Materials & Construction Mcqs for Chemical


Q.  Ball bearings are normally made of _____________ steel?

a. High speed
b. High carbon
c. Chrome
d. Silicon


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Which of the following mechanical conveyors does not come under the division „carriers‟ ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Particle size range in which dust catcher (gravity settling chamber) works most effectively and efficiently is ______________ microns?
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MCQs:  Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Angle of nip of the crushing rolls does not depend upon the_______________?
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MCQs:  Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines ?
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MCQs:  Flow of filtrate through the cake in a plate and frame filter press is best described by the ______________ equation?
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MCQs:  Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to ____________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance)?
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MCQs:  Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids (> 50000 centipoise) ?
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MCQs:  The specific surface of spherical particles is proportional to (where, Dp = diameter of particle)?
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MCQs:  Separation of materials of the same density based on their sizes by using then-different rates of flow is called__________________?
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MCQs:  Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively ?
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MCQs:  Energy consumed for crushing one ton of material ranges from ______________ kWh?
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MCQs:  Sphericity of raschig ring (whose length and diameter are equal) is___________________?
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MCQs:  Which of the following gives the crushing energy required to create new surface ?
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MCQs:  The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the _____________ filter?
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MCQs:  Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?
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MCQs:  In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the ________________ crushing?
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MCQs:  _______________ centrifuge is the most suitable for separation of non-friable crystals?
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MCQs:  Laminar flow region is said to exist during agitation of a liquid in an agitator, when the value of Reynolds number is________________?
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MCQs:   A _______________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream?
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