SITUATION $03$:

A rectangular column is subjected to an axial load Pu which causes bending on both axis where $Pnx=615\mathrm{.}6KN,Pny=461\mathrm{.}7KN$ and $Po=2822KN.f{c}^{\text{'}}=17\mathrm{.}25$MPa, fy $=276$MPa and strength reduction factor of $0\mathrm{.}65.$

$7.$ Which of the following gives the value of nominal axial load at a given eccentricity using Bresler equation?

$($a$)291$ KN

b$.189$ KN

c$.400$ KN

d$.300$ K

$8.$ Which of the following gives the value of factored axial load at a given eccentricity?

a$.291$ KN

b$.189$ KN

c$.400$ KN

d$.300$ KN

$9.$ If $Pn=300KN,$ which of the following gives the value of nominal axial load strength at zero eccentricity?

a$.2291$ KN

$($b$.)2188$ KN

c$.1400$ KN

d$.1300$ KN

SITUATION $04$:

The square concrete column $450mm450mm$ is reinforced with $8-$D$28$ bars spaced evenly on all sides. Concrete cover is $40$ mm $,$ stirrups used are $12$ mm in diameter. Use $f{c}^{\text{'}}=21$MPa and $fy=415$MPa.

$10.$ What is the nominal balance $19$ in KN $?$

a$.767$

b$.153$

c$.1528$

d$.1050$

$11.$ What is the balance eccentricity in mm $?$

a$.287$

b$.159$

c$.446$

d$.225$

$12.$ What is the nominal balance moment in $KN-m?$

$($a$.)440$

b$.244$

c$.684$

d$.200$