V&V Engineer Interview Questions and Answers

Signalling interlocking principles ensure safe train movements by preventing conflicting routes.

• Interlocking is a safety system that prevents conflicting train movements

• It ensures that only one train can occupy a section of track at a time

• Interlocking principles are based on track layout and signalling equipment

• The system uses logic circuits to control signals and points

• Examples of interlocking systems include mechanical, electrical, and electronic

• Interlocking is a critical c...read more

V&V stands for Verification and Validation. HSIT stands for Hardware-in-the-Loop Simulation and Testing.

• V&V is the process of ensuring that a product, service, or system meets the requirements and specifications.

• Verification involves checking that the product is being built right, while validation involves checking that the right product is being built.

• HSIT is a testing technique that involves testing a system or component using simulated hardware rather than actual hardware....read more

DO-178B is a software standard for the certification of airborne systems.

• DO-178B is a guideline for developing software in airborne systems.

• It defines the software development process, verification, and validation.

• Compliance with DO-178B is required for certification of software in avionics.

• It has different levels of compliance ranging from A to E.

• Examples of DO-178B compliant software include flight control systems and navigation systems.