Metal work waec past questions and answers

Metal work waec past questions and answers

Here are 20 multiple-choice metalwork questions:

What is the process of heating metal to a high temperature and then cooling it slowly to make it tougher called?

a) Annealing

b) Tempering

c) Quenching

d) Forging

Answer: a) Annealing

Which tool is used for shaping metal by hammering or pressing?

a) Lathe

b) Anvil

c) Tongs

d) Chisel

Answer: b) Anvil

What is the name of the process where a metal is coated with a layer of zinc to prevent corrosion?

a) Galvanization

b) Oxidation

c) Electroplating

d) Alloying

Answer: a) Galvanization

Which metal is known for its high resistance to corrosion and is often used in marine applications?

a) Aluminum

b) Copper

c) Stainless steel

d) Brass

Answer: c) Stainless steel

Which welding technique uses a consumable electrode that also acts as the filler material?

a) TIG welding

b) MIG welding

c) Stick welding

d) Arc welding

Answer: b) MIG welding

What process involves heating two metal pieces until they melt and then pressing them together to form a joint?

a) Soldering

b) Brazing

c) Welding

d) Riveting

Answer: c) Welding

Which metal is the primary component of bronze?

a) Copper

b) Zinc

c) Iron

d) Nickel

Answer: a) Copper

What is the purpose of tempering steel?

a) To harden it

b) To soften it

c) To make it ductile

d) To increase its corrosion resistance

Answer: b) To soften it

Which tool is used for cutting metal by generating a high-speed stream of gas?

a) Plasma cutter

b) Bandsaw

c) Hacksaw

d) Grinder

Answer: a) Plasma cutter

What is the term for a metal's ability to be drawn, stretched, or formed without breaking?

a) Ductility

b) Hardness

c) Toughness

d) Brittleness

Answer: a) Ductility

Which process involves the removal of material from a metal surface using an abrasive wheel?

a) Milling

b) Turning

c) Grinding

d) Drilling

Answer: c) Grinding

What is the name of the metalworking process that involves cutting or shearing metal using a punch and die?

a) Stamping

b) Casting

c) Extrusion

d) Rolling

Answer: a) Stamping

Which metal is an excellent conductor of electricity and is commonly used in electrical wiring?

a) Aluminum

b) Silver

c) Lead

d) Titanium

Answer: b) Silver

What type of hammer is specifically designed for shaping metal on an anvil?

a) Claw hammer

b) Ball-peen hammer

c) Sledgehammer

d) Rubber mallet

Answer: b) Ball-peen hammer

Which process involves heating metal to a specific temperature and then cooling it quickly to harden it?

a) Annealing

b) Tempering

c) Quenching

d) Forging

Answer: c) Quenching

What metal is primarily used in galvanizing other metals to prevent rust?

a) Zinc

b) Tin

c) Lead

d) Nickel

Answer: a) Zinc

Which welding process uses a non-consumable tungsten electrode to create the weld?

a) MIG welding

b) TIG welding

c) Stick welding

d) Flux-cored arc welding

Answer: b) TIG welding

What is the process of joining two metal pieces by melting a filler metal into the joint called?

a) Soldering

b) Brazing

c) Welding

d) Riveting

Answer: b) Brazing

Which metal is a primary component of brass?

a) Copper

b) Zinc

c) Aluminum

d) Nickel

Answer: b) Zinc

What is the term for the resistance of a material to indentation or scratching?

a) Ductility

b) Toughness

c) Hardness

d) Brittleness

Answer: c) Hardness