ECIV 419 Final Prep Quiz 2

True or False: The capacity of reinforced concrete members cannot change along the length of the member.

• True

• False

What happens to the toughness of steel as the temperature decreases?

• Increases

• Decreases

• Remains constant

• Varies unpredictably

Which statement is true regarding the appearance of a weld in determining if a steel member is weldable?

• The appearance of a weld clearly indicates weldability

• The appearance of a weld does not clearly indicate weldability

• The appearance of a weld depends on the steel grade

• The appearance of a weld is unrelated to steel properties

List two potential issues that may result from excessive elastic deformation of steel members.

• Increased durability and reduced maintenance

• Ponding and distressed finishes

• Reduced aesthetic appeal and vibrations

• Improved structural performance and ponding

Does increasing the yield strength of a steel member decrease unwanted vibrations in a building being converted from warehouse to office space?

• Yes, because it enhances the stiffness of the structure

• No, because it does not affect the stiffness of the structure

• Yes, because it reduces the weight of the structure

• No, because it increases the flexibility of the structure

Which type of restraint increases the likelihood of brittle fracture of steel members?

• High restraint

• Low restraint

• No restraint

• Moderate restraint

Describe a condition where further review is not needed when a bay of open web steel joists is installed with the joist tag side opposite of what is shown on the construction documents.

• When the loading conditions are symmetrical

• When the loading conditions exceed the design specifications

• When the joists are used in non-critical areas

• When the joists are exposed to corrosive environments

Name two time-dependent changes in concrete that will increase in severity with a higher cement paste to aggregate ratio.

• A) Creep and shrinkage

• B) Hardening and expansion

• C) Settling and hydration

• D) Curing and bleeding

As the engineer of record, would you approve the use of epoxy-coated rebar if it was not specified in the construction documents but delivered to the site?

• A) Yes, without any additional verification

• B) No, unless verified through additional calculations

• C) Yes, if it does not affect the budget

• D) No, if it changes the structural design

What is the correct description of prestressed concrete strands in terms of their sloped configuration?

• Draped

• Harped

• Straight

• Twisted