181) Consider the following statements : The use of relatively weak mortar 1.will accommodate movements due to loads and, cracking if any, and will be distributed as thin hair cracks which are less noticeable or harmful. 2.will result in reduction of stresses due to differential expansion of masonry units. Of these statements

182) In the case of panel wall subjected to horizontal loads at right angles to the plane of the wall, with the mortar not leaner than Ml type, tensile stress in bending in the vertical direction may be allowed to the extent of

183) For strengthening a 50 m long and 5 m high straight compound wall built in brick work, which one of the following would be most suitable

184) Consider the following statements: A high lime content in a composite cement-lime mortar results in 1.slow hardening. 2.quick setting. 3.weaker mortar. Of these statements

185) The mortars used for masonry construction are classified based on strength in IS 2250 and IS 1905 according to their designations L1,L2, H1, H2, M, M2. The correct sequence of increasing order of their strengths is