NAME

B$.$ For questions $5$ through $8,$ consider the simple beam below with a downward moving unit load, supported with a hinge at A and a roller at $C.$ Based on the shape of the four influence lines below the simple beam, answer the questions.

a b

$5.$ W

$($a$)a$

$x$

d$.$

$6.$ Which diagram shows the influence line for the shear at $B?$

$($a$)$ a

$($b$)b$

$($c$)c$

$($d$)$ none of the others

$7.$ Which diagram shows the influence line for the moment at $B?$

$($a$)$ a

$($b$)b$

$($c$)c$

$($d$)$ none of the others

$8.$ Which diagram shows the influence line for the horizontal reaction at $A?$

$($a$)$ a

$($b$)b$

$($c$)c$

$($d$)$ none of the others