The beam shown below is:

a$.$ subjected to a uniform dead load of $200l\frac{b}{f}t$ and a uniform live load of $150l\frac{b}{f}t.$ Determine the maximum positive shear these loads develop at D $.$ Draw the distributed loads on the beam where they would act for this case.

b$.$ subjected to a uniform distributed live load of $150l\frac{b}{f}t$ and a concentrated live load of $35$ k $.$ Determine the maximum moment developed at A $.$ Draw the live loads on the beam where they would act for this case.