VIP Exclusive
CIH VIP Certification Exam
CIH — The Certified Industrial Hygienist (CIH) examination is administered by the American Board of Industrial Hygiene (ABIH); the full exam consists of 200 scored multiple-choice items delivered over 5 hours, with a scaled passing score of 500 on a 200–800 scale, covering 18 content domains including air sampling, toxicology, noise, ventilation, radiation, ergonomics, and regulatory affairs.
29
Questions
300m
Time Limit
70.00%
To Pass
Question 1 of 29👑 VIP
A worker is exposed to toluene during a 10-hour shift. Air monitoring shows the following results: 8:00–10:00 AM = 150 ppm; 10:00 AM–12:00 PM = 80 ppm; 12:00–1:00 PM = 0 ppm (lunch break, away from area); 1:00–6:00 PM = 110 ppm. The OSHA PEL for toluene is 200 ppm (8-hr TWA). Which calculation correctly determines the 8-hour TWA, and is the worker overexposed?
Questions 2–29 and full explanations are VIP-exclusive.