SCE Structural Engineering 2

Question 1

In steel design, the term 'compact section' means that the section can:

Accepted Answer

Develop full plastic moment capacity before local buckling

Answer

Carry only elastic moment without yielding

Answer

Resist lateral-torsional buckling without bracing

Answer

Withstand any load without deflection limits

Question 2

For a fixed-fixed beam with a central point load P and span L, what is the fixed-end moment at each support?

Accepted Answer

PL/8

Answer

PL/4

Answer

PL/12

Answer

PL/6

Question 3

Which of the following increases the critical buckling load of a column?

Accepted Answer

Reducing the effective length factor K

Answer

Increasing the column's unsupported length

Answer

Using a material with lower modulus of elasticity

Answer

Reducing the moment of inertia of the cross-section

Question 4

In reinforced concrete, the purpose of stirrups (shear links) in a beam is to:

Accepted Answer

Resist diagonal tension (shear) and confine the concrete core

Answer

Prevent longitudinal bars from corroding

Answer

Increase the flexural capacity of the section

Answer

Reduce the beam's self-weight

Question 5

The degree of static indeterminacy of a propped cantilever (fixed at one end, pinned at other, single span) is:

Accepted Answer

1

Answer

2

Answer

3

Answer

0

Question 6

What is the primary function of the neutral axis in a flexural member?

Accepted Answer

It is the axis where bending stress is zero, separating tension and compression zones

Answer

It is the axis of maximum shear stress in the section

Answer

It is the centroidal axis of the reinforcement

Answer

It is the axis about which the section is symmetric

Question 7

In the context of soil-structure interaction, a 'pile foundation' is preferred over a 'shallow foundation' when:

Accepted Answer

The soil near the surface has insufficient bearing capacity to support the structural loads

Answer

The structure has very light loads that need minimal foundation depth

Answer

The water table is well below the foundation level

Answer

The structure is a single-storey building on dense gravel