Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. Middling None of these Concentrate Tailing Middling None of these Concentrate Tailing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Helical screw agitator is used for Blending immiscible liquids Mixing liquids at very high temperature (> 250 °C) None of these Mixing highly viscous pastes Blending immiscible liquids Mixing liquids at very high temperature (> 250 °C) None of these Mixing highly viscous pastes ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of __________ is accomplished in steam heated rollers and roll crushers. Resins Waxes Hard rubber Gums Resins Waxes Hard rubber Gums ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 10 to 15 8 to 10 15 to 20 3 to 4 10 to 15 8 to 10 15 to 20 3 to 4 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a filter medium in case of corrosive liquids? Metal cloth of monel or stainless steel Cotton fabric Glass cloth Nylon Metal cloth of monel or stainless steel Cotton fabric Glass cloth Nylon ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls? 46° 40° 16° 32° 46° 40° 16° 32° ANSWER DOWNLOAD EXAMIANS APP
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