A steel tube with an internal bore of 10 cm and wall thickness of 1.5 mm is plugged at both ends to form a closed cylinder 300 mm in length. The cylinder is filled with oil and subjected to a compressive load of 60 KN. The document asks to determine the pressure produced on the oil and the resulting circumferential stress in the tube, providing material properties. It also asks about stresses in a steel pipe 30 cm in diameter and 6 mm thick under an internal pressure of 2.8 MPa, and the additional stresses from winding it with wire under tension.