Ball Mill MCQ

Test your knowledge with important Ball Mill MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Ball Mill MCQs at Bissoy

• ______ indicates the impact of resistance.
  ক

  Toughness

  খ

  Rigidity

  গ

  Brittleness

  ঘ

  Fatigue
• The speed of a rotary knife cutter is ___
  ক

  100 to 500 rev/min

  খ

  200 to 900 rev/min

  গ

  400 to 600 rev/min

  ঘ

  50 to 60 rev/min
• The power consumption of colloid mill is _______
  ক

  Very low

  খ

  Optimum

  গ

  Critical

  ঘ

  Very high
• The clearance between rotor and stator is ______
  ক

  5 to 10 mm

  খ

  1 to 2.5 mm

  গ

  0 to 1.25 mm

  ঘ

  5 to 15 mm
• What does colloid mill produces?
  ক

  Emulsions and Solid dispersions

  খ

  Wet and dry products

  গ

  Coarse and fine particles

  ঘ

  Broad particles
• At what speed stirred mill operates?
  ক

  50 to 500 rpm

  খ

  5 to 10 rpm

  গ

  10 to 500 rpm

  ঘ

  100 to 1500 rpm
• The fluid energy mill involves __________
  ক

  Pressure

  খ

  Temperature

  গ

  Fluid

  ঘ

  Density
• What is the feed size for a Ultra-Fine grinder?
  ক

  > 3⁄4 inches

  খ

  < 3⁄4 inches

  গ

  > 1⁄2 inches

  ঘ

  < 1⁄2 inches
• Which of the following uses impact and attrition?
  ক

  Ball mill

  খ

  Tumbling mill

  গ

  Ultra-fine grinders

  ঘ

  Hammer mill
• What is the average particle size of ultra-fine grinders?
  ক

  1 to 20 µm

  খ

  4 to 10 µm

  গ

  5 to 200 µm

  ঘ

  50 to 100 µm