OSHA Inspections and Citations practice questions for the CHST exam

During an OSHA inspection of a roadway tunnel project, a compliance officer is escorted by the project's safety manager. The officer wants to attach air sampling pumps to two welders to measure their exposure to welding fumes. The general contractor's superintendent objects, saying the officer may only look at conditions and photograph them, and that the officer should not be allowed to put equipment on employees. Based on the standard, how should the superintendent's objection be assessed?

1. A.The objection is not valid, but the pumps may be attached only after the closing conference, when the employer has been informed of apparent violations
2. B.The objection is valid unless the officer first obtains written consent from each welder to wear the sampling equipment
3. C.The objection is not valid, because reasonable investigative techniques include attaching personal sampling equipment such as pumps to employees to monitor their exposures
4. D.The objection is valid, because the officer's authority is limited to photographs and environmental samples taken from the work area, not from employees