BCE Bachelor of Civil Engineering 5

Question 1

In prestressed concrete, post-tensioning differs from pre-tensioning in that:

Accepted Answer

Tendons are stressed after the concrete has hardened

Answer

In post-tensioning, tendons are placed in ducts and stressed against the hardened concrete after it reaches sufficient strength.

Question 2

Which soil classification system is most widely used in geotechnical engineering practice in the United States?

Accepted Answer

Unified Soil Classification System (USCS)

Answer

The Unified Soil Classification System (USCS) per ASTM D2487 is the standard system used in geotechnical engineering to classify soils by grain size and plasticity.

Question 3

The 'Bernoulli equation' in fluid mechanics assumes which of the following conditions?

Accepted Answer

Incompressible, inviscid, steady flow along a streamline

Answer

Bernoulli's equation is derived under the assumptions of steady, incompressible, inviscid flow along a streamline.

Question 4

In structural steel design, the 'compact section' classification ensures that a beam can:

Accepted Answer

Develop full plastic moment without local buckling

Answer

A compact section has sufficiently stocky flanges and web to allow the section to reach its plastic moment capacity (Mp) before local buckling occurs.

Question 5

Peak hour factor (PHF) in traffic engineering is used to:

Accepted Answer

Convert peak 15-minute flow rates to hourly volumes

Answer

PHF relates the highest 15-minute volume within the peak hour to the total hourly volume, accounting for traffic peaking within the hour.

BCE - Bachelor of Civil Engineering Practice Test

BCE - Bachelor of Civil Engineering Practice Test

BCE Bachelor of Civil Engineering 5