6) What is the centre to centre distance of stirrups at end in R.C.C Lintel?

7) What is ratio of CC used in RCC lintel?

8) What is the name of member, in centering of arches, a thick wooden plank shaped to the curvature of arch and it is supported by props?

9) How many centres are in tudor arches?

10) What is the minimum period for the removal of props to beams for a span of 6 m in formwork?