Question

Graphite powder is used in machines in order to_______
A. enhance the friction
B. enhance the profit
C. reduce the friction
D. reduce the efficient

Answer 1

Hint: The primary uses of the graphite are for producing crucibles and other refractory products, lubricants, stove polish, paint, lead" pencils, electrodes, brake linings, batteries, powder metallurgy, fertilizers, glass manufacture, conductive coatings, and for foundry facings.

Complete answer:
Graphite is basically a different form of pure carbon. It is not chemically dangerous. However it is not an edible thing. Graphite will sometimes be found to be more dangerous than lead according to ingenuity. Suppose that we powder graphite and force another person to breath the powder up to the level where they choke, it will be more dangerous than a small amount of lead sitting some distance away.
The graphite powder is produced by heating the powdered petroleum coke above the temperature of graphitization. This can be often with minor modifications. Graphite and graphite powder are having high importance in industrial applications for their self-lubricating and also dry lubricating characteristics. It has been believed that the lubricating properties of graphite are only due to the loose inter lamellar bonding between sheets in the structure. The graphite powders are primarily used in machines in order to reduce the friction over there.

So, the correct answer is “Option C”.

Note:
Graphite dust will make our eyes irritable and could result in stinging, watering and redness of the eyes. Excessive exposure to graphite dust for a high period of time will result in a chronic and more serious situation known as Graphitosis. This is a form of pneumoconiosis. And also it has been shown that in a vacuum environment such as in technologies for use in space, the graphite degrades as a lubricant because of the hypoxic conditions.