Compression Test
1. Ends of the specimen should be plain.
2. In universal testing machine, for a circular section specimen, the gauge length is taken to be ______________ where A is the area of cross section of the specimen.
3. In the compression test on mild steel, the ultimate strength of a specimen 1 with cross sectional area A is obtained as T.A specimen 2 of mild steel with cross sectional area 2A and height of the specimen same as the specimen 1 compression test is conducted. The ultimate strength of the specimen 2 is