Toxicology Overview Quiz

<p>90 dBA (B)</p> Signup and view all the answers

<p>Arrange in ascending order (A)</p> Signup and view all the answers

<p>Class 3 (C)</p> Signup and view all the answers

<p>High generation of contaminants (B)</p> Signup and view all the answers

<p>Noise (A)</p> Signup and view all the answers

<p>By summing exposure over time (C)</p> Signup and view all the answers

<p>84 dBA (B)</p> Signup and view all the answers

<p>30 minutes (B)</p> Signup and view all the answers

<p>Alpha rays (D)</p> Signup and view all the answers

<p>5.2 hours (B)</p> Signup and view all the answers

<p>85 dBA (D)</p> Signup and view all the answers

<p>More penetrative than alpha rays (B)</p> Signup and view all the answers

<p>dB1 = dB0 + 20 Log10 (d0/d1) (D)</p> Signup and view all the answers

<p>Gamma rays (A)</p> Signup and view all the answers

<p>Geiger counter (A)</p> Signup and view all the answers

<p>Standard Threshold Shift (D)</p> Signup and view all the answers

<p>10 dBA (A)</p> Signup and view all the answers

<p>Inhalation (A)</p> Signup and view all the answers

<p>Carbon Tetrachloride (C)</p> Signup and view all the answers

<p>Dosage that can produce death in 50% of test animals (A)</p> Signup and view all the answers

<p>Injection (D)</p> Signup and view all the answers

<p>Mutagens (C)</p> Signup and view all the answers

<p>Cattles and unpasteurized milk (A)</p> Signup and view all the answers

<p>Repeated long-term exposure (A)</p> Signup and view all the answers

<p>Nervous System (C)</p> Signup and view all the answers

<p>Cattle, sheep, and goats (B)</p> Signup and view all the answers

<p>Styrene (A)</p> Signup and view all the answers

Substances causing harm to normal human physiological function.

Toxicity occurring over a short period.

Toxicity occurring over a long period due to repeated exposure.

Amount of chemical per body weight.

Dosage killing 50% of test animals. Unit: mg/kg.

Concentration in air killing 50% of test animals. Unit: PPM or mg/m3.

Chemicals damaging the liver.

Chemicals damaging the nervous system.

Chemicals causing permanent DNA changes.

Chemicals damaging a developing fetus.

Inhalation of metal fumes, for example, magnesium and zinc during welding.

Inhalation of cotton dust leading to lung issues.

Age-related hearing loss.

A system classifying biological agents based on their risk levels.

Enclosed workstations designed to protect workers and the environment from hazardous materials.

A type of ventilation where fresh air is mixed with contaminated air to reduce the concentration of contaminants below the Occupational Exposure Limit (OEL).

A type of ventilation that removes contaminated air directly from the source of generation.

A measure of the number of times the air in a space is completely replaced with fresh air per hour.

Any unwanted sound.

A logarithmic scale used to measure the intensity of sound, with higher decibels representing louder sounds.

The time a worker is allowed to be exposed to a specific noise level without exceeding OSHA limits. This is based on the inverse square law, where noise intensity decreases with increasing distance from the source.

A formula used to calculate the decrease in sound pressure level as the distance from the noise source increases. It's based on the inverse square law.

The outer ear's primary function is to gather sound waves and channel them towards the middle ear. It acts as a funnel for sound.

The middle ear amplifies sound vibrations using tiny bones called ossicles. This allows for efficient transmission to the inner ear.

The inner ear is responsible for converting sound vibrations into electrical signals, which are sent to the brain for interpretation. This is where we actually hear sounds.

A program mandated by OSHA to protect workers from hearing damage due to prolonged exposure to excessive noise levels.

A change in hearing threshold measured by comparing an audiogram taken after noise exposure to a baseline audiogram. It indicates hearing loss.

Energy or particles traveling through space or a medium. It can be classified as ionizing or non-ionizing, depending on its ability to cause ionization in matter.

Radiation that has enough energy to remove electrons from atoms, creating ions. Ionizing radiation can damage living tissue.

Radiation that does not have enough energy to create ions in matter. It's generally less harmful than ionizing radiation but can still have biological effects.