Chemical Engineering Basics
The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Equal to
Greater than
Less than
Either A, B or C; depends on the size of atom

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Chemical Engineering Basics
Which of the following are made out of the carbon steel having carbon content of 0.9 to 1% ?

Forgings like can shaft, structural steel plate, threading dies and drawing dies
Cutlery, screws, rivets and files
Small punches, broaches reamers and springs
Mandrels, twist drills, small lathe tools and razors

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