In a cantilever beam loaded at the free end, the bending moment at the fixed support is _______.

• Zero

• Maximum

• cannot be determined

In a cantilever beam loaded at the free end, the bending moment at the free end is ______

• Zero

• Maximum

• Cannot be determined

In a simply supported beam with concentrated load at the midspan, the maximum bending moment occurs at the ________.

• end supports

• midspan

• cannot be determined

In a simply supported beam with concentrated load at the midspan, the bending moment at the end supports is ________.

• Zero

• Maximum

• Cannot be determined

A positive bending moment tends to bend the beam in a ________ direction.

• concave downward

• concave upward

• none of these