A. Calorising
B. Galvanising
C. Zincification
D. Tempering
Related Mcqs:
- Galvanising (i.e., zinc coating) of steel sheets is done to______________________?
A. Prevent its rusting by contact with corrosive atmosphere
B. Protect the base metal by cathodic protection
C. Both A. & B.
D. Neither A. nor B. - Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as_____________________?
A. Sherardizing
B. Parkerising
C. Anodising
D. None of these - Which of the following metals in not used for coating of the base metal to guard it against corrosion ?
A. Lead
B. Cadmium
C. Magnesium
D. Aluminium - Generally _____________ are subjected to galvanising (i.e., zinc coating)?
A. Non-ferrous metals
B. Non-metals
C. Low carbon steels
D. Stainless steel - Corrosion resistance of steel is increased by the addition of_________________?
A. Phosphorous and tungsten
B. Nickel and chromium
C. Lead and vanadium
D. Molybdenum and tungsten - Corrosion involves exchange of electrons in ____________ corrosion?
A. Chemical
B. Electrochemical
C. Both A. & B.
D. Neither A. nor B. - To improve the machinability of steel by its softening, it is subjected to __________________?
A. Cold working
B. Annealing
C. Shot blasting
D. Heating - Most common stainless steel type 316, which is highly resistant to corrosion contains______________?
A. 16-13% Cr 10-14% Ni and 2-3% Mo
B. 20-22% Cr, and 8-10% Ni
C. 2-4% Cr, 22% NI and 2-4% Mo
D. None of these - _____________ is added in stainless steel to prevent inter crystal corrosion?
A. Vanadium
B. Niobium
C. Chromium
D. Nickel - To improve the machinability of steel, it is generally subjected to_______________?
A. Spheroidising
B. Tempering
C. Normalising
D. Annealing
