CIH Exam Question
CIHExam Preparation Quiz
Test your knowledge and readiness for the Certified Industrial Hygienist (CIH) exam with our engaging quiz! This quiz covers essential topics on occupational health and safety, including exposure limits, respiratory protection, and chemical hazards.
Whether you are a student or a professional looking to refresh your skills, this quiz is perfect for you. Key highlights include:
- 10 challenging multiple-choice questions
- Immediate feedback on your answers
- Coverage of critical themes in industrial hygiene
The most efficient instrumental technique for the qualitative determination of the elemental content (presence or absence of specific elements) of a dust sample is:
A. High performance liquid chromatography
B. Gas chromatography
C. X-ray diffraction
D. UV spectrophotometry
E. Atomic absorption spectrophotometry
F. Emission spectroscopy
In a work are the noise levels are 95 dBA for two hours, 90 dBA for four hours,
and 80 dBA for two hours. Does this exceed the allowable OSHA limits?
Yes
NO
A respirator protection factor of 100 means:
A. The concentration of a contaminant outside the respirator should not exceed 100 time the TLV or OSHA PEL
B. The respirator will last 100 times longer than one with a protective factor of 1
C. The concentration inside the mask is not expected to exceed 1/100th of the concentration outside the mask
D. A and c only
E. All of the above
Which of the following is not a limitation of chemical cartridge
respirators:
A. Prohibited use in oxygen-deficient atmospheres
B. Limited to less than 10 X TLV
C. Limited to less than 5 X the TLV without a fitting test
D. Prohibited for use in IDLH atmospheres
E. All are limitations
A room ha been calculated to require 5 air changes per hour to ventilate it. Which statement best describes the situation?
A. This is not sufficient since 10 air changes per hour is only considered to be a “fair” ventilation rate
B. The rate is adequate if only solvents with a TLV of more than 200 ppm are used in the room
C. The exhaust rate of a 3 sq. ft. Fan must be 5000 cfm to accomplish this
D. The selection of the fan and fan speed are dependent on knowing the dimensions of the room
E. The room is very large, because such a small ventilation rate is needed
Which of the following is not a simple asphyxiant?
A. CH4
NR
AR
C2H4
C2H2
Which form of silica has the lowest TLV?
Crocidolite
B. cristobalite
C. chrysotile
D. tridymite
E. Crystaline quartz
F. fused
G. Two or more of the above have the same lowest value
You have one machine which generates 98dB noise You add another which produces 96dB.What is the new reading?
A. 97dB
B. 98 dB
C. 99 dB
D. 100 dB
Which of the following is not likely to cause systemic effects when absorbed through the skin:
A. pentaborane
B. TNT
C. tetraethyllead
D. phenol
E. cyclohexane
A TLV posted in the notice of intended changes becomes "adopted" after _______ years if no further action is taken by ACGIH.
1
2
3
D. Adoption requires specific action
E. None of the above
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