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(A) Fill in the Blanks, 1. Concrete is very weak in, 2. The unit weight of R.C.C. is, 3. Concrete is graded on the basis of, bars, , are, , preferred, , over, , mild steel bars., , 5. In R.c.C., steel reinforcement takes up, should, 6 Concrete grades lower than, 7. One bag of cement in India weighs, 8. HYSD bars are also known as, , 9., , stressesS., not, , be used for R.C.C. work., , kg., , steel, , method is based upon, Working, 10. The modulus of elasticity 'of steel is taken, stress, , theory, N/mm"., , (B) State True/False, 1. Concrete is strong in tension and, , compression, , 2. Cement is, , 3., , graded on the basis of compressive strength., High strength steel is more ductile than mild steel., , 4. R.C.C. structures, 5., , R.C.C. sections, , heavier than steel structures., thicker as compared to plain concrete sections., , are, , are, , 6. TMT bars have excellent ductility., 7. Dead loads are temporary loads., , (C) Multiple Choice Questions, 1. The reinforcement in R.C.C. takes, , (a) Tensile stresses, , (b) Compressive stresses, (d) Torsional stresses, , (c) Shear stresses, 2. The coefficient of thermal, , (a) Wood, (c) Steel, , expansion, , of concrete is, , b) Aluminium, (d) Copper, , nearly equal, , to

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3. The, , minimum, , compressive strength, , of 43, , grade OPC, , cement is, , (h 43 N/mm, , a) 43 N/m, (c) 43 kg/m, , d) 43 kg/mm, , 4. IS 456 recomments, a) Working stress method of, , design th) Ultimate load method of design, (c) Limit state nethod of design, (dy Nonc of the ahove, , 5. The, (a), , yield, , stress divided, , Ultimate stress, , (c) Elastic stress, , by the factor of safety is called, (b) Limit stress, (dy Permnissible stress, , s