SS2 First Term Metal Work Past Questions and Answers (Objective and Theory)

 

20 multiple-choice questions for SS2 Metal Work, along with options and answers:

 

Section A: Multiple Choice Questions

Question: What is the primary purpose of tempering steel?

 

A) Increase hardness

B) Reduce brittleness

C) Enhance corrosion resistance

D) Improve conductivity

Answer: B) Reduce brittleness

Question: Which metal is commonly used for die casting?

 

A) Aluminum

B) Copper

C) Zinc

D) Iron

Answer: C) Zinc

Question: What is the main alloying element in stainless steel?

 

A) Nickel

B) Chromium

C) Manganese

D) Titanium

Answer: B) Chromium

Question: In metal forming, what process involves compressing metal between two rollers?

 

A) Extrusion

B) Forging

C) Rolling

D) Drawing

Answer: C) Rolling

Question: Which welding process uses a consumable electrode?

 

A) TIG welding

B) MIG welding

C) Stick welding

D) Gas welding

Answer: B) MIG welding

Question: What is the purpose of annealing in metalworking?

 

A) Increase strength

B) Reduce hardness

C) Relieve internal stresses

D) Improve conductivity

Answer: C) Relieve internal stresses

Question: Which metal is used as a protective coating for iron in galvanization?

 

A) Aluminum

B) Zinc

C) Copper

D) Nickel

Answer: B) Zinc

Question: What is the primary function of a lathe in metalworking?

 

A) Cutting

B) Joining

C) Bending

D) Shaping

Answer: A) Cutting

Question: Which heat treatment process involves heating metal to a high temperature and then cooling it rapidly?

 

A) Tempering

B) Annealing

C) Quenching

D) Normalizing

Answer: C) Quenching

Question: What is the primary purpose of a foundry in metalwork?

 

A) Welding

B) Casting

C) Forging

D) Machining

Answer: B) Casting

Question: In metal joining, what method uses a filler material with a melting point lower than the base metals?

A) Soldering

B) Brazing

C) Arc welding

D) Gas welding

Answer: B) Brazing

Question: Which metal is commonly used for making springs due to its elasticity?

A) Copper

B) Aluminum

C) Steel

D) Brass

Answer: C) Steel

Question: What is the primary advantage of powder metallurgy?

A) High production cost

B) Complex shapes

C) Limited material choices

D) Low density

Answer: B) Complex shapes

Question: Which type of corrosion occurs between two dissimilar metals in contact with an electrolyte?

A) Pitting corrosion

B) Galvanic corrosion

C) Crevice corrosion

D) Uniform corrosion

Answer: B) Galvanic corrosion

Question: Which non-destructive testing method uses sound waves to detect defects in metal?

A) Radiography

B) Ultrasonic testing

C) Magnetic particle testing

D) Dye penetrant testing

Answer: B) Ultrasonic testing

Question: What is the primary purpose of case hardening?

A) Increase hardness of the entire part

B) Improve corrosion resistance

C) Harden only the surface layer

D) Enhance ductility

Answer: C) Harden only the surface layer

Question: Which metal is an essential component of the alloy bronze?

A) Iron

B) Copper

C) Aluminum

D) Zinc

Answer: B) Copper

Question: What is the function of flux in welding?

A) Increase strength

B) Improve conductivity

C) Remove impurities

D) Enhance corrosion resistance

Answer: C) Remove impurities

Question: Which metal forming process involves shaping material by squeezing it between two dies?

A) Forging

B) Extrusion

C) Rolling

D) Drawing

Answer: A) Forging

Question: What is the primary purpose of shot peening in metalworking?

A) Increase hardness

B) Improve conductivity

C) Reduce fatigue failure

D) Enhance corrosion resistance

Answer: C) Reduce fatigue failure

Section B: Theory Questions

Explain the concept of heat treatment and its importance in metalworking.

 

Discuss the differences between ferrous and non-ferrous metals, providing examples of each.

 

Describe the process of electroplating and its applications in metal finishing.

 

Explain the principles of gas welding and its advantages over other welding processes.

 

Discuss the factors influencing the selection of materials in metalwork, considering specific applications.