15.The bending moment at mid-span of a simply supported beam under central load is

16.Sulphate attack in concrete causes

17.Free float can never be

18.UV disinfection is effective mainly against

19.Temporary adjustment of a level includes

20.The moment distribution method satisfies

1.The main purpose of adding gypsum to cement is to

2.The cost slope in time–cost optimization represents

3.Groundwater mound formation occurs due to

4.A back bearing of a line differs from fore bearing by

5.In a two-hinged arch, the degree of static indeterminacy is

6.Fibre-reinforced concrete improves

7.A critical activity always has

8.The detention period of sedimentation tanks is usually

9.The most suitable method for transferring RL across a river is

10.In a determinate structure, internal forces depend only on

11.Carbonation depth in concrete increases with

12.The backward pass in CPM is used to compute

13.The presence of E. coli in water indicates

14.Tacheometric distance depends on