Description : __________ mills are termed as disintegrators .(A) Cage (B) Compartment (C) Pebble (D) All tumbling
Last Answer : (A) Cage
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 : Which of the following is not a revolving/tumbling mill used for size reduction? (A) Compartment mill (B) Pebble mill (C) Cage mill (D) Rod mill
Last Answer : (C) Cage mill
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 : 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 : __________ mill is not a revolving mill. (A) Pebble (B) Compartment (C) Cage (D) Tube
Last Answer : (C) Cage
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 : 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 : 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 : A __________ mixer resembles a ball mill without balls. (A) Banbury (B) Pug mill (C) Tumbling (D) Pan
Last Answer : (C) Tumbling
Description : Ball mills and tube mills with flint or porcelain balls are used for size reduction of (A) Asbestos (B) Rubber (C) Non-metallic ores (D) Limestone
Last Answer : (C) Non-metallic ores
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 : __________ 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 : 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 asbestos and mica is done by (A) Hammer mills (B) Rod mills (C) Gyratory crushers (D) Crushing rolls
Last Answer : (A) Hammer mills
Description : Pick out the correct statement. (A) Noise from ball mills can be dealt with by fibre glass lined enclosures (B) Noise from vibrating chutes can be reduced by lining the metallic chute with rubber (C) Noise ... cloth conveyor belts and rubber/plastic covered metallic rollers (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 : Balls for ball mills are never made of (A) Forged/cast steel (B) Lead (C) Cast iron (D) Alloy steel
Last Answer : (B) Lead
Description : _________ baffles are provided in ball mills. (A) Horizontal (B) No (C) Only two (D) None of these
Last Answer : (A) Horizontal
Description : Basic slag is not ground in (A) Jaw crushers (B) Ball mills
Last Answer : (A) Jaw crushers
Description : Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? (A) ... of large particles (upto 1.25 cms) (D) Dry grinding of large particles in un-baffed mills
Last Answer : (D) Dry grinding of large particles in un-baffed mills
Description : For efficient grinding, ball mills must be operated (A) At a speed less than the critical speed (B) At a speed more than the critical speed (C) At a speed equal to the critical speed (D) With minimum possible small balls
Last Answer : (A) At a speed less than the critical speed
Description : Which of the following is not a cutting machine? (A) Dicers (B) Knife cutters (C) Slitters (D) Tube mills
Last Answer : (D) Tube mills
Description : Electrometallurgical methods of metal extraction is normally used for those metals (A) Whose oxide/ore is not reduced by carbon (B) Which fall in the category of alkali & alkaline earth metals (C) Which stands higher in the electrochemical series of the metal (D) All (A), (B) & (C)
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 : 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 : __________ doesn't fall under the category of digital marketing. a. TV b. Billboard c. Radio d. All of the above
Last Answer : d. All of the above
Description : Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens. (A) Jaw crusher (B) Hammer crusher (C) Ball mill (D) Tube mil
Last Answer : (B) Hammer crusher
Description : Tube mill compared to ball mill (A) Produces finer products (B) Is long in comparison with its diameter (C) Uses smaller balls (D) All (A), (B) & (C)
Description : 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’? (A) Bucket conveyor (B) Flight conveyor (C) Screw conveyor (D) Both (B) and (C)
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 : A metal ball on an insulated stand is touched by a positively charged glass rod. What happens to the metal ball? Does it w) gain protons and lose electrons x) gain protons y) gain more protons than electrons z) lose electrons
Last Answer : ANSWER: Z -- LOSE ELECTRONS
Description : __________ Centrifuge is normally used in sugar mills. (A) Tubular bowl (B) Disc-bowl (C) Suspended batch basket (D) Perforated horizontal basket continuous
Last Answer : (C) Suspended batch basket
Description : Colloidal mills are used for __________ grinding. (A) Coarse (B) Intermediate (C) Fine (D) Ultrafine
Last Answer : (D) Ultrafine
Description : __________ mills are termed as impactors. (A) Hammer (B) Cage (C) Rolling-compression (D) None of these
Last Answer : (A) Hammer
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