Certified Industrial Hygienist Practice Test

These questions are part of the practice quiz. Start practicing

• What is the weight of one kilogram in pounds?
• Which of the following describes TSCA?
• What is the purpose of isokinetic sampling in industrial hygiene?
• Which metals are most commonly associated with metal fume fever?
• How is dose calculated in terms of irradiance and time?
• What noise frequency range do solid barriers most effectively control?
• Combining TCE exposure with ethanol is known to produce which effect?
• What is the acute effect of exposure to elemental mercury?
• What is the size range for respirable dust particles?
• What unit is used to express the Noise Insulation Factor for absorption?
• What is the size range for smoke particles?
• What does the probability formula for independent events demonstrate?
• Which sampling method enhances the collection of larger particles in air quality monitoring?
• What is the TLV for static magnetic fields for whole body exposure?
• What is the PF for a supplied air full face piece continuous respirator?
• What percentage of lead is stored in the bones?
• What is a common effect of phosphorous exposure on the central nervous system?
• What does a Type 1 error indicate in hypothesis testing?
• How many liters are equivalent to one meter cubed?
• What is a significant effect of tetraethyl lead?
• What is a noted effect of organic mercury exposure?
• What is the primary objective of the Resource Conservation and Recovery Act (RCRA)?
• Which material is used for shielding against alpha radiation?
• Which health effects are primarily linked to formaldehyde exposure?
• What is the threshold limit value (TLV) for deep body temperature under cold stress?
• What does the nominal hazard zone (NHZ) refer to?
• What is a notable effect of heavy exposure to vanadium?
• Which system does Methylene chloride depress that can lead to health issues?
• What is the significance of the gas constant R in thermodynamics?
• Which laser class has an output power of less than 5 mW?
• Which method cannot be used for OSHA compliance according to the rules?
• Which toxic metal is most commonly linked to granulomatous lesions?
• What does the measurement unit lumen represent?
• What type of liability is associated with CERCLA?
• What is indicated by the term tenth value layer (TVL) in radiation protection?
• How many feet are in one meter?
• What aspect of sound does the term 'Sound Power Level' refer to?
• What is the EPA radon action level in picocuries?
• Methyl ethyl ketone (MEK) exposure is primarily associated with which health issue?
• Which toxic substance is associated with lesions in the respiratory system and is rapid in skin absorption?
• Which radiation type is best shielded by lead?
• Which of the following is a factor in noise Q calculations for spherical or free-form shapes?
• What is the formula to calculate outdoor air supply in terms of concentration?
• What does Boyle's Law express mathematically?
• Which of the following compounds is known as an Organochlorine?
• Silica gel tubes are best suited for which type of substances?
• Which toxin is linked to causing frosty injuries?
• What is the purpose of a Monte Carlo simulation in industrial hygiene?
• What device is commonly used to measure lung volume in professional settings?
• Which of the following diseases does vinyl chloride NOT cause?
• Which toxic metal is associated with delayed symptoms including tubular proteinuria?
• Which range of wavelengths is associated with corneal damage from optical radiation?
• Which of the following is a type of toxin produced by fungi?
• What is another name for brown asbestos?
• What is the typical irradiance range associated with UVB light?
• What type of cancer is linked to benzidine exposure?
• Who is impacted by the community right to know aspect of SARA?
• What type of exposure is linked to reproductive hazards and potentially acute effects?
• Which combination of devices can be used to measure air quality effectively?
• Charcoal tubes are best used for which type of molecules?
• What is one of the reproductive effects that endocrine disrupters may cause?
• In terms of lighting, what is 'foot-candle' a measure of?
• Which fungi is known for thriving on water-damaged cellulose material and producing a potent mycotoxin?
• What type of irritation is primarily associated with exposure to phosgene?
• What does Sound Power Level measure?
• Which condition is caused by the bacterium that can be spread by ticks or deer flies?
• What is the PF for a PAPR half mask respirator?
• What type of respiratory issue is linked to sulfur dioxide exposure?
• What does a bitter almond smell indicate in a person's breath?
• How is the breakthrough rate calculated?
• What is the half-life of carboxyhemoglobin in carbon monoxide poisoning?
• Which air purifying respirator has a PF of 10?
• What is the classification of white asbestos?
• What is the formula for calculating joint probability?
• Which condition is often associated with phosphorous compounds?
• What symptoms might arise from the thermal decomposition of fluoridated polymers?
• What is the purpose of the SARA legislation?
• How is the distance to the far field boundary calculated using antenna area?
• What is a major health condition associated with cobalt exposure?
• How many ounces are there in one liter?
• How many air changes per hour are recommended for an inside flammable storage room?
• What does the half value layer (HVL) represent in radiation shielding?
• What is the typical frequency of household microwave ovens?
• Which condition is linked to beryllium exposure?
