How to work with metal
  • 1. What is the primary safety concern when working with metal?
A) Temperature regulation
B) Noise levels
C) Proper clothing
D) Eye protection
  • 2. Which of the following metals is commonly used in construction due to its strength and durability?
A) Aluminum
B) Steel
C) Copper
D) Lead
  • 3. What process is used to join two metal pieces by melting and fusing them together?
A) Gluing
B) Soldering
C) Brazing
D) Welding
  • 4. Which tool is best for cutting thick metal sheets?
A) Knife
B) Stapler
C) Plasma cutter
D) Scissors
  • 5. What is the purpose of annealing metal?
A) To increase corrosion resistance
B) To increase hardness and reduce ductility
C) To reduce hardness and increase ductility
D) To add color to the metal
  • 6. What is the term for removing material from metal using a rotating cutter?
A) Grinding
B) Filing
C) Milling
D) Drilling
  • 7. Which of these is a common abrasive used for polishing metal?
A) Sugar
B) Salt
C) Emery
D) Vinegar
  • 8. What is galvanization used for?
A) Increasing strength
B) Improving aesthetics
C) Corrosion prevention
D) Reducing weight
  • 9. What type of drill bit is best for drilling through hardened steel?
A) Cobalt drill bit
B) Auger bit
C) Spade bit
D) Wood drill bit
  • 10. What is the process of shaping metal by hammering called?
A) Casting
B) Extrusion
C) Machining
D) Forging
  • 11. Which gas is commonly used in MIG welding?
A) Hydrogen
B) Oxygen
C) Argon
D) Nitrogen
  • 12. What is the purpose of using cutting fluid when machining metal?
A) To make the metal more brittle
B) To add color to the metal
C) To increase the metal's hardness
D) To cool and lubricate the cutting tool
  • 13. Which tool is used to create threads inside a hole?
A) Tap
B) File
C) Reamer
D) Die
  • 14. What is the process of coating a metal with a thin layer of another metal called?
A) Plating
B) Galvanizing
C) Tempering
D) Annealing
  • 15. What is the function of a vise?
A) To weld metal
B) To hold metal securely
C) To measure metal thickness
D) To cut metal
  • 16. Which metal is known for its high electrical conductivity?
A) Steel
B) Copper
C) Aluminum
D) Titanium
  • 17. What type of saw is designed for cutting intricate shapes in metal?
A) Circular saw
B) Rip saw
C) Chainsaw
D) Jeweler's saw
  • 18. What safety precaution should be taken when grinding metal?
A) Wearing shorts
B) Wearing a face shield
C) Using a damp cloth
D) Working bare handed
  • 19. What is 'work hardening' in metalworking?
A) Increased flexibility due to bending
B) Corrosion due to exposure
C) Increased hardness due to deformation
D) Decreased hardness due to heating
  • 20. What tool is used to measure external diameters precisely?
A) Protractor
B) Ruler
C) Caliper
D) Tape measure
  • 21. What is the purpose of tempering steel after hardening?
A) To prevent corrosion
B) To increase hardness further
C) To change the color
D) To reduce brittleness
  • 22. What does the term 'gauge' refer to when discussing sheet metal?
A) Thickness
B) Width
C) Length
D) Density
  • 23. Which process uses heat to join metal parts, without melting the base metals?
A) Forging
B) Welding
C) Soldering
D) Casting
  • 24. What is the best way to remove rust from metal?
A) Applying water
B) Ignoring it
C) Sandblasting
D) Painting over it
  • 25. What is the main advantage of using aluminum?
A) High conductivity
B) Light weight
C) Low cost
D) High strength
  • 26. What is a countersink used for?
A) Cutting threads
B) Removing burrs
C) Drilling large holes
D) Creating a recess for screw heads
  • 27. Which type of welding is best for thin metal sheets?
A) Arc welding
B) Stick welding
C) TIG welding
D) MIG welding
  • 28. What is the purpose of pickling metal?
A) Adding color
B) Removing surface oxides
C) Preventing rust
D) Increasing strength
  • 29. What is the best way to prevent metal from warping when welding?
A) Using proper clamping techniques
B) Welding quickly
C) Ignoring the heat
D) Using high heat
  • 30. What is the purpose of a center punch?
A) To tighten screws
B) To remove rust
C) To cut metal
D) To mark the location for a drill hole
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