engineering recuitment GATE ME 2023-24 Test Series Design of Machine Elements Welded, Riveted and Bolted Joints Bolted Joint
Consider the following statements regarding the ends of the pressure vessels flanged by pre-tensioned bolts:
1. Pre-tensioning helps to seal the pressure vessel.
2. Pre-tensioning reduces the maximum tensile stress in the bolts.
3. Pre-tensioning countermands the fatigue life of the bolts.
4. Pre-tensioning helps to reduce the deleterious effect of pressure pulsations in the pressure vessel.
Which of the above statements are correct?1
1, 2 and 3 only
2
1, 3 and 4 only
3
2 and 4 only
4
1, 2, 3 and 4