In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.
A. Percentage elongation
B. Brinell hardness
C. Tensile strength
D. All of the above
Answer: Option A
A. Percentage elongation
B. Brinell hardness
C. Tensile strength
D. All of the above
Answer: Option A
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
A. Pulverised fuel
B. Travelling grate stoker firing
C. Circulating fluidised bed
D. Fluidised bed
Isotropic materials have the same __________ in all directions.
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
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