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When two springs of equal lengths are arranged to form cluster springs which of the following statements are the:
1. Angle of twist in both the springs will be equal
2. Deflection of both the springs will be equal
3. Load taken by each spring will be half the total load
4. Shear stress in each spring will be equal 
  • a)
    1 and 2 only
  • b)
    2 and 3 only
  • c)
    3 and 4 only
  • d)
    1, 2 and 4 only
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
When two springs of equal lengths are arranged to form cluster springs...
To understand why the correct answer is option 'A', let's analyze each statement one by one:

1. Angle of twist in both the springs will be equal:
When two springs of equal lengths are arranged to form a cluster, the angle of twist in both springs will be equal. This is because the cluster springs are connected in series, meaning that they share the same load and are subjected to the same torque. Therefore, the angle of twist in each spring will be equal.

2. Deflection of both the springs will be equal:
The deflection of each spring is determined by the load it carries and its stiffness. In a cluster spring arrangement, the load is shared between the two springs, and since they are of equal lengths and stiffness, the deflection of both springs will be equal.

3. Load taken by each spring will be half the total load:
In a cluster spring arrangement, the load is shared between the individual springs. Since the springs are connected in series, they experience the same load. Therefore, each spring will carry an equal portion of the total load. So, the load taken by each spring will indeed be half of the total load.

4. Shear stress in each spring will be equal:
The shear stress in a spring is directly proportional to the applied torque and inversely proportional to the polar moment of inertia of the spring. In a cluster spring arrangement, the springs are connected in series and experience the same torque. Additionally, since the springs are of equal lengths and diameters, they will have the same polar moment of inertia. Therefore, the shear stress in each spring will be equal.

Based on the above analysis, we can conclude that statements 1 and 2 are true, while statements 3 and 4 are also true. Hence, the correct answer is option 'A' - 1 and 2 only.
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When two springs of equal lengths are arranged to form cluster springs which of the following statements are the:1. Angle of twist in both the springs will be equal2. Deflection of both the springs will be equal3. Load taken by each spring will be half the total load4. Shear stress in each spring will be equala)1 and 2 onlyb)2 and 3 onlyc)3 and 4 onlyd)1, 2 and 4 onlyCorrect answer is option 'A'. Can you explain this answer?
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