2026 Actual Exam| Complete Questions and Correct
Verified Answers/ Already Graded A+ (Brand New!!)
1. 1% concentration of Ammonia is equal to what in parts per
million?
A) 10 PPM
B) 100 PPM
C) 1,000 PPM
D) 10,000 PPM
Correct Answer: D
Rationale: One percent (1%) equals 10,000 parts per million
(PPM). This is a critical conversion because ammonia's hazardous
concentration thresholds are often expressed in PPM, while
safety data sheets (SDS) may use percentages. For reference,
0.1% = 1,000 PPM, 0.5% = 5,000 PPM .
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,2. 1/2 % of Ammonia is considered a deadly concentration.
A) True
B) False
Correct Answer: A
Rationale: One-half percent (0.5%) concentration equals 5,000
PPM, which is considered immediately fatal after short-term
exposure. This concentration causes rapid respiratory failure,
pulmonary edema, and cardiac arrest. The IDLH is 300 PPM,
while 5,000 PPM is an order of magnitude higher and deadly .
3. Ammonia is what on the pH scale?
A) 11.6
B) 3.7
C) 7.0
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, D) 5.2
Correct Answer: A
Rationale: Anhydrous ammonia has a pH of approximately 11.6,
making it strongly alkaline (basic). When dissolved in water, it
forms ammonium hydroxide (NH₄OH), which is highly caustic and
causes chemical burns to skin, eyes, and respiratory tract. This
high pH explains why ammonia causes "chemical burns" distinct
from thermal burns .
4. More than 100 pounds release of NH₃ in 24 hours is
reportable for release.
A) True
B) False
Correct Answer: A
Rationale: Under EPA's Comprehensive Environmental Response,
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, Compensation, and Liability Act (CERCLA) and EPCRA
(Emergency Planning and Community Right-to-Know Act), any
release of ammonia exceeding 100 pounds within a 24-hour
period must be reported to the National Response Center and
local emergency planning committees. This threshold applies to
facilities with anhydrous ammonia systems .
5. There are four primary types of injury with exposure to
liquid ammonia. Please list all four.
A) Dehydration burn, Chemical burn, Thermal burn, and
Respiratory burn
B) Electrical burn, Friction burn, Radiation burn, and Cold
burn
C) First-degree burn, Second-degree burn, Third-degree
burn, and Fourth-degree burn
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