CIH Practice Test 5

10 free CIH practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

CIH Practice Test 5Tutor mode

Question 1 of 10

Exposure Assessment Principles and Practice

Estimate the terminal settling velocity in still air of a 5.0-µm quartz particle (density 2.65 g/cm³). Use air viscosity η = 1.81 × 10⁻⁴ g/(cm·s), g = 981 cm/s², and neglect air density.