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.Management Sciences
Category: Chemical Engineering Basics
Hydro-cyclone is a____________________?
0
A. Crusher
B. wet classifier
C. Dry classifier
D. Magnetic separator
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as______________________?
A. Re0.5, Re0.8
B. Re0.8, Re-0.5
C. Re0.8, Re0.5
D. Re-0.8, Re0.5
Which of the following is used to produce draught in the locomotive boilers ?
A. Chimney
B. Induced draught fan
C. Forced draught fan
D. Steam jet arrangement
Earing is a defect found in steels after the following metal working operation ?
A. Extrusion
B. Rolling
C. Deep drawing
D. Wire drawing
Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of_________________?
A. Lumps
B. Pellets
C. Briquettes
D. Sinter
Which one can be directly solidified from gaseous state without entering into liquid state ?
A. Helium
B. Oxygen
C. Carbon dioxide
D. None of these
Starting friction is low in case of the ____________________ lubrication?
A. Boundary
B. Hydrodynamic
C. Hydrostatic
D. Mixed/semi-fluid
Which of the following materials has the poorest electrical conductivity ?
A. Carbon
B. Aluminium
C. Silver
D. Stainless steel
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