CHST ACTUAL EXAM TEST PAPER FULL QUESTIONS CORRECT RESPONSES
CHST EXAM PREP FULL Solution 2026/2027
Questions and Answers Verified Solutions Latest
Update
Question:
Barrier Analysis is utilized within which of the following accident investigation techniques? 1)
Sequential Time Plotting 2) Critical Incident Technique 3) Root Cause Analysis and Management
Oversight and Risk Tree 4) Event Analysis
Answer:
3) Root Cause Analysis and Management Oversight and Risk Tree
Question:
Heinrich's domino theory of accidents included: 1) Worker, perception, physical, social, injury. 2)
The five B's. 3) Social, fault, unsafe act, accident, injury. 4) Men, machine, money, capital, accident.
Answer:
3) Social, fault, unsafe act, accident, injury.
Question:
Heinrich's ratio of no injury accidents to minor injuries to major injuries is which of the following?
1) 100-20-1 2) 200-30-10 3) 300-29-1 4) 600-58-1
Answer:
3) 300-29-1
Question:
In worker's compensation cases involving hearing loss, the term low fence is often heard. Low fence
also varies by state. What is the meaning of this term? 1)Minimum noise level the worker must be
able to hear 2)Hearing threshold level at which impairment begins 3)Minimum acceptable dollar
value related to the loss 4)Maximum acceptable dollar value related to the loss
,Answer:
2)Hearing threshold level at which impairment begins
Question:
In workers compensation cases for hearing loss the term high fence is often used. High fence also
varies by state. What is the meaning of the term high fence? 1) Point the worker must reach 2) Point
of 100% hearing impairment 3) Point of 0% hearing impairment 4) Point of 50% hearing
impairment
Answer:
2) Point of 100% hearing impairment
Question:
When an injured person's care for his own safety was less than that reasonable for a prudent person
under existing conditions, he is considered negligent and the defendant will not be held liable. This
principle is known as: 1) Privity. 2) Contributory negligence. 3) Joint tort. 4) Assumption of risk.
Answer:
2) Contributory negligence.
Question:
When an injury is caused by two or more persons, each of which failed in a legal duty, they are in:
1) Fault. 2) Contributory fault. 3) Contributory negligence. 4) Joint tort liability.
Answer:
4) Joint tort liability.
Question:
At one time it was considered that a plaintiff could not recover damages unless injury was due to
physical contact. This principle has been modified or repudiated over the years to permit a plaintiff
to collect damages for neurological or emotional disturbances that occurred without physical injury.
This principle is known as: 1) Fright without physical contact. 2) Privity without contact. 3) Strict
liability. 4) Tort.
,Answer:
1) Fright without physical contact.
Question:
Non-regulatory consequences of failure to adequately clean up chemical releases include all
EXCEPT: 1) Decreased property values 2) Difficulties in selling the affected property 3) Reduced
collateral value of the property in borrowing situations 4) Reduced charges to waste disposal budget
Answer:
4) Reduced charges to waste disposal budget
Question:
Any of the following are major cause(s) of electrical shock EXCEPT: 1) Ungrounded frames or
inadequate grounding of frames on noncurrent-carrying parts of electrical machinery and tools 2)
Inadequate protection of exposed current-carrying parts of electrical installations 3) Inadequate
insulation of electrical conductors 4) GFCI
Answer:
4) GFCI
Question:
What does a "Bird Cage" in a wire rope usually signify? 1)Repeated bending over sheaves 2)
Jumping a sheave 3)Fatigue 4)Sudden release of tension and rebound
Answer:
4)Sudden release of tension and rebound
Question:
The products produced when water is electrolyzed are which of the following? 1) H 2O2 2) H2 and
O2 3) H+ and OH- 4) H 2 O 2 and H+
Answer:
2) H2 and O2
, Question:
Given a two-leg sling (each leg makes a 60º angle with respect to the load) supporting 20,000 lb,
what is the tension on the left sling leg? 1)8,754 lb 2)9,967 lb 3)11,547 lb 4)12,333 lb
Answer:
3)11,547 lb sine of angle = opposite leg length / hypotenuse leg length 10,000 lb / sin 60 0 = 10,000
lb /0.8660 = 11,547 lb
Question:
Given that the volume of a gas at 45°C is 79.5 ml, what would the volume be at 0°C? Use Charles'
Law to determine new volume. 1) 6.83 ml 2) 68.3 ml 3) 78.3 ml 4) 88.5 ml
Answer:
2) 68.3 ml V 2 = 79.5 ml * (273/318) V 2 = 68.3 ml
Question:
How much acetone would have to be evaporated into a room 15 ft * 12 ft * 10 ft to give a final
