Manufacturing Processes
JKSSB Junior Engineer (Mechanical) · Material Science & Production Engineering · 25 practice questions with answers and explanations: 7 Easy, 18 Medium, 0 Hard.
Sample questions
Sample Easy question 1
Which of these is a fusion welding process?
- Resistance spot welding
- Cold pressure welding
- Arc welding
- Forge welding
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Answer: C. In fusion welding the parent metal is melted.
Sample Easy question 2
Powder metallurgy involves which steps?
- Melting, pouring and cooling
- Turning, drilling and grinding
- Blending, compacting and sintering
- Heating, hammering and quenching
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Answer: C. It is used for self-lubricating bearings and carbide tools.
Sample Easy question 3
Arc welding uses as its heat source:
- friction
- an explosion
- a gas flame
- an electric arc
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Answer: D. The arc between electrode and work produces the high temperature.
Sample Medium question 4
The welding process that uses a flux-coated consumable electrode is:
- TIG welding
- gas tungsten arc welding
- shielded metal arc welding
- resistance spot welding
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Answer: C. The coating forms a gas shield and slag in SMAW.
Sample Medium question 5
In powder metallurgy, heating the compacted powder to a temperature below its melting point to bond the particles is called:
- tempering
- annealing
- sintering
- casting
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Answer: C. Sintering bonds the particles by diffusion.
Sample Medium question 6
Hot working of metals is carried out:
- above the recrystallisation temperature
- below the recrystallisation temperature
- at absolute zero
- only at room temperature
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Answer: A. At that temperature, strain hardening is removed as the metal deforms.