Mechanical Operations Size measurement of ultrafine particles can be best expressed in terms of Screen size Centimetre Micron Surface area per unit mass Screen size Centimetre Micron Surface area per unit mass ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultra centrifuges are used for the separation of __________ solid particles. Coarse Fine Colloidal Dissolved Coarse Fine Colloidal Dissolved ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Froth floatation Classification Thickening Clarification Froth floatation Classification Thickening Clarification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a None of these Boundary mixer Sharpies centrifuge Propeller agitator None of these Boundary mixer Sharpies centrifuge Propeller agitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the Linear speed of the basket is doubled Centrifugal force is doubled Linear speed of the basket is halved Capacity of centrifuge is increased Linear speed of the basket is doubled Centrifugal force is doubled Linear speed of the basket is halved Capacity of centrifuge is increased ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Small lumpy (e.g. grains and sand) Sticky (e.g. clay paste) Free flowing Fine (e.g. - 200 mesh size coal) Small lumpy (e.g. grains and sand) Sticky (e.g. clay paste) Free flowing Fine (e.g. - 200 mesh size coal) ANSWER DOWNLOAD EXAMIANS APP
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