Burns & McDonnell Electrical Designer Interview Questions and Answers

A power transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Power transformers are used to step up or step down voltage levels in electrical power transmission and distribution systems.

• They consist of a primary winding, a secondary winding, and a magnetic core.

• When an alternating current flows through the primary winding, it creates a magne...read more

Forces in a truss structure can be identified by analyzing the external loads and internal member forces.

• External loads such as weight, wind, and seismic forces create tension and compression forces in the truss members.

• Internal member forces can be calculated using the method of joints or method of sections.

• Examples of forces include axial, shear, and bending forces.

• The forces must be balanced for the truss to remain

Stability checks for foundation ensure the safety and durability of the structure.

• Stability checks involve analyzing the soil type, bearing capacity, and settlement potential.

• Designing the foundation based on the load-bearing capacity of the soil.

• Performing structural analysis to ensure the foundation can withstand the loads imposed on it.

• Checking for potential differential settlement and ensuring it is within acceptab...read more

I have recently worked on designing and analyzing the structural integrity of a high-rise building and a suspension bridge.

• Designed and analyzed the structural integrity of a 50-story high-rise building in downtown area

• Conducted a feasibility study and provided recommendations for a suspension bridge project over a river

• Collaborated with architects and contractors to ensure compliance with building codes and safety sta...read more

I recently worked on the design and construction of a new office building.

• Conducted site analysis and feasibility studies

• Developed structural design plans and calculations

• Coordinated with architects and contractors throughout construction process

• Performed regular site visits to ensure adherence to design specifications

• Completed project on time and within budget

Connection design of beam to beam involves selecting appropriate fasteners and designing the connection to transfer loads safely.

• Select appropriate fasteners such as bolts, screws, or welds based on the loads and type of connection.

• Design the connection to transfer loads safely and efficiently.

• Consider factors such as shear, bending, and torsion when designing the connection.

• Ensure that the connection is durable and ca...read more