Brass plating MCQ with Answers

Brass plating MCQ with Answers

11) Which is the combination for zinc cyanide bath?

Answer is:

Sodium zincate and zinc cyanide

12) Which is the temperature range of cyanide zinc solution for operation?

Answer is:

25 to 40 Degree Centigrade

13) Which process is used for colouring the job after zinc plating?

Answer is:

Bright Blue passivation

14) Which is the defect if zinc depositing rough and dark?

Answer is:

Deficiency of cyanide and caustic soda

15) Which is the defect if presence of blisters in the plating surface?

Answer is:

Solution out of balance