You are incorrect.
2 is incorrect because a sound level meter would be used to measure noise levels at a worksite.
3 is incorrect because dosimetry does not measure HPD attenuation.
4 is incorrect because dosimetry measures the noise exposure for a person, and not a piece of equipment.
References
Fligor, B., Chasin, M., & Neitzal, R. (2015). Noise exposure. In Katz, J., Chasin, M., English, K. M.,
Hood, L. J., & Tillery, K. L. (Eds.), Handbook of clinical audiology (pp. 595-596) (Vol. 7). Philadelphia, PA: Wolters Kluwer Health.
You are correct!
This is the measure to determine an individual’s noise exposure over a specific time period.
References
Fligor, B., Chasin, M., & Neitzal, R. (2015). Noise exposure. In Katz, J., Chasin, M., English, K. M.,
Hood, L. J., & Tillery, K. L. (Eds.), Handbook of clinical audiology (pp. 595-596) (Vol. 7). Philadelphia, PA: Wolters Kluwer Health.