December

General Sciences: 1 gram-mole of Cl gas at 28˚C and 750 mmHg occupies:

History: This man is known as the “father of occupational medicine.”

Ethics: According to the ABIH Code of Ethics, an IH should not:

Noise: What is the SPL at 200 ft if the SPL at 20 ft is 103 dB?

Ventilation: A critical orifice is dependent upon:

Radiation: What is the nominal hazard zone for a 0.1 W laser with a beam diameter of 0.3 cm, beam divergence of 1 mrad and an exposure limit of 4 x 10^-6 W/cm²?

Heat Stress: Effective temperature is a combination of:

IH Management: An incidence rate includes which of the following information:

Radiation: LASER is an acronym that stands for:

General IH: The settling velocity of a particle is not dependent upon which of the following:

Workplace Hazards: For an individual involved in metal machining, which of the following exposures represents the least risk?

Ventilation: Given the following, what is the FTP? Qin = 12000 ft³/min; SPin = 7.5 inches w.g.; Din = 24 inches; and, Qout = 12000 ft³/min; SPout = 0.5 inches w.g.; Dout = 30 inches

Toxicology: A duration of exposure of 6 months – lifetime would be defined as:

Air Pollution: Which of the following contaminants are not contained in exhaust emissions from a vehicle:

Biological Hazards: Which of the following is not a classification for a BSC (Biological Safety Cabinet)?

General IH: Determine the TLV of a mixture containing 3 chemicals with the following information: Chemical 1 – 25% by weight, TLV = 200 mg/m³<br/> Chemical 2 – 25% by weight, TLV = 400 mg/m³<br/> Chemical 3 – 50% by weight, TLV = 400 mg/m³

Diseases & Conditions: Siderosis is typically associated with exposure to:

PPE: Which level of PPE is defined as: SCBA with hooded chemical resistant suit, gloves and boots?

General Sciences: If 35 gallons of a chemical (TLV = 900 ppm) are spilled in a room 20’ x 50’ x 10’, is the TLV exceeded?

Illumination: An illumination level of 2 foot candles would be sufficient to perform what type of work?

General Sciences: How much chlorine (MW = 70.9) must be added to a 300 L space to produce a resultant concentration of 2.0 mg/m³ in the space (assume NTP)?

Ventilation: For a flanged slot (dimensions 2” x 72”) with Q = 1000 cfm, what is the velocity at 12 inches away from the slot?

Noise: For a noise dosimeter, what term is defined as “the level which noise will not be determined by the meter”?

Radiation: When a nuclide emits an alpha particle, the atomic mass (A) and atomic number (Z) are changed by what values?

Epidemiology: Epidemiological surveillance allows which of the following objectives to be met?

IH Sampling: At what concentration in the backup section of a sorbent tube is breakthrough said to occur?

IH Instrumentation: If you are using a combustible gas detector, and the instruments hits 100% then falls to 0%, what do you infer has occurred?

PPE: One way to avoid leaks into a face mask include:

Ventilation: What is the steady state concentration of a contaminant (MW = 70) if the rate of generation is 3.0 pints/hour and the effective ventilation rate is 1250 cfm (assume NTP)?

General Sciences: Which of the following terms is best defined as a surface phenomenon?