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  • Question
  • The silicon carbide abrasive is chiefly used for grinding


  • Options
  • A. cemented carbide
  • B. ceramic
  • C. cast iron
  • D. all of these

  • Correct Answer
  • all of these 


  • More questions

    • 1. A moving mandrel is used in

    • Options
    • A. wiredrawing
    • B. tube drawing
    • C. metal cutting
    • D. forging
    • Discuss
    • 2. Which of the following is an amorphous material?

    • Options
    • A. Mica
    • B. Silver
    • C. Lead
    • D. Glass
    • Discuss
    • 3. The critical pressure ratio for initially dry saturated steam is

    • Options
    • A. 0.546
    • B. 0.577
    • C. 0.582
    • D. 0.601
    • Discuss
    • 4. Hydrogen is the __________ substance.

    • Options
    • A. lightest
    • B. heaviest
    • Discuss
    • 5. Cemented carbide tools are generally poor in shear.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 6. Hot piercing is extensively used for making bolts and nuts.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 7. A Francis turbine is an outward flow reaction turbine.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. The negative acceleration is called retardation.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. When the spring of a watch is wound, it will possess

    • Options
    • A. strain energy
    • B. kinetic energy
    • C. heat energy
    • D. electrical energy
    • Discuss
    • 10. An alloy of copper, tin and zinc is known as

    • Options
    • A. brass
    • B. bronze
    • C. gun metal
    • D. muntz metal
    • Discuss


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