• Which of the following best describes BED in the context of chemical reactions?
• What is produced by Gram-negative bacteria that is notable for its toxic properties?
• Which type of noise do solid barriers with absorption tend to reduce?
• What aspect of microwave frequency is crucial for human health recommendations?
• What is the implication of a p-value less than 0.05 in hypothesis testing?
• What is the significance of the amount of light incident upon a surface?
• What is the boundary for non-ionizing radiation limits?
• The microwave spectrum typically ranges from?
• What is the preferred analytical method for detecting most metals?
• Which frequency range is most associated with difficult speech levels?
• In probability, how do you calculate the likelihood of independent events occurring together?
• What formula relates minimum volume sampling to detection limits and permissible exposure limits?
• What is the best method to control radiant heat?
• Which type of asbestos is considered the most toxic?
• What is the cut point for thoracic dust particles?
• Lead exposure is primarily associated with which of the following systems?
• How large are respirable dust particles regarding their size cut point?
• Bagassosis is a respiratory condition linked to exposure to which material?
• For which range are fume particles measured?
• Mercury exposure is known to primarily affect which organ system?
• Which form of heat does NOT heat the surrounding air?
• What condition is caused by exposure to silver?
• Which type of cancer is associated with exposure to 1,3-butadiene?
• How is required sample time calculated in an industrial hygiene context?
• What is the permissible exposure factor (PF) for a full face piece air purifying respirator?
• Which of the following is a known irritation caused by sulfur dioxide exposure?
• What is the frequency range of the Radio frequency spectrum?
• Which of the following conditions is typically caused by exposure to contaminated water?
• What is the formula for calculating the probability when events are not mutually exclusive?
• What is the size range of dust particles?
• Which formula correctly represents the odds ratio?
• What is the definition of radiant power?
• What role does SAR (Specific Absorption Rate) play in radiation exposure?
• Ultrasonic imaging is measured in which unit?
• How is illumination defined in terms of measurement?
• What is a significant health risk associated with pentaborane?
• What does an average sound absorption coefficient of 0.6 indicate?
• What type of cancer is radium exposure most associated with?
• Which substance is noted for causing dermatitis and upper respiratory tract irritation?
• What condition is indicated by siderosis?
• What is a distinctive symptom associated with selenium and tellurium exposure?
• What is the maximum power output for a Class 2a laser?
• How does continuous wave (CW) lasers primarily cause eye damage?
• What is a potential effect of exposure to Organophosphates?
• What is a common effect of carbon monoxide exposure?
• What is the size range for mist particles?
• Which of the following is an example of Organophosphates?
• Which chemical compounds produce symptoms similar to metal fume fever when heated?
• Which of the following best describes Tennis elbow?
• At what decibel level does OSHA's standard threshold shift (STS) start for frequencies of 2k, 3k, and 4k?
• What severe health issues can nickel compounds cause?
• Which of the following hazards is associated with glycol ethers?
• What is the specific gravity defined as?
• What is the primary method for ozone sampling?
• What is the range of the visible spectrum?
• How is the probability of two mutually exclusive events calculated?
• Which formula represents the relationship between molarity and volume?
• Severe hypothermia is indicated by what body temperature?
• How does nitrogen dioxide primarily affect the respiratory system?
• Endocrine disrupters are most notably associated with which of the following?
• What is the resolution capability of phase contrast microscopy (PCM)?
• What is the primary method of heat transfer described in the context of industrial hygiene?
• What is a main toxicological effect of copper?
• How is the incident rate calculated?
• Which class of laser is considered to have no hazard under normal use?
• What formula is used to calculate the Heat Stress Index (HSI)?
• Which method is used for ammonia sampling?
• How does exposure to vanadium typically manifest in individuals?
• What is the formula used to calculate dilution air for lower explosive limit (LEL)?
• In noise assessment, what does a 0-1 range indicate?
• What is the density of water in pounds per gallon?
• What effect does silver have on the eyes according to health risk assessments?
• What major organ systems are affected by arsine exposure?
• Which of the following materials is effective at shielding beta radiation?
• The IR (Infrared) spectrum typically ranges from?
• What is the maximum body temperature to prevent impairment from heat stress?
• What does the term teratogenic refer to?
• At what temperature can tissue freezing begin to occur regardless of wind?
• What is the primary wavelength range for UV radiation known to cause optical damage?
• For a PAPR full face piece respirator, what is the assigned permissible exposure factor (PF)?
• Which of the following is true about the TLV of pentaborane?
• What type of irritation is commonly associated with Methylene chloride?
• Which of the following instruments is used for measuring air velocity?
• What is the fresnel region?
• What frequency range is commonly designated for medical diathermy and industrial heating applications?
• Which of the following is considered a primary standard for measuring lung function?
