Mechanical Operations Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. 0.007 0.3 0.014 50 0.007 0.3 0.014 50 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 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. Rod Tube Compartment Pebble Rod Tube Compartment Pebble ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the material having minimum Rittinger's number. Quartz Pyrite Galena Calcite Quartz Pyrite Galena Calcite ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'? Screw conveyor Bucket conveyor Both B and C Flight conveyor Screw conveyor Bucket conveyor Both B and C Flight conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 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. 200°C and 5 atm 1000°C and 10 atm 500°C and 50 atm 1000°C and 500 atm 200°C and 5 atm 1000°C and 10 atm 500°C and 50 atm 1000°C and 500 atm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Colloid mills achieve size reduction mainly by Attrition Cutting Compression Impact Attrition Cutting Compression Impact ANSWER DOWNLOAD EXAMIANS APP
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