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Mill (grinding): Quiz


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Question 1: In materials processing a grinder is a machine for producing fine particle size reduction through attrition and compressive ________ at the grain size level.
EnergyPhysicsForceClassical mechanics

Question 2: Ball mills are commonly used in the manufacture of ________.
Cement kilnRawmillConcretePortland cement

Question 3: ________, also called flour mill or corn mill
WatermillWater wheelGristmillIslamic Golden Age

Question 4: Historically mills were powered by hand (mortar and pestle), working animal, wind (windmill) or water (________).
Al-AndalusWater wheelWatermillMuslim Agricultural Revolution

Question 5: May be used where product contamination by ________ from steel balls must be avoided.

Question 6: A slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grinds material to the necessary fineness by ________ and impact with the tumbling balls.
Lift (force)Drag (physics)ForceFriction

Question 7: Extreme ________ causes the rocks to fracture into finer particles and also causes microfracturing at the grain size level.
ForcePressureTemperaturePressure measurement

Question 8: Another type of fine grinder commonly used is the buhrstone mill, which is similar to old-fashioned ________.
Water wheelGristmillIslamic Golden AgeWatermill

Question 9: See also ________ for mechanisms producing larger particles.
DrillDrill bitCrusherBlade


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