Correct answer
B. All A., B. and C.
Explanation
The correct answer is All A., B. and C..
For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is________?
Satellites burn off during re-entry to earth’s atmosphere, because of the ________?
A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is________?
Steel tower used for the storage of oleum________?
Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of________?
Perspex is nothing but________?