THEORY OF STRUCTURES QUIZ

If tensile stress is equal to axial stress, the section experiences compressive stress

If tensile stress is less than axial stress, the section experiences compressive stress

The moment of inertia is calculated about the axis about which bending takes place

All of these

ML²/3EI

ML²/2EI

ML/EI

ML/2EI

All of these

A uniformly distributed load ? per unit run over its right half span, is ? ?R/?

A distributed load varying from zero at the left end to ? per unit horizontal run at the right end, is ? ?R/?

A uniformly distributed load ? per unit run over its entire span is 4/3 ?R/?

An isolated load at mid span

None of these

A load varying linearly from zero at one end to w at the other end

A uniformly distributed load w/unit length

Guest or Trecas

Von Mises

Rankine

St. Venant

4

2

1

3

W²L/AE

WL/AE

W²L/2AE

WL/2AE

At one quarter span

Anywhere in the rib

At the crown

None of these

y = 3h/l² × (1 – x)

y = h/l² × (1 – x )

y = 4h/l² × (1 – x)

y = 2h/l² × (1 – x)

1.25

2.5

1

1.5