Manufacturing Processes

JKSSB Junior Engineer (Mechanical) · Technical Subjects (Mechanical) · 20 practice questions with answers and explanations: 6 Easy, 14 Medium, 0 Hard.

Sample questions

Sample Easy question 1

A core is used in casting to:

  1. Form internal cavities and holes
  2. Hold the pattern
  3. Strengthen the mould
  4. Cool the casting
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Answer: A. Cores are placed in the mould cavity before pouring.

Sample Easy question 2

Which of these is a fusion welding process?

  1. Resistance spot welding
  2. Cold pressure welding
  3. Arc welding
  4. Forge welding
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Answer: C. In fusion welding the parent metal is melted.

Sample Easy question 3

Powder metallurgy involves which steps?

  1. Melting, pouring and cooling
  2. Turning, drilling and grinding
  3. Blending, compacting and sintering
  4. Heating, hammering and quenching
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Answer: C. It is used for self-lubricating bearings and carbide tools.

Sample Medium question 4

Extrusion is used to produce:

  1. Long components of uniform cross-section
  2. Threaded holes
  3. Complex castings
  4. Gears by cutting
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Answer: A. Metal is forced through a die opening.

Sample Medium question 5

Drawing of wire is a:

  1. Casting process
  2. Machining process
  3. Joining process
  4. Cold working process
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Answer: D. Wire is pulled through a die of decreasing size.

Sample Medium question 6

Which process is used for making cups from sheet metal?

  1. Extrusion
  2. Forging
  3. Deep drawing
  4. Rolling
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Answer: C. A punch pushes the sheet into a die cavity.

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