1|Page
CHMM® CERTIFIED HAZARDOUS
MATERIALS MANAGER PRACTICE TEST
QUESTION BANK
2026–2027 ACADEMIC YEAR 200+
MULTIPLE-CHOICE QUESTIONS WITH
DETAILED RATIONALES
itsjereguides
# PART I: PLANNING FOR MATERIALS WITH HAZARDS (11%)
## Topic A: Hazardous Material Identification
**Question 1**
A hazardous materials manager is reviewing a Safety Data Sheet (SDS) for an unknown
chemical. The SDS indicates that the material has a flash point of 85°F (29°C) and a boiling
point of 140°F (60°C). According to OSHA's Hazard Communication Standard (29 CFR
1910.1200), how should this material be classified?
A) Non-flammable liquid
B) Flammable liquid, Category 1
C) Flammable liquid, Category 2
,2|Page
D) Combustible liquid
---
**Correct Answer: C**
**Rationale:** Under OSHA's Hazard Communication Standard (29 CFR 1910.1200),
flammable liquids are classified based on flash point and boiling point. Category 2 flammable
liquids have a flash point of less than 73.4°F (23°C) and a boiling point greater than 95°F
(35°C). Category 1 flammable liquids have a flash point below 73.4°F (23°C) with a boiling
point below 95°F (35°C). Combustible liquids have a flash point between 140°F and 200°F. A
flash point of 85°F (29°C) with a boiling point of 140°F (60°C) falls into Category 2.
**Why the other options are incorrect:**
- **A) Non-flammable:** A flash point of 85°F indicates flammability; non-flammable liquids
have no flash point or a very high flash point.
- **B) Category 1:** Category 1 requires a flash point below 73.4°F (23°C). This material's
flash point is 85°F, so it does not meet Category 1 criteria.
- **D) Combustible liquid:** Combustible liquids have a flash point at or above 140°F (60°C)
and below 200°F (93°C). This material's flash point is 85°F, well below this threshold.
---
**Question 2**
A laboratory report for a waste mixture shows a pH of 2.5 and the presence of cyanide at a
concentration of 1,000 mg/kg. According to RCRA regulations, which characteristic(s) would
make this waste hazardous?
,3|Page
A) Ignitability only
B) Corrosivity and toxicity
C) Reactivity only
D) Toxicity only
---
**Correct Answer: B**
**Rationale:** Under RCRA (40 CFR Part 261), a waste is hazardous if it exhibits any of four
characteristics: ignitability (D001), corrosivity (D002), reactivity (D003), or toxicity (D004-
D043). A pH of 2.5 is less than or equal to 2.0 or greater than or equal to 12.5, which meets the
corrosivity characteristic (D002). Cyanide at 1,000 mg/kg exceeds the RCRA toxicity
characteristic for cyanide (D008), which has a regulatory level of 20 mg/L (TCLP) or 1,000
mg/kg total concentration in some contexts. Therefore, the waste exhibits both corrosivity and
toxicity.
**Why the other options are incorrect:**
- **A) Ignitability only:** The scenario provides no information about flash point or ignitability;
pH and cyanide indicate corrosivity and toxicity.
- **C) Reactivity only:** The scenario provides no information about reactivity characteristics
such as violent reactions or generation of toxic gases.
- **D) Toxicity only:** While cyanide indicates toxicity, the pH also indicates corrosivity, so
both characteristics are present.
---
**Question 3**
, 4|Page
A hazardous materials manager is evaluating four Safety Data Sheets (SDSs) to identify a
material that is both a health hazard and a physical hazard. Which of the following combinations
of GHS pictograms would indicate a material that poses BOTH health and physical hazards?
A) Flame over circle and health hazard
B) Exclamation mark and environment
C) Skull and crossbones only
D) Flame only
---
**Correct Answer: A**
**Rationale:** Under the Globally Harmonized System (GHS), pictograms indicate specific
hazard classes. The "flame over circle" pictogram indicates oxidizing substances (physical
hazard), while the "health hazard" pictogram indicates serious health effects such as
carcinogenicity, mutagenicity, or reproductive toxicity. A material with both pictograms would
pose both physical and health hazards.
**Why the other options are incorrect:**
- **B) Exclamation mark and environment:** The exclamation mark indicates less severe health
hazards, and the environment pictogram indicates hazards to the aquatic environment. This does
not necessarily indicate a physical hazard.
- **C) Skull and crossbones only:** This indicates acute toxicity (health hazard) but does not
indicate a physical hazard.
- **D) Flame only:** This indicates flammable, pyrophoric, or self-heating materials (physical
hazard) but does not indicate a health hazard.
