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Mechanical Engineering :: Basic Mechanical Engineering

  1. One of the following objectives is not achieved by the process of annealing
  2. A.
    to relieve internal stress
    B.
    to refine grain structure
    C.
    to increase the yield point
    D.
    to soften the metal

  3. A micrometer screw has pitch of 0.5 mm and the themble has 100 equal divisions marked on it, the least count of the instrument in mm is
  4. A.
    0.05
    B.
    0.5
    C.
    0.025
    D.
    0.005

  5. Feeler gauges are used for measuring the
  6. A.
    thickness of plates
    B.
    clearances between mating parts
    C.
    pitch of screw threads
    D.
    radius of curvature

  7. One of the following function is not performed by coating on the welding electrodes
  8. A.
    increase the cooling rate
    B.
    provide protective atmosphere
    C.
    refuce oxidation
    D.
    stabilize the arc

  9. In a process chart the inverted triangle symbol indicates
  10. A.
    an operation
    B.
    inspection
    C.
    storage
    D.
    transport

  11. One of the materials used for making surface plate is
  12. A.
    granite
    B.
    brass
    C.
    stainless steel
    D.
    wood

  13. Brasses and bronzes are welded using
  14. A.
    neutral flame
    B.
    oxidizing flames
    C.
    carburising flame
    D.
    reducing flame

  15. Reducing flame is obtained in oxyactetylane welding with
  16. A.
    excess oxygen
    B.
    equal parts of both gases
    C.
    excess of acetylene
    D.
    reduced acetylene

  17. Upsetting is the term used in one of the following operations
  18. A.
    casting
    B.
    turning
    C.
    drilling
    D.
    forging

  19. Rapping allowance is provided on a pattern to take care of
  20. A.
    shrinkage
    B.
    distortion
    C.
    machining
    D.
    easy withdrawl