SS3 Third Term Metal Work Past Questions And Answers

 

Metal Work questions for Senior Secondary School 3, Third Term:

 

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

 

A) Enlarging existing holes

B) Creating pilot holes

C) Cutting external threads

D) Shaping metal bars

Answer: A) Enlarging existing holes

Question: In metal casting, what is the purpose of a riser?

 

A) Increase casting speed

B) Enhance surface finish

C) Prevent shrinkage cavities

D) Shape the mold

Answer: C) Prevent shrinkage cavities

Question: Which metalworking process involves heating metal to a specific temperature and then slowly cooling it to relieve internal stresses?

 

A) Normalizing

B) Hardening

C) Quenching

D) Tempering

Answer: A) Normalizing

Question: What is the purpose of a broaching tool in metalwork?

 

A) Creating internal threads

B) Shaping irregular contours

C) Removing burrs

D) Welding seams

Answer: B) Shaping irregular contours

Question: Which type of welding is commonly used for joining dissimilar metals?

 

A) Gas welding

B) TIG welding

C) MIG welding

D) Resistance welding

Answer: D) Resistance welding

Question: What is the primary function of a tap wrench in metal threading?

 

A) Hold the workpiece in place

B) Tighten bolts

C) Rotate the tap during threading

D) Measure thread pitch

Answer: C) Rotate the tap during threading

Question: In metalwork, what does the term “stress relief” refer to?

 

A) Increasing material hardness

B) Reducing internal stresses

C) Enhancing electrical conductivity

D) Creating surface finishes

Answer: B) Reducing internal stresses

Question: Which metal forming process involves stretching a metal sheet over a die to create complex shapes?

 

A) Spinning

B) Bending

C) Deep drawing

D) Punching

Answer: C) Deep drawing

Question: What is the purpose of a tap guide in metal threading?

 

A) Hold the workpiece in place

B) Align the tap perpendicular to the workpiece

C) Measure thread pitch

D) Shape irregular contours

Answer: B) Align the tap perpendicular to the workpiece

Question: Which metalwork process involves immersing a metal object in a molten zinc bath to provide corrosion resistance?

 

A) Electroplating

B) Galvanizing

C) Anodizing

D) Case hardening

Answer: B) Galvanizing.