149) For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is

150) Muller Breslau′s principle for obtaining influence lines is applicable to i) trusses ii) statically determinate beams and frames iii) statically indeterminate structures, the material of which is elastic and follows Hooke′s law iv) any statically indeterminate structure The correct answer is

151) If the ratio of center to center spacing of intersecting walls to actual thickness of intersecting wall is more than 20, then the stiffening coefficient for wall proper will be

152) Maximum slenderness ratio of load bearing walls for a dwelling having more than 2 storeys (i) shall not exceed 12 if lime mortar is used (ii) shall not exceed 18 if cement lime mortar 1:2:9 is used (iii) shall not exceed 24 if cement mortar 1:6 is used Of these statements

153) Where a structural component or a system is providing lateral support to five or more walls or columns, the lateral load to be resisted may be taken as___(%) of the total vertical load on the most heavily loaded wall or column in the group.