128. A web plate is called unstiffened if the ratio of clear depth to thickness is less than

129. The distance between c.g. of compression and e.g. of tension flanges of a plate girder, is known as

130. In case horizontal stiffeners are not used, the distance between vertical legs of flange angles at the top and bottom of a plate girder, is known as

132. When the depth of a plate girder is at least n times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if n is

133. The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web, is less than

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