A team of students belonging to SME have designed a project which deals with the investigation of cracks in a thin cylinder with the aid of an electromagnet and strain gauge. For this, a closed thin cylinder was designed and fabricated to take the shape of a pressure vessel. The closed cylinder was then equipped with valve that allows unidirectional flow of fluid (that is air in this case). Air is given to the cylinder with the help of a foot pump. The pressure is determined with the help of pressure gauge mounted on the top of cylinder. The internal pressure results in the enlargement of cracks and production of strain. Once the position of crack is determined its depth can also be found out by the help of strain gauge. With these information, it can be figured out whether the vessel is safe for use and what can be done to increase the life of pressure vessel or pipes.