Material Science And Metallurgy (3131904) MCQs

MCQs of Metallic Materials

Showing 31 to 32 out of 32 Questions
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31.

 A test commonly applied to steel of unknown quality for identification purposes is the

(a)

Acid-etch test
(b)

Spark test
(c)

Fracture test
(d)

Dye-penetrant test
Answer:

Option (b)

32.

Following etching solution is used for aluminium

(a)

Nital-2% HNO3 in ethyl alcohol
(b)

Picral -5% picric acid and ethyl alcohol
(c)

1% hydrofluoric acid in water
(d)

50% NH4OH and 50% water
Answer:

Option (c)

Showing 31 to 32 out of 32 Questions
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