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Mechanical Skills and Concepts Quiz

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What is the SI unit of force?

Newton

Explanation

Unit for measuring force.

Which of the following is a simple machine?

Pulley

Explanation

Basic machine for lifting or lowering loads.

What does the term 'torque' refer to in mechanics?

Force that causes rotation

Explanation

Rotational force.

What is the primary function of a camshaft in an internal combustion engine?

To control the intake and exhaust valves

Explanation

Regulates valve opening and closing.

Which of the following materials is typically used as a lubricant in mechanical systems?

Graphite

Explanation

Common lubricating material.

What is the purpose of a flywheel in a machine?

To store rotational energy

Explanation

Energy storage for smooth operation.

In a gear train, if the driving gear has 20 teeth and the driven gear has 40 teeth, what is the gear ratio?

2:1

Explanation

Ratio of teeth on driving to driven gear.

Which law of thermodynamics states that energy cannot be created or destroyed, only transferred or transformed?

First Law

Explanation

Law of conservation of energy.

What is the purpose of a clutch in a manual transmission vehicle?

To engage or disengage the engine from the transmission

Explanation

Transmission control for power transfer.

#10

Which type of material experiences a decrease in electrical resistance when cooled to extremely low temperatures?

Superconductor

Explanation

Material with zero resistance at low temperatures.

#11

Which law of motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force?

Newton's First Law

Explanation

Law of inertia.

#12

What is the term for the point at which a structure experiences a sudden failure due to stress concentration?

Failure point

Explanation

Point of structural failure due to stress.

Mechanical Skills and Concepts Quiz

What is the SI unit of force?

Which of the following is a simple machine?

What does the term 'torque' refer to in mechanics?

What is the primary function of a camshaft in an internal combustion engine?

Which of the following materials is typically used as a lubricant in mechanical systems?

What is the purpose of a flywheel in a machine?

In a gear train, if the driving gear has 20 teeth and the driven gear has 40 teeth, what is the gear ratio?

Which law of thermodynamics states that energy cannot be created or destroyed, only transferred or transformed?

What is the purpose of a clutch in a manual transmission vehicle?

Which type of material experiences a decrease in electrical resistance when cooled to extremely low temperatures?

Which law of motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force?

What is the term for the point at which a structure experiences a sudden failure due to stress concentration?

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