Topic: Machine Design
Which of the following stresses are associated with the tightening of a nut on a stud?
1. Tensile stresses due to stretching of stud.
2. Bending stresses of stud.
3. Transverse shear stresses across threads.
4. Torsional shear stress in threads due to frictional resistance.
Select the correct answer using the codes given below:
- A. 1, 2 and 3
- B. 1, 3 and 4
- C. 2, 3 and 4
- D. 1, 2 and 4
Answer: B. 1, 3 and 4
Explanation: The tightening of a nut on a stud induces: 1. Tensile stresses due to stretching of the stud. 3. Transverse shear stresses across threads. 4. Torsional shear stresses in threads due to frictional resistance. It does not cause bending stresses.