Description : __________ mill is not a revolving mill. (A) Pebble (B) Compartment (C) Cage (D) Tube
Last Answer : (C) Cage
Description : 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. (A) Compartment (B) Tube (C) Rod (D) Pebble
Last Answer : (A) Compartmen
Description : __________ mills are termed as disintegrators .(A) Cage (B) Compartment (C) Pebble (D) All tumbling
Last Answer : (A) Cage
Description : __________ mills fall in the category of tumbling mills, (A) Ball and pebble (B) Rod and tube (C) Compartment (D) All (A), (B) & (C
Last Answer : (D) All (A), (B) & (C
Description : Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? (A) Compartment mill (B) Rod mill (C) Pebble mill (D) Tube mill
Last Answer : (B) Rod mill
Description : Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of (A) Bronze (B) Stainless steel (C) Flint or porcelain (D) Concrete
Last Answer : (C) Flint or porcelain
Description : 3. __________ mill is normally used for grinding of talc. (A) Tube (B) Compartment (C) Ring-roll (D) Pebble
Last Answer : (A) Tube
Description : Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the (A) Blake jaw crusher (B) Cage mill (C) Stamp mill (D) Bradford's breaker
Last Answer : (B) Cage mill
Description : Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill. (A) Cage (B) Hammer (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : A __________ mixer resembles a ball mill without balls. (A) Banbury (B) Pug mill (C) Tumbling (D) Pan
Last Answer : (C) Tumbling
Description : A pebble mill (A) Is a ball mill (B) Employs flints or ceramic pebbles as the grinding medium (C) Is a tube mill lined with ceramic or other non-metallic liner (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : __________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products. (A) Buhrstone (B) Roller (C) Attrition (D) Pebble
Last Answer : (D) Pebble
Description : Feed size of ≥ 25 cms can be accepted by (A) Ball mill (B) Rod mill (C) Fluid energy mill (D) Jaw crusher
Last Answer : (D) Jaw crusher
Description : Wet grinding in a revolving mill __________ as compared to dry grinding. (A) Gives less wear on chamber walls (B) Requires more energy (C) Increases capacity (D) Complicates handling of the product
Last Answer : (C) Increases capacity
Description : In case of a revolving mill, wet grinding compared to dry grinding (A) Requires more energy (B) Has less capacity (C) Complicates handling & classification of the product (D) None of these
Last Answer : (D) None of these
Description : In case of a hammer crusher, (A) Crushing takes place by impact breaking (B) Maximum acceptable feed size is 30 cms (C) Reduction ratio can be varied by adjusting the distance from cage to hammers (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately? (A) Rittinger's law (B) Kick's law (C) Bond's law (D) None of these
Last Answer : (A) Rittinger's law
Description : A tube mill as compared to a ball mill (A) Employs smaller balls (B) Gives finer size reduction but consumes more power (C) Has larger length/diameter ratio (>2 as compared to 1 for ball mill) (D) All (A), (B) and (C)
Description : For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a (A) Buhrstone mill (B) Ball mill (C) Crushing rolls (D) Hammer mill
Last Answer : (A) Buhrstone mill
Description : The mechanism of size reduction by a hammer mill is by impact and attrition between the (A) Grinding element & the housing (B) Feed particles (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Out of the following size reduction equipments, the maximum feed size can be accepted by the (A) Tube mill (B) Ball mill (C) Jaw crusher (D) Jet pulveriser
Last Answer : (C) Jaw crusher
Description : Maximum size reduction in a fluid energy mill is achieved by (A) Compression (B) Interparticle attrition (C) Cutting (D) Impact
Last Answer : (B) Interparticle attrition
Description : Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. (A) Jaw crusher, Ball mill, Fluid energy mill (B) Ball mill, Jaw crusher, Fluid ... C) Fluid energy mill, Jaw crusher, Ball mill (D) Fluid energy mill, Ball mill, Jaw crusher
Last Answer : (A) Jaw crusher, Ball mill, Fluid energy mill
Description : Maximum size reduction in a ball mill is done by the, __________ action. (A) Attrition (B) Compression (C) Impact (D) Cutting
Last Answer : (C) Impact
Description : Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? (A) Jet mills (B) Fluid energy mill (C) Micronizer (D) All (A), (B) and (C)
Description : Size reduction does not occur due to compression in case of (A) Rod mills (B) Gyratory crushers (C) Jaw crushers (D) Smooth roll crushers
Last Answer : (A) Rod mills
Description : 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
Last Answer : (A) Metalliferous ores
Description : Size reduction of asbestos and mica is done by (A) Hammer mills (B) Rod mills (C) Gyratory crushers (D) Crushing rolls
Last Answer : (A) Hammer mills
Description : Crushing of mineral particles is accomplished in a 'cage mill', when one or more alloy steel bars are revolved in opposite directions. It is a type of __________ mill. (A) Impact (B) Roll (C) Vibratory (D) None of these
