ICC Structural Codes 3

Question 1

What maximum live load deflection does the IBC permit for floor structural members supporting plaster ceilings?

Accepted Answer

L/360

Answer

L/180

Answer

L/240

Answer

L/480

Question 2

Per ASCE 7, what base multiplying factor converts the ground snow load (Pg) to a flat roof snow load (Pf) before applying the exposure, thermal, and importance factors?

Accepted Answer

0.7

Answer

0.5

Answer

0.8

Answer

1.0

Question 3

In seismic base shear calculations per ASCE 7, what does the 'R' factor represent?

Accepted Answer

The response modification factor reflecting a system's ductility and overstrength

Answer

The redundancy coefficient penalizing non-redundant lateral systems

Answer

The roof live load area reduction factor

Answer

The risk importance factor based on occupancy category

Question 4

Which chapter of the IBC establishes requirements for special inspections, structural observations, and material testing to verify structural compliance during construction?

Accepted Answer

Chapter 17 — Special Inspections and Tests

Answer

Chapter 4 — Special Detailed Requirements Based on Occupancy and Use

Answer

Chapter 11 — Accessibility

Answer

Chapter 23 — Wood

Question 5

In seismic structural design, what does 'ductility' refer to?

Accepted Answer

A structure's ability to undergo large inelastic deformations without losing its load-carrying capacity

Answer

A material's resistance to compressive crushing failure

Answer

A structure's resistance to wind-induced uplift forces on the roof

Answer

The thermal expansion behavior of structural steel under fire exposure

Question 6

Under IBC seismic provisions, for which Seismic Design Categories is a geotechnical investigation generally required?

Accepted Answer

SDC C through F, where elevated seismic hazard demands site-specific soil evaluation

Answer

SDC A and B only, where lower seismic risk warrants precaution

Answer

All SDC categories regardless of local seismic hazard level

Answer

SDC F only, reserved for the most critical essential facilities

Question 7

According to ASCE 7, how are basic wind speeds for structural design determined?

Accepted Answer

From site-specific wind speed maps that vary by geographic location and building risk category

Answer

A uniform national minimum of 90 mph is applied everywhere in the contiguous United States

Answer

By averaging official wind records from the nearest National Weather Service station

Answer

By applying a single standard of 110 mph to all Risk Category II buildings regardless of location