A cylindrical boiler 1.5 m diameter and made up of 10 mm thick plate is subjected to a steam pressure of 2 N / mm2. The hoop tension and longitudinal stresses will be
1
150 N / mm2 and 75 N / mm2
2
150 N / mm2 and 150 N / mm2
3
75 N / mm2 and 75 N / mm2
4
75 N / mm2 and 150 N / mm2