Mechanical Operations Mcqs for Chemical

Q.  Sedimentation on commercial scale occurs in____________________?

a. Classifiers
b. Thickeners
c. Rotary drum filters
d. Cyclones


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Size reduction does not occur due to compression in case of________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The capacity of a belt conveyor depends upon two factors. If one is the cross-section of the load, the other is the _____________ of the belt?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The grinding in a hammer crusher takes place due to the_______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is not an ultrafine grinder (colloid mill) ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Compressibility co-efficient for an absolutely compressible cake is_______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is φs is defined by________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  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_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following crushers can be considered as a combination of a jaw crusher and a roller crusher ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Handling of ashes and similar materials can be done best by a ______________ conveyor?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Size reduction of the ______________ can be suitably done by ball mills, crushing rolls and rod mills?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  For spheres, the specific surface shape factor is given by___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A _____________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Cake resistance is___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Colloid mills achieve size reduction mainly by___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The basic filtration equation is given as dt/dV = (μ/A ΔP). [(α .CV/A) + Rm], where, V is volume of the filtrate; A is the filtration area, a is specific cake resistance, μ is viscosity of the filtrate, and C is the concentration of the solids in the feed slurry. In a 20 minutes constant rate filtration, 5 m3 of filtrate was obtained. If this is followed by a constant pressure filtration, how much more time in minutes, it will take for another 5 m3 of filtrate to be produced? Neglect filter medium resistance, Rm; assume incompressible cake ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Equivalent diameter of a particle is the diameter of the sphere having the same __________________?
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MCQs:  Which of the following is not accomplished by agitation of liquids in agitators ?
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MCQs:  _____________ is the most commonly used ‘filter aid’?
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MCQs:  For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts