Preview Questions NVH Engineer | Role Specific Skill

Question 1: In automotive NVH testing, why is it important to regularly recalibrate measurement equipment such as accelerometers and microphones?

Which action should you take?

Choose only one option

To maintain measurement accuracy and reliability over time

To adjust for wear and tear of the equipment

To update the equipment firmware

To comply with legal regulations only

Question 2: What is the primary function of using a dynamic signal analyzer during NVH calibration?

Which action should you take?

Choose only one option

To analyze the frequency response and spectral content of signals from sensors

To provide a temperature-compensated signal output

To measure the actual noise levels generated by the vehicle components

To calculate the total vibration energy generated by components

Question 3: In the context of NVH, what is a "coherence function," and what does it indicate in vibration analysis?

Which action should you take?

Choose only one option

It indicates the phase shift between input and output signals

It measures the synchronization between two vibration signals, indicating if they share a common source

It represents the power distribution across different frequencies

It quantifies the damping ratio of a vibration mode

Question 4: In NVH testing, which calibration technique is essential for ensuring accurate alignment of accelerometers on automotive components?

Which action should you take?

Choose only one option

Phase Calibration

Spatial Calibration

Amplitude Calibration

Frequency Calibration

Question 5: How does active noise cancellation (ANC) work in automotive applications, and how is it integrated into vehicle systems?

Which action should you take?

Choose only one option

ANC is used only to improve engine performance

ANC uses microphones and speakers to generate sound waves that cancel out unwanted noise, often applied in the cabin

ANC uses only soundproof materials to block external noise

ANC works by amplifying the noise inside the vehicle

Question 6: In NVH testing, how do you ensure that microphone placement does not affect the sound quality of measurements?

Which action should you take?

Choose only one option

By following established guidelines for microphone placement and ensuring consistent positioning during testing

By placing the microphone near the engine for clearer sound measurement

By moving the microphone around until the noise level is at its highest

By focusing only on cabin noise measurements