Question

Pick out the wrong statement.

a.

Cummulative 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 not needed for cummulative anslysis unlike differential anlaysis.

b.

A gate diagram is a plot of cummulative percent by weight undersize vs. the reciprocal of diameter, in which the area beneath the curve represents the surface.

c.

Capacity of crusher in choke feeding is increased.

d.

Rolling of pebbles/balls from top to bottom of the heap in tumbling mills is called 'cascading and throwing of the balls through the air to the toe of the heap is called 'cataracting'.

Answer: (c).Capacity of crusher in choke feeding is increased.

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Pick out the wrong statement.

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Which of the following size reduction equipments employs mainly attrition for ultrafine grinding ?

Q. Tank filter (e.g., Nutsch filter) is

Q. Which of the following gives the crushing energy required to create new surface ?

Q. In filtration, the use of 'filter aid' helps in

Q. Gizzlies are used for separating __________ solids.

Q. Which of the following clay mixing devices is vacuum operated for deairation of clay?

Q. Pick out the material having minimum Rittinger's number.

Q. __________ mills are termed as impactors.

Q. In case of a revolving mill, wet grinding compared to dry grinding

Q. To get a fine talc powder from its granules, the equipment used is

Q. For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is

Q. At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied:

P₀ = ρ/ρN³ D⁵ : Power number
Re = ρ N D²/μ: Reynold's number

N is the impeller rotational speed, and D is the impeller diameter.

Q. Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines ?

Q. Rittinger's crushing law states that

Q. 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' ?

Q. Sphericity of pulverised coal is

Q. In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.

Q. Separation of materials of the same density based on their sizes by using then-different rates of flow is called

Q. Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a

Q. Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!