The pilling-Bedworth ratio is defined as
A. the molar weight of an oxide divided by the molar weight of the metal consumed in oxide formation
B. the volume of the oxide divided by the volume of the metal consumed in oxide formation
C. the density of the oxide divided by the density of the metal consumed in oxide formation
D. the molar Gibbs energy of the oxide divided by the Gibbs energy of the metal consumed in oxide formation
Answer: Option B
This Question Belongs to Metallurgical Engineering >> Introduction To Metallurgy
Which of the following are not commercially manufactured by powder metallurgy
A. Aircraft brake pads
B. Self-lubricating bearings
C. Tungsten carbide based cutting tools
D. Turbine blades
A. 10 degrees
B. 21 degrees
C. 30 degrees
D. 50 degrees
Which crystal system does not have all axial angles at 90 degrees?
A. Tetragonal
B. rhombohedral
C. orthorhombic
D. cubic
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