Bolts in the flanged end of pressure vessel are usually

Home » Machine Design » Machine Design Miscellaneous » Question

Bolts in the flanged end of pressure vessel are usually pre-tensioned. Indicate which of the following statements is true

1. Pre-tensioning helps to seal the pressure vessel
2. Pre-tensioning increase the fatigue life of the bolts
3. Pre-tensioning reduces the maximum tensile stress in the bolts
4. Pre-tensioning helps to reduce the effect of pressure pulsations in the pressure vessels

Correct Option: B

NA