Wabtec Test Engineer Interview Questions, Process, and Tips

Power flow analysis is a method used in electrical engineering to determine the steady-state operating conditions of a power system.

• It involves calculating the voltage magnitude and phase angle at each bus in a power system.

• Power flow analysis helps in determining power losses, line flows, and voltage stability.

• Different methods like Gauss-Seidel, Newton-Raphson, and Fast Decoupled are used for power flow analysis.

• The ...read more

The brake system functions to slow down or stop a vehicle by converting kinetic energy into heat through friction.

• Converts kinetic energy into heat through friction

• Consists of components such as brake pads, rotors, calipers, and brake fluid

• Operates through hydraulic pressure or mechanical force

• Helps maintain control and stability of the vehicle during braking

• Different types include disc brakes and drum brakes

Bug cycle is the process of identifying, reporting, tracking, and resolving software defects.

• Bug is identified by testers during testing phase

• Bug is reported to the development team

• Development team reproduces the bug

• Bug is assigned to a developer for fixing

• Developer fixes the bug and sends it back to the testing team

• Testing team verifies the fix and closes the bug

SDLC cycle is a process followed by software development teams to design, develop, test, and deploy high-quality software.

• SDLC stands for Software Development Life Cycle

• It consists of several phases such as planning, analysis, design, implementation, testing, and maintenance

• Each phase has its own set of activities and deliverables

• The goal of SDLC is to ensure that the software meets the customer's requirements and is o...read more