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.Management Sciences
Category: CHEMICAL ENGINEERING
Dorr thickener is an equipment used for___________________?
A. Classification
B. Sedimentation
C. Clarification
D. Leaching
Which allotrope of sulphur is insoluble in carbon disulphide ?
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Milk of sulphur
The inter particle forces between linear chains in nylon-66 are ______________ bonds?
A. Hydrogen
B. Covalent
C. Ionic
D. None of these
The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the_________________?
A. Pipe roughness & pipe diameter
B. Fluid velocity
C. Type of flowing fluid
D. Both B. & C.
An example of a periodic furnace is the__________________?
A. Blast furnace stoves
B. Blast furnace
C. Coke oven heating chamber
D. Rotary kilns
Lap joints are preferred over butt joints in soldering/brazing, because these joints are _________________?
A. Weaker in tension but stronger in shear
B. Weaker in shear but stronger in tension
C. Stronger in both shear and tension
D. The lap joints are easily made
In the nuclear reaction, 93N239→ 94Pu239 + ?; the missing particle is a/an__________________?
A. Electron
B. Proton
C. Neutron
D. Position
Pick out the wrong statement ?
A. Geothermal energy is a non-conventional source of energy
B. Mass is converted into energy in both nuclear fission & fusion reaction
C. Inhalation of mercury vapour is not harmful for human beings
D. Inhalation of arsenic causes cancer
The main advantage of forced draft over natural draft is that____________________?
A. Combustion of fuel is complete
B. Smaller height chimney can be used
C. Furnace control is easier
D. All A., B. & C.
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