Mechanical Operations Questions

• Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m3)
• Energy consumption in a crusher decreases with increase in the
• Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the
• The term 'angle of nip' is concerned with the operation of the __________ crushers.
• Vacuum filter is most suitable for the
• __________ mill is normally used for grinding of talc.
• Sauter mean diameter is the same as the __________ mean diameter.
• The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms.
• Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid.
• Which of the following is not a cutting machine?
• Vertical transportation of materials can be done by a/an
• Mixer used for rubber compounding is
• If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the
• The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is
• Which of the following is not accomplished by agitation of liquids in agitators?
• A compressible cake has the
• Filter medium resistance is important during the __________ of filtration.
• For spheres, the specific surface shape factor is given by
• For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as
• Wet grinding in a revolving mill __________ as compared to dry grinding.