Building Engineering Structural Analysis and Design

Question 1

What is the difference between dead load and live load in structural engineering?

Accepted Answer

Dead load is the weight of permanent structure; live load is variable occupancy and use loads

Answer

Dead load changes over time; live load is constant

Answer

Dead load includes wind forces; live load includes snow only

Answer

Dead load is applied at specific points; live load is uniformly distributed

Question 2

What structural system uses diagonal members to resist lateral forces in a steel frame building?

Accepted Answer

Braced frame

Answer

Moment frame

Answer

Shear wall

Answer

Diaphragm system

Question 3

What is the purpose of a foundation in a building structure?

Accepted Answer

To transfer building loads safely to the supporting soil or rock below

Answer

To resist lateral forces from wind and earthquakes

Answer

To provide a flat working surface for construction

Answer

To waterproof the below-grade portion of the building

Question 4

Which structural material is strongest in tension but weak in compression?

Accepted Answer

Steel reinforcement (rebar)

Answer

Plain concrete

Answer

Masonry block

Answer

Timber

Question 5

What is the modulus of elasticity (E) used for in structural engineering calculations?

Accepted Answer

To relate stress to strain and calculate member deflection

Answer

To determine the maximum stress before failure

Answer

To calculate the weight of structural members

Answer

To measure the ductility of a material under load

Question 6

What does the term 'factor of safety' mean in structural design?

Accepted Answer

The ratio of a structure's capacity to the actual applied load

Answer

The percentage of extra material added during construction

Answer

The number of load combinations checked in design

Answer

The ratio of dead load to live load