Scabs may be caused by

Foundry Technology Mcqs
BILAL KHATTAK0

A.low permeability of sand
B.high moisture content of sand
C.intermittent running of molten metal over the sand surface
D.any of the above

Related Mcqs:

  1. Blow holes in castings are due to
  2. The function of riser is
  3. The pouring of molten metal during casting should be stopped when
  4. The slow rate of decomposition of fallen logs in nature is due to their ___________.
  5. Night time temperatures rarely drop below the dew point temperature because __________?
  6. Permeability of a foundry sand is
  7. Which of the following statement about core is incorrect?
  8. Permeability of sand decreases as
  9. The residual stresses in casting occur due to
  10. Cohesiveness of sand depends on

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