Apparatus made up of M.S. plate of rectangular section of 3mm thick X 40cm wide. Frame is provided with a provision to achieve different end conditions viz. hinged, roller & fixed. The size of portal will be 40cm X 60 cm. Portal may also have a provision for pulley arrangement and hook arrangement for horizontal loading at different positions. A dial gauge with 25mm travel (with a magnetic base) is supplied with the apparatus. Apparatus will be supplied complete with a supporting stand and a set of weights.