36751. With increase in drum speed, in a rotary drum filter, the filtration rate
36752. Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them.
36753. 200 mesh seive size corresponds to __________ microns.
36754. What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls ?
36755. 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
36756. Which of the following is not accomplished by agitation of liquids in agitators?
36757. Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation ?
36758. A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is
36759. In froth floatation, chemical agent added to cause air adherence is called
36760. The sphericity of a solid particle of cubical shape is
36761. Vertical transportation of materials can be done by a/an
36762. In a roll crusher, the specific power consumption and the production rate is affected by the
36763. A cottrel precipitator makes use of the __________ for dusty air cleaning.
36764. In two stroke engines has’port’ on
36765. If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the
36766. The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is
36767. Compressibility co-efficient for an absolutely compressible cake is
36768. Mixing of plastic solids is generally facilitated by
36769. The mechanism of size reduction by a hammer mill is by impact and attrition between the
36770. Which of the following is not an industrial screening equipment ?
36771. Which of the following is not a wet classifier ?
36772. Helical screw agitator is used for
36773. For raschig rings, the sphericity is
36774. For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns.
36775. __________ mills are termed as disintegrators.
36776. Supporting legs of a plate and frame filter is normally made of
36777. Wet grinding in a revolving mill __________ as compared to dry grinding.
36778. The grinding in a hammer crusher takes place due to the
36779. A compressible cake has the
36780. Which of the following is not used as a filter medium in case of corrosive liquids ?
36781. In ball mill operation, the feed size (Df in meters) and the ball diameter (Db in metres) are related as ( where, K = grindability constant (varying from 0.9 to 1.4 in increasing order of hard ness))
36782. Pine oil and cresylic acid are used as __________ in the froth floatation process.
36783. Grinding characteristic of a material is given by its
36784. Which of the following is not a non-metalliferous mineral?
36785. Filter medium resistance is important during the __________ of filtration.
36786. Float and sink test determines the possibility of cleaning of coal by a process based on the
36787. __________ baffles are provided in ball mills.
36788. Mixer used for rubber compounding is
36789. For spheres, the specific surface shape factor is given by
36790. __________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products.
36791. In case of a hammer crusher, the final product size depends on the
36792. Sphericity of raschig ring (whose length and diameter are equal) is
36793. Mixing mechanism employed in a pan mixer is by
36794. Chance process is used for the
36795. Which of the following screens has the maximum capacity ?
36796. Stamp mills are generally used for crushing
36797. In case of a plate and frame filter press, filtrate flow through the cake follows __________ flow.
36798. Which of the following is a batch sedimentation equipment ?
36799. The most suitable equipment for the transportation of 200 mesh size particles is a
36800. Which of the following is not used as filter aid?
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