• In Monte Carlo simulations, what does variability in exposure sources help to determine?
• What type of light do excimer lasers produce?
• What effect does doubling the distance from a sound source have on sound power?
• How is the volume of a cylinder calculated?
• What is the safe exposure time for Class 2a lasers?
• What is the frequency range considered typical for human speech?
• What chronic symptoms are associated with fluoride exposure?
• Which disease is associated with bauxite pneumoconiosis?
• What principle describes the behavior of gases in confined spaces at constant temperature?
• Which disease is associated with exposure to vinyl chloride?
• Which control device is most efficient at removing PM 2.5 from the air?
• What is a procarcinogen?
• What is the Ames test used for in industrial hygiene?
• What is a potential health risk associated with carbon monoxide exposure?
• What general rule applies to the effects of reflective surfaces on sound intensity?
• Which chemical is associated with burns and edema of multiple organs?
• What are some potential health effects associated with exposure to Ethylene oxide?
• Which disease is associated with long-term exposure to uranium?
• Which of the following wavelengths is most closely associated with retinal damage?
• What defines a Class 2 laser regarding its power?
• What is the relationship between terminal settling velocity and particle diameter as per the provided equation?
• What is the formula for terminal settling velocity in relation to particle diameter?
• How is the permissible exposure limit (PEL) for silica calculated?
• Which of the following is a characteristic of convection heat?
• Which of the following chemicals is known for having systemic effects when absorbed through the skin?
• How many cups are in one gallon?
• What is a common consequence of inhaling phenol vapors?
• How do you determine the combined effect of multiple noise sources?
• Which analytical method is most commonly used for aromatic and halogenated hydrocarbons?
• Which statement best describes the limitations of PCM in asbestos analysis?
• What is the frequency range most damaging to skin and associated with carcinogenesis?
• Which type of PAPR offers the highest PF?
• What environmental factors affect globe temperature readings?
• If the Sound Absorption Coefficient is 0.6, what percentage of sound is absorbed?
• What is the upper threshold for oxygen concentration in a confined space before it becomes hazardous?
• Which of the following statements accurately describes phenol's hazard profile?
• What is the approximate decibel reduction achieved by doubling absorption in reverberant spaces?
• What type of reaction is characterized by hives, commonly caused by allergens?
• What kind of effects does hydrogen cyanide have when absorbed through the skin?
• Which lasers produce light in the visible region?
• According to Charles' Law, how is the relationship of volume and temperature expressed?
• What are the effects of acute exposure to nitrogen dioxide?
• What is the formula to calculate accuracy in measurements?
• How is exposure calculated in relation to ppm, site pressure, and temperature?
• What is the required condition to maintain body core temperature during heat stress?
• What is the wavelength range of the UV spectrum?
• Which metal's exposure is associated with tremors and hearing loss?
• Which type of heat transfer is affected by air velocity?
• What is the approximate resolution of Transmission Electron Microscopy (TEM)?
• Which health condition results from long-term exposure to cobalt?
• Which condition can result from jerking motions of the elbow?
• What does the organ of Corti within the cochlea contain?
• What is the cut point for inhalable dust?
• What characterizes isokinetic sampling in the context of a gas air stream?
• What structure separates the outer ear from the middle ear?
• What is reflectance in the context of luminance and illumination?
• What does the acronym TLV stand for in industrial hygiene?
• What is 'phossy jaw' a condition stemming from?
• In the context of beta in hypothesis testing, what does it represent?
• Which structures are part of the middle ear?
• What percentages correspond to 1, 2, and 3 standard deviations in a normal distribution?
• How is the NRR calculated for dual hearing protection?
• Which chemical compound is recognized for causing respiratory irritation and pulmonary edema?
• Epicondylitis is commonly referred to as what?
• What is an effect of exposure to vinyl chloride?
• What is a potential hazard associated with submerged arc welding?
• What acute effects are linked to fluoride exposure?
• Which class of laser has a power greater than 0.5 W and requires controls?
• How is the Maximum Use Concentration (MUC) calculated?
• Which noise level would receive the lowest addition according to the multiple noise sources method?
• Which of the following symptoms is associated with carbon monoxide exposure?
• What analytical method is typically utilized for most organic compounds?
• What unit is used to measure luminance emitted or reflected from an area?
• What do the initials BED stand for in a chemical context?
• Which of the following describes filtration methods?
• Organochlorines are primarily known for their impact on which biological system?
• Which onsite analytical method is used specifically for metal detection?
• What health condition is linked to carbon disulfide exposure?
• What component does not factor into the Heat Stress Index calculation?
• What geometric concept is the circumference of a duct related to?
• Beta-naphthylamine is known for being a potent what?
• Which frequency range is considered most hazardous to hearing?
• Which substances can cause pulmonary edema?
