Which of the following statements is/are true?1. In volute springs, number of active coils gradually decreases as load increases2. Stiffness of spring decreases as number of coils decreases in conical springs3. Torsion springs are generally spiral4. Helical torsion springs are used in automobile starters

Which of the following statements is/are true?1. In volute springs, nu

1.	Which of the following statements is/are true?1. In volute springs, number of active coils gradually decreases as load increases2. Stiffness of spring decreases as number of coils decreases in conical springs3. Torsion springs are generally spiral4. Helical torsion springs are used in automobile starters
A.	Statements 1 and 3
B.	Statements 2, 3 and 4
C.	Statements 1, 3 and 4
D.	All of the above
Answer» D. All of the above

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