SS1 Third Term Metal Work Past Questions And Answers
Here they are;
Question: What is the primary purpose of annealing metal?
A) Hardening
B) Softening
C) Strengthening
D) Corrosion
Answer: B) Softening
Question: Which metal is commonly used for making electrical wires?
A) Aluminum
B) Copper
C) Iron
D) Zinc
Answer: B) Copper
Question: What is the process of coating iron with a layer of zinc to prevent corrosion called?
A) Galvanizing
B) Alloying
C) Anodizing
D) Tempering
Answer: A) Galvanizing
Question: In metalworking, what does the term “forging” refer to?
A) Melting metal
B) Shaping metal through heat and pressure
C) Grinding metal
D) Polishing metal
Answer: B) Shaping metal through heat and pressure
Question: What is the primary alloying element in stainless steel?
A) Iron
B) Chromium
C) Copper
D) Nickel
Answer: B) Chromium
Question: Which metal is commonly used in the production of aircraft due to its lightweight properties?
A) Aluminum
B) Gold
C) Lead
D) Silver
Answer: A) Aluminum
Question: What is the purpose of heat treatment in metalworking?
A) Increase conductivity
B) Improve hardness and strength
C) Decrease density
D) Enhance corrosion resistance
Answer: B) Improve hardness and strength
Question: What is the function of flux in soldering?
A) Increase conductivity
B) Clean metal surfaces
C) Add color to metal
D) Reduce melting point
Answer: B) Clean metal surfaces
Question: Which metal is known for its resistance to rust and corrosion?
A) Iron
B) Aluminum
C) Stainless steel
D) Copper
Answer: C) Stainless steel
Question: What is the main component of bronze?
A) Copper and zinc
B) Iron and carbon
C) Aluminum and magnesium
D) Gold and silver
Answer: A) Copper and zinc
Question: What type of metal is obtained from bauxite ore?
A) Copper
B) Aluminum
C) Iron
D) Zinc
Answer: B) Aluminum
Question: Which process involves cutting or shaping metal using a rotating abrasive wheel?
A) Welding
B) Machining
C) Casting
D) Annealing
Answer: B) Machining
Question: What is the purpose of quenching in heat treatment?
A) Increase hardness
B) Reduce conductivity
C) Enhance ductility
D) Improve corrosion resistance
Answer: A) Increase hardness
Question: Which metal is commonly used for making coins?
A) Gold
B) Silver
C) Copper
D) Aluminum
Answer: C) Copper
Question: What is the primary purpose of electroplating in metalwork?
A) Increase weight
B) Enhance conductivity
C) Improve appearance and corrosion resistance
D) Reduce melting point
Answer: C) Improve appearance and corrosion resistance
Question: Which tool is commonly used for measuring the thickness of metal sheets?
A) Micrometer
B) Vernier caliper
C) Protractor
D) Compass
Answer: A) Micrometer
Question: What is the primary advantage of using aluminum in the automotive industry?
A) High cost
B) Low density
C) Pronounced magnetic properties
D) Rapid corrosion
Answer: B) Low density
Question: Which term refers to the process of removing rust from metal surfaces?
A) Galvanizing
B) Tempering
C) Pickling
D) Annealing
Answer: C) Pickling
Question: What is the primary function of a lathe in metalworking?
A) Welding
B) Cutting and shaping
C) Joining metals
D) Polishing
Answer: B) Cutting and shaping
Question: Which metal is a common component of solder used in electronics?
A) Copper
B) Lead
C) Aluminum
D) Iron
Answer: B) Lead.
