Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Consumes more power Both A and C Results in increased capacity Consumes less power Consumes more power Both A and C Results in increased capacity Consumes less power ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re0.5 Po ∝ Re1.0 Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re0.5 Po ∝ Re1.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the Maximum feed size may be 50 mm Rotor shaft carrying hammers can be vertical or horizontal Feed may be highly abrasive (Moh's scale >5) Minimum product size is 3 mm Maximum feed size may be 50 mm Rotor shaft carrying hammers can be vertical or horizontal Feed may be highly abrasive (Moh's scale >5) Minimum product size is 3 mm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for grinders is defined as(where, Df and Dp are average diameters of feed and product respectively). Dp/Df None of these Df/Dp Df - Dp Dp/Df None of these Df/Dp Df - Dp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Soft & non-abrasive materials can be made into fines by Compression Attrition None of these Cutting Compression Attrition None of these Cutting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an Venturi scrubber Bag filter Air filter Hydrocyclones Venturi scrubber Bag filter Air filter Hydrocyclones ANSWER DOWNLOAD EXAMIANS APP
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