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: How do you identify the source of a vibration in an automotive component using vibration analysis?

Which action should you take?

Choose only one option

By measuring vibration at various points on the component and comparing frequency signatures

By relying solely on thermal measurements

By visually inspecting the component

By using only accelerometers without comparing data

Question 3: What is the purpose of modal analysis in NVH testing, and how is it applied in automotive development?

Which action should you take?

Choose only one option

To reduce the total weight of the vehicle's components

To measure the overall sound level of the vehicle

To identify the natural frequencies and mode shapes of the vehicle's structure, helping to mitigate resonances

To measure the fuel efficiency of the vehicle

Question 4: How does the use of active noise control (ANC) technology enhance sound quality in automotive cabins?

Which action should you take?

Choose only one option

By using speakers to emit sound waves that destructively interfere with unwanted noise, reducing overall cabin noise levels

By physically isolating the cabin from external noise

By tuning the vehicle's acoustic properties through structural modifications

By increasing the sound insulation materials in the cabin

Question 5: How do you reduce high-frequency road noise that enters the cabin through windows and doors?

Which action should you take?

Choose only one option

By reducing the size of the windows

By using thicker windows, improved sealing systems, and sound-absorbing materials in the door panels

By using lighter materials for the windows

By increasing the vehicle's speed

Question 6: What is the purpose of using a sound intensity probe during NVH testing in automotive applications?

Which action should you take?

Choose only one option

To detect faults in the acoustic insulation material

To record the vibration frequency of vehicle components

To measure the internal temperature during operation

To measure the intensity and direction of sound waves emitted from sources