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Introduction to Lubricants Quiz

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Questions and Answers

Explain the function of a lubricant in reducing wear and tear of moving parts in machines.

A lubricant prevents direct contact between moving surfaces, reducing wear, tear, and surface deformation of the parts.

Define friction and its impact on the efficiency of machines.

Friction is the resistance offered to the movement of surfaces rubbing against each other. It causes wear and tear, energy wastage in the form of heat, and reduces the efficiency of machines.

What is the purpose of lubrication in the context of machine operation?

Lubrication is the process of reducing friction and wear between moving surfaces by adding lubricant in between them, thus enhancing the efficiency of the machine.

How does a lubricant act as a coolant in the context of machine operation?

A lubricant acts as a coolant by removing frictional heat, preventing the expansion of metals, and reducing the frictional heat. Signup and view all the answers

What are the key functions of a lubricant in the context of machine operation?

The key functions of a lubricant include preventing direct contact between moving surfaces, reducing energy wastage, preventing the expansion of metals, and acting as a coolant by removing frictional heat. Signup and view all the answers

What is the purpose of a lubricant in the context of machine operation?

A lubricant is used to reduce friction between moving surfaces, prevent wear and tear, and improve the efficiency of the machine. Signup and view all the answers

Define friction and explain its impact on machine operation.

Friction is the resistance offered to the movement of two surfaces rubbing against each other. It causes wear and tear of moving parts, dissipates energy as heat, and reduces the efficiency of the machine. Signup and view all the answers

What is the process of lubrication and how does it contribute to machine maintenance?

Lubrication is the process of adding a lubricant between two moving surfaces to reduce friction and wear. It helps prevent direct contact between the surfaces, reduces energy wastage, and acts as a coolant to prevent expansion of metals. Signup and view all the answers

List and explain two functions of a lubricant in the context of machine operation.

<ol> <li>It prevents direct contact between moving surfaces, reducing wear and tear, and surface deformation. 2. It reduces wastage of energy, thereby enhancing the machine's efficiency.</li> </ol> Signup and view all the answers

How does a lubricant act as a coolant, and why is this function important?

A lubricant acts as a coolant by removing frictional heat, which prevents the expansion of metals. This function is important for maintaining the stability and performance of the machine. Signup and view all the answers