(a) Draw the influence line for the moment at B (Figure P14.4). (b) If the beam carries a...

(a) Draw the influence line for the moment at B (Figure P14.4). (b) If the beam carries a uniformly distributed live load of 2 kips/ft that can act on all or part of each span as well as a concentrated live load of 20 kips that can act anywhere, compute the maximum moment at B. (c) Determine the maximum value of live load moment at B produced by the set of wheel loads.