• What symptom is commonly associated with DeQuervains syndrome?
• What is the primary application of an amperometric cell?
• What does CERCLA stand for?
• What is the reference sound pressure level in N/m^2?
• What health effect is particularly associated with exposure to microwave radiation?
• What is the specific absorption rate (SAR)?
• What is the maximum safe exposure time for viewing a Class 3a laser?
• What major feature distinguishes transmission electron microscopy (TEM) from PCM?
• What power level indicates a Class 3a laser?
• What does the p-value indicate in hypothesis testing?
• What are the typical foot-candles for office work and fine assembly?
• What happens in a Type 1 error during hypothesis testing?
• How many pints are in a gallon?
• What is a common health effect associated with exposure to TNT?
• Which exposure is NOT typically associated with carbon tetrachloride?
• What characterizes a hearing loss requiring compensation?
• What is the primary health concern associated with arsenic exposure?
• What is the primary function of a half mask air purifying respirator?
• What does a Type 2 error represent in statistical hypothesis testing?
• What is a characteristic of Class 2 lasers related to exposure time?
• Which unit is equivalent to Joules per second?
• What PF is assigned to a PAPR loose fitting respirator?
• What is the formula to calculate the circumference of a round duct?
• What is the unit of luminous intensity in a given direction?
• What defines the effectiveness of a respiratory protection system?
• What is a health effect associated with exposure to coal tar pitch volatiles?
• Which symptom is NOT commonly associated with lead exposure?
• What is the appropriate method to calculate new friction loss?
• What is the safe exposure time for a Class 3a laser?
• What condition involves median nerve compression due to repetitive wrist motion?
• What sampling method is used for methanol vapors?
• What are the primary effects of hydrogen cyanide exposure?
• What is a standard weighting level for sound measurement?
• How is the impact of reflective surfaces on sound often expressed?
• What analytical method is identified for isocyanates?
• Which genus of fungi is most frequently found in outdoor air?
• What is the primary concern when the concentration of oxygen in a confined space falls below 19.5%?
• What sampling method is used for mercury analysis directly?
• What is the relationship of flow rate and sample volume in determining sampling time?
• What is one of the health effects associated with infrared (IR) radiation exposure?
• In which region do CO2 lasers produce light?
• Which health hazard is associated with prolonged exposure to coal tar pitch volatiles?
• Which of the following is a primary function of filtration methods in industrial hygiene?
• What effect does microwave and RF radiation have on human health?
• Which chemical is known for causing leukemia due to its effects on the hematopoietic system?
• Which laser types are commonly associated with ocular focus region hazards?
• Which of the following bacteria is associated with "rabbit fever"?
• At what heart rate level is heat stress considered a concern?
• What is the primary effect of teratogenic agents?
• Which health effect is a result of carbon tetrachloride exposure?
• At what frequency range does the human body absorb RF energy most effectively?
• In which region does RF/microwave radiation have the lowest TLV power density?
• Which of these chemicals is associated with an increased risk of A2 lung cancer?
• What does power density or irradiance measure?
• What is the body shell temperature associated with cold discomfort?
• What health risk is primarily associated with chromium exposure?
• What is the PF assigned to a supplied air half mask continuous respirator?
• DeQuervains syndrome is primarily associated with which type of injury?
• What is the ocular focus region for hazardous laser wavelengths?
• What temperature indicates the start of severe cold-related health risks?
• Which class of laser has a maximum power of 0.5 W?
• At what body temperature is heat stroke likely to occur?
• What type of eye damage can result from pulsed lasers?
• Which virus is associated with bird handlers disease?
• Which element is noted for having severe vomiting as a prominent symptom upon exposure?
• Which health effect is NOT typically associated with nickel compounds?
• What is the ideal gas constant R value?
• What is the main health risk associated with exposure to legionella?
• What does 'P/area' represent in the context of irradiance?
• What does the Speech Interference Level (SIL) represent?
• What unit measures illumination in terms of foot candles?
• What health effect can occur due to arsine exposure?
• What is the recommended control device for dust in lead smelting operations?
• What threshold level indicates the need to start recording temperature every four hours with wind speed considered?
• Which of the following is considered a cardio toxin?
• What TLV (Threshold Limit Value) is set to protect against cataract formation from infrared exposure?
• What is the function of the cochlea in the auditory system?
• Which of the following is NOT a fungal infection commonly referenced in occupational health?
• Which analytical method is used for inorganic acids?
• What is the maximum allowable percentage for the breakthrough rate of the front section?
• Which of the following is NOT a disease associated with bacterial infection?
• Byssinosis is primarily associated with exposure to which substance?
• What effect can exposure to carbon disulfide have on the body?
• What is the main risk associated with cadmium exposure?
• How is radiant energy typically measured?
• What is the industrial hygienist's primary tool for assessing air pollutants?