Last Answer : (A) Impact
Description : For the preliminary breaking of hard rock, we use a (A) Gyratory crusher (B) Ball mill (C) Tube mill (D) Squirrel-cage disintegrator
Last Answer : (A) Gyratory crusher
Description : Fibrous material is broken by a (A) Roll-crusher (B) Squirrel-cage disintegrator (C) Ball mill (D) Tube mill
Last Answer : (B) Squirrel-cage disintegrator
Description : Pick out the wrong statement. (A) Cumulative analysis for determining surface area is preferred over differential analysis, because of the assumption that "all particles in a simple fraction equal in size" is ... throwing of the balls through the air to the toe of the heap is called 'cataracting'
Last Answer : (C) Capacity of crusher in choke feeding is increased
Description : Which of the following crushers can be considered as a combination of a jaw crusher and a roller crusher? (A) Rod mill (B) Fluid energy mill (C) Gyratory crusher (D) Ball mill
Last Answer : (C) Gyratory crusher
Description : Energy requirement (per unit mass of material crushed/ground) is highest for (A) Jaw crusher (B) Rod mill (C) Ball mill (D) Fluid energy mil
Last Answer : (D) Fluid energy mil
Description : To get ultrafine particles, the equipment used is a (A) Ball mill (B) Rod mill (C) Hammer crusher (D) Fluid energy mill
Last Answer : (D) Fluid energy mill
Description : Rod mills employed for grinding (A) Employ a steel shell having L/D ratio of 1.5 to 3.0 (B) Is useful for handling sticky materials (C) Employ steel rods of 2-12 cms diameter extending over full length of the mill (D) All 'a', 'b' & 'c'
Last Answer : (D) All 'a', 'b' & 'c'
Description : Tumbling is the process of improving the __________ of the materials/parts. (A) Surface finish (B) Fatigue limit (C) Creep limit (D) Surface cleanliness
Last Answer : Option D
Description : 13 year old tumbling/acrobatic classes?
Last Answer : You might want to look for places that teach cheerleading. How far are you from Fairfield NJ? It looks like there are a few choices there.
Description : What do you learn in Tumbling for cheerleading class?
Last Answer : Since you’re a beginner, you’ll probably start out with round-offs and progress to handsprings later on. Have fun and don’t forget to stretch :)
Description : What are the differences between stunts and tumbling?
Last Answer : Stunts refers to the lifting of a person (the Flyer) into theair by Bases. Tumbling is one-person gymnastics, like roundoffbackhandsprings.
Description : A sensation of tumbling and dizziness when a pilot makes movement of his/her head during a tight turn are symptoms of: a. The Occulogyral Effect b. Flicker-vertigo c. Pilot’s Vertigo d. Nystagmus
Last Answer : c. Pilot’s Vertigo
Description : How to Build a Tumbling Composter
Last Answer : How to Build a Tumbling Composter To aerate your trash and make it compost better, you can use a compost turning tool. You can simply buy one, but since it can be a bit expensive, it's ... compost turning tool. Just follow these steps and you'll end up with your very own garden compost helper.
Description : State blasting and tumbling.
Last Answer : 1. Blasting (Abrasive blast cleaning): This method is widely used for removing all classes of scale and rust from forgings, Castings, weld elements, and heat treated parts. Depending on the finish ... by friction a fine cutting action which removes fins, flashes, and scales from the products.
Description : Explain how tumbling process is used to clean the surfaces.
Last Answer : Tumbling process: Tumbling process is used for removing rust and scale from metal parts. In this dry abrasive (deburring compounds) are effective for removing rust and scale from small parts of ... from the product. Parts configuration and size are the primary limitations of the process
Description : Can you use a beach pebble as a pumice stone?
Last Answer : It’s probably safe, but pebbles (at least when I think of it) are normally small and smooth; pumice is a little bit rough, and that’s what makes it work.
Description : 7. If you had a natural pebble-like the ones shown on page 13 in the textbook, what would you use it for? -History
Last Answer : I would have used some of these stone tools to cut meat and bone, scrape bark (from trees) and hides (animal skins), chop fruit, and roots. Some may have been attached to handles of bone or ... make spears and arrows for hunting. Other stone tools were used to chop wood, which was used as firewood,
Description : Do they just make them round?
Last Answer : Pebbles have been forming for decades. It is sanded by other stones in the water until a pebble is formed.
Description : I mean those round stones. Does it arise on its own? Or is it created by man?
Last Answer : "It arises on its own in nature" - a stone (pebble) simply rotates in a watercourse under the influence of a water stream and rubs against the surrounding stones (pebbles) until (and so thoroughly) it becomes a pebble. : o "man" - do you think that a person is sitting by a stream and playing ??? : D
Description : Are the waves caused by a pebble in water the same frequency?
Last Answer : Feel Free to Answer