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

Pre-tensioning reduces the maximum tensile stress in the bolts

Pre-tensioning helps to seal the pressure vessel

Pre-tensioning increase the fatigue life of the bolts

Pre-tensioning helps to reduce the effect of pressure pulsations in the pressure vessels

Bolts in the flanged end of pressure vessel are usually pre-tensioned.

1.	Bolts in the flanged end of pressure vessel are usually pre-tensioned. Indicate which of the following statements is true
A.	Pre-tensioning helps to seal the pressure vessel
B.	Pre-tensioning increase the fatigue life of the bolts
C.	Pre-tensioning reduces the maximum tensile stress in the bolts
D.	Pre-tensioning helps to reduce the effect of pressure pulsations in the pressure vessels
Answer» C. Pre-tensioning reduces the maximum tensile stress in the bolts

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

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