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Machinist
Machinist Set-1
Surface Finish
32

Surface Finish MCQ - Machinist(Set-1) with Answers

32) Which type of polishing wheel is used for colouring and buffing of steel ?

Bleached filled Calico

Bleached unfilled linen

Swan down (Special cotton)

Felt of various grades

Answer is:

Bleached unfilled linen

Surface Finish MCQ - Machinist(Set-1) with Answers

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Related Surface Finish MCQ - Machinist(Set-1) with Answers

33) Which one of the following is the base metal for the process 'hot dip coating' ?

Mainly ferrous

Mainly non-ferrous

Aluminium

Zinc

Answer is:

Mainly ferrous

34) In an aluminium etching treatment, if the solution having 2% nitric acid, 2% sulphuric acid and 0.5% hydrochloric acid, is used at 100 Degree Centigrade for 15 minutes, what type of finish can be obtained ?

Grey finish

Silvery finish

White finish

Purple finish

Answer is:

Silvery finish

35) Silver or copper finishes are generally used on lighting fittings, name plates etc. Which one of the following is the process for this ?

Chemical finishing

Electroplating

'Oxidised' finishing

Phosphate finishing

Answer is:

Chemical finishing

36) Which one of the following is the base metal for the sprayed metal process ?

Mostly ferrous

Aluminium

All most All metals

Mostly non-ferrous metals

Answer is:

Mostly ferrous

Surface Finish MCQ - Machinist(Set-1) with Answers

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