Dissolved gases may be removed from molten metal by – McqOptions

MCQOPTIONS

1.	Dissolved gases may be removed from molten metal by
A.	Flushing or purging with inert gas
B.	Melting and pouring the metal in vacuum
C.	Flushing or purging with inert gas or Melting and pouring the metal in vacuum
D.	None of the Mentioned
Answer» D. None of the Mentioned

Discussion

No Comment Found

Related MCQs

Assertion (A): Chills are used to reduce shrinkage porosity.Reason (R): the function of chill is to increase the rate of solidification in a critical region.
Which one of the statements is not correct in metal casting?
The following characteristic of molten metal influence the fluidity.i) Mushy zoneii) Viscosityiii) Surface tensioniv) InclusionWhich one of the following is correct?
Dissolved gases may be removed from molten metal by?
Which one of the following expands during solidification?
According to Chvorinov’s rule the solidification time is a function of volume and surface area and is given by the relationship between volume, area and some exponential power ‘n’. What is the value of n?
If we decrease the freezing range, then the fluidity of metal will?
WHICH_ONE_OF_THE_STATEMENT_IS_CORRECT_IN_METAL_CASTING??$
Assertion_(A):_Chills_are_used_to_reduce_shrinkage_porosity.$
What is the function of cores used in casting?