Mechanical Engineering Quiz-1 (Iste Student's Chapter)

10 Questions | Total Attempts: 15

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Mechanical Engineering Quiz-1 (Iste Student

Dr. Sivanthi Aditanar College of Engineering, Mechanical Engineering, ISTE Student's Chapter (Date: 29-05-2020)


Questions and Answers
  • 1. 
    The type of weld represented by the shaded region in the figure is
    • A. 

      Groove

    • B. 

      Spot

    • C. 

      Fillet

    • D. 

      Plug

  • 2. 
    The major difficulty during welding of aluminium is due to its
    • A. 

      High tendency of oxidation

    • B. 

      High thermal conductivity

    • C. 

      Low melting point

    • D. 

      Low density

  • 3. 
    In solid-state welding, the contamination layers between the surfaces to be welded are removed by
    • A. 

      Alcohol

    • B. 

      Plastic deformation

    • C. 

      Water jet

    • D. 

      Sand blasting

  • 4. 
    Which one of the following is a solid state joining process?
    • A. 

      Gas tungsten arc welding

    • B. 

      Resistance spot welding

    • C. 

      Friction welding

    • D. 

      Submerged arc welding

  • 5. 
    It is desired to make a product having T-shaped cross-section from a rectangular aluminium block. Which one of the following process is expected to provide the highest strength of the product?
    • A. 

      Welding

    • B. 

      Casting

    • C. 

      Metal forming

    • D. 

      Machining

  • 6. 
    The part of a gating system which regulates the rate of pouring of molten metal is
    • A. 

      Pouring basin

    • B. 

      Runner

    • C. 

       choke

    • D. 

      Ingate

  • 7. 
    The welding process which uses a blanket of fusible granular flux is
    • A. 

      Tungsten inert gas welding

    • B. 

      Submerged arc welding

    • C. 

      Electroslag welding

    • D. 

      Thermit welding

  • 8. 
    In a linear arc welding process, the heat input per unit length is inversely proportional to
    • A. 

      Welding current

    • B. 

      Welding voltage

    • C. 

      Welding speed  

    • D. 

      Duty cycle of the power source

  • 9. 
    In full mould (cavity-less) casting process, the pattern is made of
    • A. 

      Expanded polystyrene

    • B. 

      Wax

    • C. 

      Epoxy

    • D. 

      Plaster of Paris

  • 10. 
    The hot tearing in a metal casting is due to
    • A. 

      High fluidity

    • B. 

      High melt temperature

    • C. 

      Wide range of solidification temperature  

    • D. 

      Low coefficient of thermal expansion

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