7216Chemical EngineeringMedium
Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?
APerspex
BPlexiglass
CStyrofoam
DLucite
Correct answer
C. Styrofoam
Explanation
The correct answer is Styrofoam.
Correct answer
C. Styrofoam
Explanation
The correct answer is Styrofoam.
Schmidt number and Lewis number for pure air at atmospheric conditions are respectively________?
In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around ________?
In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is________?
In case of a shell and tube heat exchanger, the minimum shell thickness for carbon steel (inclusive of corrosion allowance) depends on shell diameter and is in the range of ________ mm?
Pick out the wrong statement?
At constant temperature, the thermal conductivities of gases ________ with rise in pressure?