vertical direction

horizontal direction

inclined direction

the direction in which the deflection is required

only (i)

(i)and(ii)

(ii) and (iii)

(i), (ii) and (iii)

the beam is prismatic

there is no settlement of supports

there is no discontinuity such as hinges within the span

the spans are equal

zero length

infinite length

zero moment of inertia

none of the above

in statically determinate structures only

for any type of structure

at the point under the load only

for beams and frames only