Consider the singly reinforced beam shown in the figure below:

At cross-section $$XX,$$ which of the following statements is TRUE at the limit state?

The development length of a deformed reinforcement bar can be expressed as $$\left( {1/k} \right)\left( {\phi {\sigma _s}/{\tau _{bd}}} \right).$$

From the $$IS:$$ $$456$$-$$2000,$$ the value of $$k$$ can be calculated as _________________.

A bracket plate connected to a column flange transmits a load of $$100$$ $$kN$$ as shown in the following figure. The maximum force for which the bolts should be designed is _______ $$kN$$

Two triangular wedges are glued together as shown in the following figure. The stress acting normal to the interface, $${\sigma _n}$$ is _____$$MPa.$$