EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2026 |INSTANT
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1. What is the primary purpose of a die in manufacturing?
A. To heat metal
B. To cut or shape material
C. To measure voltage
D. To weld components
Rationale: A die is used in forming operations such as stamping,
cutting, or shaping materials into specific forms.
Correct Answer: B
2. Which material is most commonly used for cutting tools in
tool and die work?
A. Mild steel
B. Aluminum
C. High-speed steel (HSS)
D. Copper
Rationale: HSS retains hardness at high temperatures, making it
ideal for cutting tools.
Correct Answer: C
,3. What does “tolerance” refer to in machining?
A. Machine speed
B. Allowed variation in dimension
C. Tool hardness
D. Cutting fluid type
Rationale: Tolerance defines acceptable limits of variation in a
manufactured part.
Correct Answer: B
4. Which instrument is used to measure internal dimensions
accurately?
A. Micrometer
B. Vernier caliper
C. Bore gauge
D. Steel rule
Rationale: A bore gauge is specifically designed for measuring
internal diameters.
Correct Answer: C
5. What is the purpose of heat treatment in tool making?
A. Improve color finish
B. Increase hardness and strength
,C. Reduce weight
D. Increase electrical conductivity
Rationale: Heat treatment alters metal properties to improve
hardness and durability.
Correct Answer: B
6. Which process is used to remove sharp edges from
machined parts?
A. Grinding
B. Deburring
C. Casting
D. Forging
Rationale: Deburring removes sharp edges or unwanted
material after machining.
Correct Answer: B
7. What is the main function of a punch in die work?
A. Hold material
B. Cut or shape material
C. Lubricate parts
D. Measure force
Rationale: A punch forces material into or through a die to
form shapes.
Correct Answer: B
, 8. Which tool is used to check flatness of a surface?
A. Dial indicator
B. Micrometer
C. Height gauge
D. Caliper
Rationale: A dial indicator detects small surface variations to
check flatness.
Correct Answer: A
9. What is annealing?
A. Hardening metal
B. Softening metal by heating and cooling slowly
C. Cutting metal
D. Painting metal
Rationale: Annealing relieves internal stresses and softens
metal.
Correct Answer: B
10. What is the function of a jig?
A. Cuts metal
B. Holds and guides tools
C. Measures temperature
D. Hardens steel