Chemical Engineering Basics
If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

Nucleate boiling
Convection
Conduction
Radiation

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Basics
Maraging steels derive their strength from the following mechanism:

Fine dispersions of intermetallics of Fe, Ni, Ti etc
Fine dispersions of alloy carbides in a ferrite matrix
Fine dispersions of Fe₃ C nucleated on dislocations in austenite
A fine, highly dislocated and strong martensite

ANSWER DOWNLOAD EXAMIANS APP