CHAPTER 3 - INDUSTRIAL HYGIENE

Question 1

It is a science devoted to the identification, evaluation, and control of occupational
conditions that cause sickness and injury.

Answer 1

Industrial Hygiene

Question 2

These are the major tools for protecting people and the environment.

Answer 2

Laws and Regulations

Question 3

What government agency has been authorized by Congress to carry out laws?

Answer 3

Environmental Protection Agency, Occupational Safety and Health Administration, Department of Homeland Security

Question 4

This phase determines the extent and degree of employee exposure to toxicants and physical hazards in the workplace environment.

Answer 4

Evaluation

Question 5

During the evaluation phase, the various types of existing measures and their effectiveness are studied. During the evaluation study, the likelihood of large and small leaks must be considered.

Answer 5

Both statements are true.

Question 6

The number of hours where the integral of the concentration of the chemical in the air is always divided.

Answer 6

8hrs

Question 7

All monitoring systems have drawbacks because
● The workers move in and out of the exposed workplace
● The concentration of toxicants may vary at different locations in the work area.

Answer 7

Both statements are true.

Question 8

This theory teaches that dust particles that present the greatest hazard to the lungs are normally in the respirable particle size range of 0.2 - 0.5μm.

Answer 8

Toxicology Theory

Question 9

What is the concentration unit of dust evaluation?

Answer 9

mppcf (millions of particles per cubic foot), mg/m3

Question 10

What is the primary role of Congress in the lawmaking process?

Answer 10

Proposing and passing laws

Question 11

Which government agency is responsible for creating and enforcing regulations related
to workplace safety?

Answer 11

OSHA

Question 12

What is the official compilation of all federal laws?

Answer 12

United States Code

Question 13

Which agency conducts research on workplace hazards and recommends safety
measures?

Answer 13

NIOSH

Question 14

What is the primary purpose of the OSHAct?

Answer 14

To protect worker safety and health

Question 15

Which of the following is NOT a typical step in the process of creating a regulation?

Answer 15

Appointing a new Supreme Court Justice

Question 16

What is the primary instrument used to measure noise levels?

Answer 16

Decibel meter

Question 17

When estimating vapor concentrations in enclosed spaces, which factor is most critical to consider?

Answer 17

Ventilation rate

Question 18

What is the primary responsibility of employers under the OSHAct?

Answer 18

To provide safe and healthy working conditions

Question 19

How can workers best protect themselves from workplace hazards?

Answer 19

Following safety procedures and using protective equipment

Question 20

What is the primary goal of OSHA’s PSM standard?

Answer 20

To reduce the number and severity of accidents involving hazardous chemicals.

Question 21

Which of the following is NOT a core element of OSHA’s PSM standard?

Answer 21

Risk assessment

Question 22

What is the primary purpose of an emergency response plan?

Answer 22

To respond to accidents and minimize their impact.

Question 23

What factor primarily influences the evaporation rate of a liquid?

Answer 23

Saturation vapor pressure

Question 24

What is the primary goal of environmental controls?

Answer 24

To reduce exposure to hazardous chemicals by controlling the workplace environment.

Question 25

When should respirators be used as a primary control measure?

Answer 25

As a temporary measure until engineering controls can be implemented.

Question 26

What is the key principle of the management of change (MOC) process?

Answer 26

To minimize the impact of changes on safety and environmental performance.

Question 27

What is the purpose of a process hazard analysis (PHA)?

Answer 27

To identify potential hazards and develop mitigation strategies.

Question 28

Which of the following is a key component of mechanical integrity?

Answer 28

Regular equipment inspections and maintenance.

Question 29

What is the primary goal of employee participation in PSM?

Answer 29

To enhance safety performance and reduce accidents.

Question 30

What is the primary goal of the Chemical Facility Anti-Terrorism Standards (CFATS)?

Answer 30

To protect chemical facilities from potential threats.

Question 31

What is a Security Vulnerability Assessment (SVA)?

Answer 31

A procedure to identify potential security threats to a chemical facility.

Question 32

What is a crucial step in identifying potential hazards in a chemical process?

Answer 32

Analyzing process design documents and operating instructions.

Question 33

Why is collaboration between different professionals important in hazard identification?

Answer 33

To identify potential hazards from various perspectives.

Question 34

What are the two primary sources of volatile emissions during vessel filling?

Answer 34

Evaporation and displacement

Question 35

What type of ventilation system is preferred to prevent contaminated air from leaking into the workplace?

Answer 35

Balanced pressure system

Question 36

What factor represents the adjustment for less than saturated conditions in the vapor
space?

Answer 36

φ

Question 37

What is the role of the Site Security Plan (SSP)?

Answer 37

To detail specific steps to protect the facility from security threats.

Question 38

What is the primary disadvantage of using ventilation for environmental control?

Answer 38

High operating cost due to energy consumption

Question 39

Who is primarily responsible for identifying and preventing health risks in workplaces?

Answer 39

Industrial hygienists