Which of the following is not a cutting machine ?
Which of the following is not a cutting machine ?
A. Dicers
B. Knife cutters
C. Slitters
D. Tube mills
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The value of ‘angle of nip’ is generally about__________________?
The value of ‘angle of nip’ is generally about__________________?A. 16°
B. 32°
C. 52°
D. 64°Ore concentration by jigging is based on the difference in the ______________ of the particles?
Ore concentration by jigging is based on the difference in the ______________ of the particles?A. Specific gravities
B. Wettability
C. Shape
D. None of theseSize reduction of ice and gypsum can be accomplished suitably by a _______________ crusher?
Size reduction of ice and gypsum can be accomplished suitably by a _______________ crusher?A. Blake jaw
B. Toothed roll
C. Gyratory
D. None of theseDust 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 ?
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 ?A. 200°C and 5 atm
B. 1000°C and 10 atm
C. 500°C and 50 atm
D. 1000°C and 500 atmWhich of the following is a pressure filter ?
Which of the following is a pressure filter ?A. Leaf filter (Moore filter)
B. Plate and flame filter
C. Rotary drum filter
D. Sand filterSize reduction of the ______________ can be suitably done by ball mills, crushing rolls and rod mills?
Size reduction of the ______________ can be suitably done by ball mills, crushing rolls and rod mills?A. Metalliferous ores
B. Non-metallic ores
C. Basic slags
D. Asbestos & mica