Which of the following is the most suitable for cleaning of fine coal dust ( a) Trough washer b) Baum jig washer c) Spiral separator d) Froth floatation ... 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 ...
Summary of Coal Mill Controls. To summarize the coal mill controls, they may be divided basically into two major categories: 1. To control the quality of coal being sent to the burners located on the furnace walls. The word quality here means the temperature and fineness of the PF. The set temperature values are dependent on the ...
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.
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
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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 ...
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
India participated in Olympics Hockey in Answer: Option C A. 1918 B. 1928 C. 1938 D. 1948 32. Indira Gandhi was assassinated in Answer: Option B A. 1974 B. 1984 C. 1994 D. 2004 25. If force is expressed in Newton and the Answer: Option B distance in metre, then the work done is A. Joule B. Kg wt m 33.
Which of the following gases has the highest calorific value? A. Producer gas. B. Coal gas. C. Water gas. D. Blast furnace gas. Answer: Option B.
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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.
For skim milk, r1 =, A = 1032 kg m3, cream r2 = m, = 915 kg m3 Answer : 17 cm. 2. A dilute slurry containes small solid food particles having a diameter of 5 x 10 2 mm, which are to be removed by centrifuging. The particle density is 1050 kg/m 3 and the solution density is 1000 kg/m3.
Which of the following depreciation method would be most suitable for coal mines? A. Diminishing balance method. B. Depletion method. C. Fixed Installation method. D. The sum of years digits method. Answer: Option B
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 ...
Ultimately, the energetic efficiency of coal mill has been investigated and performance value has been found to be a maximum value of %. The layout of the coal mill with a rotary classifier ...
Answer: Palampur has a primary health centre run by the government. It also has one private dispensary. Q19: What is the main aim of production? Answer: The main aim of production is to produce goods and services required by the people. Q20: Which of the following is the standard unit of measuring land? (a) bigha (b) guintha (c) hectare (d) quila
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Abstract: The paper presents development and validation of coal mill model (including the action of classifier) to be used for improved coal mill control. The model is developed by using the mass and heat balance equations of the coal mill. Genetic Algorithm is used to estimate the unknown parameters that are used in the model validation.
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The work index in Bond's law for crushing of solids has the following dimensions. A. No units (dimensionless) B. kWh/ton. C. kW/ton. D. 2/ton kWh. m 1 2 / ton. Answer: Option B. This Question Belongs to Chemical Engineering >> Mechanical Operations.
The mill is characterized by low power consumption, smooth output and long maintenance period, which is suitable for grinding hard bituminous coal. At present, this type of mill has been widely used in coalfired power plants of China, and its structure is shown in Figure 1. The mediumspeed coal mill system is mainly composed of raw coal ...
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If the return value of the function is too large or small to be represented by a double (causing overflow or underflow), the function will return HUGE_VAL (for overflow) or 0 (for underflow) and will set errno to ERANGE. The values EDOM, ERANGE, and HUGE_VAL are defined in The following list describes the functions declared in : 1.
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.
Fusion point of coal ash generally varies from 1000 to 1700°C. Ash having fusion point less than _____ °C is liable to form clinker. A. 1100
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