? 

    • Ionic bonding

    • Covalent bonding

    • Metallic bonding

    Correct Answer
    A. Ionic bonding
  • 29. 

    Which of the following method can produce 99.9% pure copper? 

    • Smelting

    • Flotation

    • Electroplating

    Correct Answer
    A. Electroplating
  • 30. 

    The catalyst used for curing polyester resins is:

    • Styrene based

    • Peroxide based

    • Epoxy based

    Correct Answer
    A. Peroxide based
  • 31. 

    When annealing a 2XXX series aluminum alloy, it should be cooled: 

    • Rapidly by quenching in cold water.

    • In air or by quenching

    • At a slow controlled rate.

    Correct Answer
    A. At a slow controlled rate.
  • 32. 

    The type of corrosion mainly affecting extruded aluminium alloy components is: 

    • Crevice corrosion

    • Filiform corrosion

    • Exfoliation corrosion

    Correct Answer
    A. Exfoliation corrosion
  • 33. 

    Which of these materials is the most cathodic? 

    • Zinc

    • 2024 aluminum alloy

    • Stainless steel

    Correct Answer
    A. Stainless steel
  • 34. 

    Which of the following is NOT true of the alloying of Aluminum?

    • Copper for machinability

    • Carbon for weldability

    • Silicon for casting

    Correct Answer
    A. Carbon for weldability
  • 35. 

    Alcad is a metal consisting of

    • Aluminum alloy surface layers and a pure aluminum core

    • Pure aluminum surface layers on an aluminum alloy core

    • A homogenous mixture of pure aluminum and aluminum alloy

    Correct Answer
    A. Pure aluminum surface layers on an aluminum alloy core
  • 36. 

    Tungsten and chromium will harden carbon steel by: 

    • Dissolving in ferrite and creating a fine grain structure

    • Distorting the grain structure

    • Reacting with carbon and forming carbide

    Correct Answer
    A. Reacting with carbon and forming carbide
  • 37. 

    What method of magnetic particle inspection is used most often to inspect aircraft parts for invisible cracks and other defects? 

    • Residual

    • Inductance

    • Continuous

    Correct Answer
    A. Continuous
  • 38. 

    Microbiological growths in a fuel tank primarily cause: 

    • Inter-granular corrosion in the tank floor

    • Exfoliation corrosion on the tank floor.

    • Shielding corrosion on the tank floor

    Correct Answer
    A. Shielding corrosion on the tank floor

Quiz Review Timeline (Updated): Mar 21, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 24, 2009
    Quiz Created by
    Cyberedward
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