ETC ETC Structural Analysis & Load Calculations

Question 1

In structural engineering, what is dead load?

Accepted Answer

The permanent, static weight of the structure and fixed components

Answer

Dead load is the constant gravity load from the structure's own weight and permanently attached elements such as roofing, flooring, and fixed mechanical equipment.

Question 2

What does live load represent in structural design?

Accepted Answer

Variable loads from occupancy, furniture, and equipment that can change over time

Answer

Live loads account for the variable forces from building use, including people, furnishings, vehicles, and equipment, as specified in ASCE 7.

Question 3

What is the standard unit of stress in US customary structural engineering calculations?

Accepted Answer

Pounds per square inch (psi) or kips per square inch (ksi)

Answer

Stress in US customary engineering is expressed in psi for low-strength materials and ksi (kips per square inch) for steel.

Question 4

What is the purpose of a factor of safety in structural design?

Accepted Answer

To account for uncertainties in loads, material properties, and workmanship

Answer

A factor of safety multiplies the applied load or divides the material strength to ensure a structure can handle unexpected overloads and material variability.

Question 5

In beam design, what is bending moment?

Accepted Answer

The internal force that causes a beam to bend, equal to the sum of moments about a cross section

Answer

Bending moment at any cross section of a beam is the algebraic sum of all moments caused by forces acting on one side of that section.

(ETC) Engineering Technician Certification Practice Test

(ETC) Engineering Technician Certification Practice Test

ETC ETC Structural Analysis & Load Calculations