Question

4) Which type of springs have only active coils?

a. Helical compression springs

b. Helical tension springs

c. Both a. and b.

d. None of the above​

Answer 1

Answer:

The correct option is B) Helical tension springs.

Explanation:

1. Compression Open-coil helical springs that are wound or made to oppose compression along the direction of the wind are called springs.
2. The most typical design for a metal spring is helical compression. These coil springs can function independently, although they are frequently inserted inside a hole or assembled over a guide rod.
3. The helical tension spring has active coils.
4. Each side's spring has one inactive coil at the end, hence all of the coils that aren't on the ends are considered active coils.
5. The coil at the end of the spring is cut in half if it has an open end, which indicates that half of the coil is inactive.

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Answer 2

b. Helical tension springs have only active coils.

Explanation for the answer:

• Active coils are the coils which are within the spring.
• An inactive coil is the one which is present at the end of the spring on each side.
• Therefore, the active coils are all of the coils which aren't present on the ends of a spring.
• Helical tension springs are a tension spring having a helical shape.
• Helical tension springs are a tension spring having a helical shape. Helical tension springs have only active coils.
• Hence, the correct answer among all the options is option b. Helical tension springs.

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