11.2 Metal powder particle size is reduced during

atomisation by

(a) Decreasing gas velocity

(b) Increasing gas velocity

(c) Decreasing gas pressure

(d) Decreasing metal volume

11.3 Identify the correct statement among the

following:

(a) Blending and mixing refer to the same

process of mixing different types of

metal or alloy powders of different size

distributions

(b) Blending is mixing the different metal or

alloy powders of different size distributions

while mixing is mixing same types

of metal or alloy powders

(c) Blending is mixing the same metal or

alloy powders of different size distributions

while mixing is mixing different

types of metal or alloy powders

(d) Blending and mixing refer to the same

process of mixing same types of metal or

alloy powders of different size distributions