Bennett Mechanical Test Springs and Elasticity 3

Question 1

In a car suspension system, coil springs are used primarily to:

Accepted Answer

Absorb road shocks and maintain tire contact

Answer

Suspension springs absorb bumps and vibrations from the road surface, keeping the tires in contact with the ground for control and comfort.

Question 2

Which statement correctly describes springs connected in series?

Accepted Answer

They experience the same force but have different extensions

Answer

In series, the same force (load) passes through each spring, but each spring extends individually so the total extension is the sum of all extensions.

Question 3

What material property makes steel well-suited for manufacturing springs?

Accepted Answer

High elastic limit and ability to return to its original shape

Answer

Steel has a high elastic limit, meaning it can be deformed significantly and still return to its original shape, making it ideal for springs.

Question 4

A spring scale (like a hanging fish scale) operates on the principle that:

Accepted Answer

Extension is proportional to applied force

Answer

Spring scales use Hooke's Law — the extension of the spring is proportional to the weight applied, which is then read off a calibrated scale.

Question 5

When a valve spring in an engine is compressed by the camshaft, what form of energy is stored in the spring?

Accepted Answer

Elastic potential energy

Answer

Compressing a spring stores elastic potential energy, which is released to push the valve closed when the camshaft lobe passes.

Bennett Mechanical Test Practice Test

Bennett Mechanical Test Practice Test

Bennett Mechanical Test Springs and Elasticity 3