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  • Question

  • The correct sequence for preparing a billet for extrusion process is pickling, alkaline cleaning, phosphate coating and lubricating with reactive soap.


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • Yes 

    • More questions

    • 1. The heating and expanding of a gas is called thermodynamic system.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 2. The workdone in a free expansion process is zero.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The rivets are used for __________ fastenings.

    • Options
    • A. permanent
    • B. temporary
      • Discuss
    • 4. The limit of eccentricity is based upon no tension condition.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A file with 50 - 60 teeth in 25 mm is called bastard file.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Blast furnace is used to produce

    • Options
    • A. pig iron
    • B. cast iron
    • C. wrought iron
    • D. steel
      • Discuss
    • 7. In welding aluminium with TIG arc welding, alternating current is used.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 8. German silver contains

    • Options
    • A. 1% silver
    • B. 2% silver
    • C. 5% silver
    • D. no silver
      • Discuss
    • 9. The taper on the lathe spindle is

    • Options
    • A. 1 in 10
    • B. 1 in 15
    • C. 1 in 20
    • D. 1 in 30
      • Discuss
    • 10. In twist fluted drills, chips do not move out automatically.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss

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