Surface Finish MCQ with Answers

Surface Finish MCQ with Answers

31) Which one of the following is the application for 'Alumina' polishing abrasive ?

Answer is:

Hard abrasive for cutting or polishing

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

Answer is:

Bleached unfilled linen

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

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 ?

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 ?

Answer is:

Chemical finishing