25) A body is subjected to a tensile stress of 1200 Mpa on one plane and another tensile stress of 600 Mpa on a plane at right angles to the former. It is also subjected to a shear stress of 400 Mpa on the same planes. The maximum normal stress will be

29) The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2 , is

30) The flow of water through the hole in the bottom of a wash basin is an example of

31) The stress which vary from a minimum valu e to a maximum value of the same nature (i.e. tensile or compressive) is called

32) Carburising flame is used to weld