---
CHMM® CERTIFIED HAZARDOUS
MATERIALS MANAGER PRACTICE TEST
QUESTION BANK
2026–2027 ACADEMIC YEAR 200+
MULTIPLE-CHOICE QUESTIONS WITH
DETAILED RATIONALES
itsjereguides
# PART I: PLANNING FOR MATERIALS WITH HAZARDS (11%)
## Topic A: Hazardous Material Identification
**Question 1**
A hazardous materials manager is reviewing a Safety Data Sheet (SDS) for an unknown
chemical. The SDS indicates that the material has a flash point of 85°F (29°C) and a boiling
point of 140°F (60°C). According to OSHA's Hazard Communication Standard (29 CFR
1910.1200), how should this material be classified?
A) Non-flammable liquid
B) Flammable liquid, Category 1
C) Flammable liquid, Category 2
,2|Page
D) Combustible liquid
---
**Correct Answer: C**
**Rationale:** Under OSHA's Hazard Communication Standard (29 CFR 1910.1200),
flammable liquids are classified based on flash point and boiling point. Category 2 flammable
liquids have a flash point of less than 73.4°F (23°C) and a boiling point greater than 95°F
(35°C). Category 1 flammable liquids have a flash point below 73.4°F (23°C) with a boiling
point below 95°F (35°C). Combustible liquids have a flash point between 140°F and 200°F. A
flash point of 85°F (29°C) with a boiling point of 140°F (60°C) falls into Category 2.
**Why the other options are incorrect:**
- **A) Non-flammable:** A flash point of 85°F indicates flammability; non-flammable liquids
have no flash point or a very high flash point.
- **B) Category 1:** Category 1 requires a flash point below 73.4°F (23°C). This material's
flash point is 85°F, so it does not meet Category 1 criteria.
- **D) Combustible liquid:** Combustible liquids have a flash point at or above 140°F (60°C)
and below 200°F (93°C). This material's flash point is 85°F, well below this threshold.
---
**Question 2**
A laboratory report for a waste mixture shows a pH of 2.5 and the presence of cyanide at a
concentration of 1,000 mg/kg. According to RCRA regulations, which characteristic(s) would
make this waste hazardous?
,3|Page
A) Ignitability only
B) Corrosivity and toxicity
C) Reactivity only
D) Toxicity only
---
**Correct Answer: B**
**Rationale:** Under RCRA (40 CFR Part 261), a waste is hazardous if it exhibits any of four
characteristics: ignitability (D001), corrosivity (D002), reactivity (D003), or toxicity (D004-
D043). A pH of 2.5 is less than or equal to 2.0 or greater than or equal to 12.5, which meets the
corrosivity characteristic (D002). Cyanide at 1,000 mg/kg exceeds the RCRA toxicity
characteristic for cyanide (D008), which has a regulatory level of 20 mg/L (TCLP) or 1,000
mg/kg total concentration in some contexts. Therefore, the waste exhibits both corrosivity and
toxicity.
**Why the other options are incorrect:**
- **A) Ignitability only:** The scenario provides no information about flash point or ignitability;
pH and cyanide indicate corrosivity and toxicity.
- **C) Reactivity only:** The scenario provides no information about reactivity characteristics
such as violent reactions or generation of toxic gases.
- **D) Toxicity only:** While cyanide indicates toxicity, the pH also indicates corrosivity, so
both characteristics are present.
---
**Question 3**
, 4|Page
A hazardous materials manager is evaluating four Safety Data Sheets (SDSs) to identify a
material that is both a health hazard and a physical hazard. Which of the following combinations
of GHS pictograms would indicate a material that poses BOTH health and physical hazards?
A) Flame over circle and health hazard
B) Exclamation mark and environment
C) Skull and crossbones only
D) Flame only
---
**Correct Answer: A**
**Rationale:** Under the Globally Harmonized System (GHS), pictograms indicate specific
hazard classes. The "flame over circle" pictogram indicates oxidizing substances (physical
hazard), while the "health hazard" pictogram indicates serious health effects such as
carcinogenicity, mutagenicity, or reproductive toxicity. A material with both pictograms would
pose both physical and health hazards.
**Why the other options are incorrect:**
- **B) Exclamation mark and environment:** The exclamation mark indicates less severe health
hazards, and the environment pictogram indicates hazards to the aquatic environment. This does
not necessarily indicate a physical hazard.
- **C) Skull and crossbones only:** This indicates acute toxicity (health hazard) but does not
indicate a physical hazard.
- **D) Flame only:** This indicates flammable, pyrophoric, or self-heating materials (physical
hazard) but does not indicate a health hazard.
---
