مصنع لتجهيز البوكسيت/the coal mill has the following function examveda
Colloidal mill Working/ mechanism: The liquid containing Solid particles is put into the hopper. A suspension or liquid passes through the moving part (Rotor) and NonMoving (Stator), which causes a high shearing force between the two narrow gaps. Shear stress force can be reduced or increased by changing the gap (50 to 1000 mm) and by changing ...
The operating speed of a ball mill should be _____ the critical speed. a) Less than b) Much more than c) At least equal to d) Slightly more than ... 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.
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the. A. State or manner of application of the crushing force. B. Ultimate strength of the material. C. Elastic constant of the material. D. All of the above. Answer Solution Discuss in Board Save for Later.
Sociology. Political Science. Pharmacy. Which of the following is not an ultrafine grinder (colloid mill)? a) Micronizers b) Agitated mills and fluid energy mills c) Toothed roll crusher d) Hammer mills with internal classification.
Infrastructure topic is a part of economics which is important from exam point of view. The basic physical and organizational structure required for the smooth functioning of a society or industry is called infrastructure. In other words, the services and facilities which are needed for the economy to function are called infrastructure. To solve the question of infrastructure in economics, it ...
o Determines the permissible temperature rise and the necessity to cool the mill o Liquid N. 2. or solid CO. 2 . are mixed with foods before milling to cool the product and to retain volatiles ... • An ideal size reduction equipment should fulfill the following conditions Large capacity Should yield a pre desired sized product or ...
Solution(By Examveda Team) It contains more fixed carbon than any other form of coal and the least amount of volatile matter and it has calorific values near 35 mega joules per kilogram This Question Belongs to Mechanical Engineering >> Engineering Thermodynamics
A. Sheet tabs can be colored. B. Some picture can be applied as a background of a sheet. C. You can set the column width automatically fit the amount of text. D. The width of a row and be specified manually or fit automatically. Answer Solution Discuss in Board Save for Later. 9.
Solution (By Examveda Team) The basic calorific value for solid and liquid fuels is the gross calorific value at constant volume and for gaseous fuels it is the gross calorific value at constant pressure. The calorific value in Kcal/Kg: Coal: ; Natural gas: 8600; Coal gas: 4000; Water gas: ; and LPG (liquefied petroleum gas ...
A coal mill works by grinding coal into a fine powder using large metal rollers. This process is used to create precise particle sizes as required by the application. The coal is fed from the ...
For this third piece of the piece wise function, we have that when 4 < x < 9, then f (x) = 3. Notice that x cannot be equal to 4 or 9; it has to be greater than 4 and less than 9. If they had asked for g (4), that would be undefined to since the open circle on 4 means that the value 4 is NOT included. BUT any value ever so slightly greater than ...
CM 1112 Ch. 11 Quizzes. Get a hint. a. Steel fabricator. Click the card to flip 👆. Which of the following is primarily responsible for preparing structural steel shop drawings, which show details of connections, exact spacing of bolt holes, anchor bolt sizes and locations, and so on, and for to the site steel components that are ready to be ...
A thermal power plant burns coal at the rate of 10 t/hr and discharges the fuel gas though a stack having effective height of 90 m. The coal has sulphur content of 4%. The wind speed at stack top is 6m/s. The atmospheric stability class is 'C'. For this class at downwind distance of 2000m the constants σy and σz are 200 and 120 respectively.
In the fourth test, the balls were of fin. diameter; 2500 g of balls (50% of mill volume) and 130 g of coal were charged to the mill. The breakage mechanism in this test differed drastically from 77breakage. The attempts to fit the observed product distributions, after 2j, 5 and 7jmin grinding, shown in table 12 c, have failed completely.
Pharmacy. Geography MCQ questions and answers with a solution for a competitive exam and government exams. Practice and Learn physical Geography, Indian Geography, and World Geography MCQ Questions and Answers for SSC, UPSC, UPPSC, CDS, and State PSC Examinations.
A. SELECT city WHERE humidity = 89; B. SELECT city FROM weather WHERE humidity = 89; C. SELECT humidity = 89 FROM weather; D. SELECT city FROM weather; Answer Solution Discuss in Board Save for Later. 28.
Study area and sampling. Jinan Steel Plant (,, Shandong Province, People's Republic of China) with an area of 3 km 2 was analyzed and assessed in this research. This factory has been in service for almost 60 years before quitting the production in 2017 with the total steel production amount about 155 million tons (Cui et al., 2021).
14. The one thing that is common to all fossil fuels is that they: (a) Were originally formed in marine environment. (b) Contain carbon. (c) Have undergone the same set of geological processes during their formation. (d) Represent the remains of one living organisms. 15.
Learn Building Materials MCQ questions answers are available for a Civil Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Building Materials MCQ question is the important chapter for a Civil Engineering and GATE students.
Each Section contains maximum 100 MCQs question on Database Systems. To get more questions visit other sections. Database Systems Section 2. Learn Database Systems MCQ questions answers are available for a Computer Science students to clear GATE exams, various technical interview, competitive examination, and another entrance exam.
Curing agents. The generally used curing agents are sulfur, peroxides, and metal oxides. These materials are used to crosslink the rubber matrix; these crosslinks form different bonds, such as carboncarbon, carbonsulfur, and sulfursulfur linkages. The bond energy also depends on the type of crosslinking formed in the elastomer ...
The feed material was dry batch milled for selected periods ranging from 3; 5; 15; 3090 min. For all the batch tests, the mill feed was kept constant at 1941g and after each duration the mill was stopped and the contents offloaded. This was then followed by separation of the product from the grinding media on a wire mesh.
What does the builtin function max() do in Python? A. Returns the largest item in an iterable. B. Converts a number to a string. C. Returns the square of a number
Programming a robot by physically moving it through the trajectory you want it to follow is called: A. contact sensing control. B. continuouspath control. C. robot vision control. D. pickandplace control. E.
Answer: Option A This Question Belongs to Chemical Engineering >> Mechanical Operations Loaded 0% Join The Discussion Related Questions on Mechanical Operations 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
A. due to the fact that furnace gases being light go through the chimney giving place to cold air from outside to rush in B. due to the fact that pressure at the grate due to cold column is higher than the pressure at the chimney base due to hot column C. due to the fact that at the chimney top the pressure is more than its environmental pressure D. all of the above
Answer: Option B This Question Belongs to Chemical Engineering >> Mechanical Operations Join The Discussion Related Questions on Mechanical Operations 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 View Answer