concentration of 10 ppm at STP? (S.G. = 0.79, M.W. = 58) 1) 1.53 ml 2) 1.01 ml 3) 1.95 ml 4) 1.33
ml
Answer:
1) 1.53 ml 15 ft * 12 ft * 10 ft = 1800 ft3 1800 ft / 35.3 ft /M = 51 M 3 3 3 3 mg/M = (ppm *
MW)/24.45 = (10 * 58)/24.45 = 23.7mg/M 3 3 23.7 mg/M * 51 M = 1208.7 mg or 1.21 g 3 3 1.21
g/0.79 g/ml = 1.53 ml
Question:
Which of the following is not a chemical asphyxiant? 1) Aniline 2) Sodium nitrite 3) Hydrogen
cyanide 4) Argon
Answer:
4) Argon
CHST EXAM PREP FULL Solution 2026/2027
Questions and Answers Verified Solutions Latest
Update
Question:
Barrier Analysis is utilized within which of the following accident investigation techniques? 1)
Sequential Time Plotting 2) Critical Incident Technique 3) Root Cause Analysis and Management
Oversight and Risk Tree 4) Event Analysis
Answer:
3) Root Cause Analysis and Management Oversight and Risk Tree
Question:
Heinrich's domino theory of accidents included: 1) Worker, perception, physical, social, injury. 2)
The five B's. 3) Social, fault, unsafe act, accident, injury. 4) Men, machine, money, capital, accident.
Answer:
3) Social, fault, unsafe act, accident, injury.
Question:
Heinrich's ratio of no injury accidents to minor injuries to major injuries is which of the following?
1) 100-20-1 2) 200-30-10 3) 300-29-1 4) 600-58-1
Answer:
3) 300-29-1
Question:
In worker's compensation cases involving hearing loss, the term low fence is often heard. Low fence
also varies by state. What is the meaning of this term? 1)Minimum noise level the worker must be
able to hear 2)Hearing threshold level at which impairment begins 3)Minimum acceptable dollar
value related to the loss 4)Maximum acceptable dollar value related to the loss
,Answer:
2)Hearing threshold level at which impairment begins
Question:
In workers compensation cases for hearing loss the term high fence is often used. High fence also
varies by state. What is the meaning of the term high fence? 1) Point the worker must reach 2) Point
of 100% hearing impairment 3) Point of 0% hearing impairment 4) Point of 50% hearing
impairment
Answer:
2) Point of 100% hearing impairment
Question:
When an injured person's care for his own safety was less than that reasonable for a prudent person
under existing conditions, he is considered negligent and the defendant will not be held liable. This
principle is known as: 1) Privity. 2) Contributory negligence. 3) Joint tort. 4) Assumption of risk.
Answer:
2) Contributory negligence.
Question:
When an injury is caused by two or more persons, each of which failed in a legal duty, they are in:
1) Fault. 2) Contributory fault. 3) Contributory negligence. 4) Joint tort liability.
Answer:
4) Joint tort liability.
Question:
At one time it was considered that a plaintiff could not recover damages unless injury was due to
physical contact. This principle has been modified or repudiated over the years to permit a plaintiff
to collect damages for neurological or emotional disturbances that occurred without physical injury.
This principle is known as: 1) Fright without physical contact. 2) Privity without contact. 3) Strict
liability. 4) Tort.
,Answer:
1) Fright without physical contact.
Question:
Non-regulatory consequences of failure to adequately clean up chemical releases include all
EXCEPT: 1) Decreased property values 2) Difficulties in selling the affected property 3) Reduced
collateral value of the property in borrowing situations 4) Reduced charges to waste disposal budget
Answer:
4) Reduced charges to waste disposal budget
Question:
Any of the following are major cause(s) of electrical shock EXCEPT: 1) Ungrounded frames or
inadequate grounding of frames on noncurrent-carrying parts of electrical machinery and tools 2)
Inadequate protection of exposed current-carrying parts of electrical installations 3) Inadequate
insulation of electrical conductors 4) GFCI
Answer:
4) GFCI
Question:
What does a "Bird Cage" in a wire rope usually signify? 1)Repeated bending over sheaves 2)
Jumping a sheave 3)Fatigue 4)Sudden release of tension and rebound
Answer:
4)Sudden release of tension and rebound
Question:
The products produced when water is electrolyzed are which of the following? 1) H 2O2 2) H2 and
O2 3) H+ and OH- 4) H 2 O 2 and H+
Answer:
2) H2 and O2
, Question:
Given a two-leg sling (each leg makes a 60º angle with respect to the load) supporting 20,000 lb,
what is the tension on the left sling leg? 1)8,754 lb 2)9,967 lb 3)11,547 lb 4)12,333 lb
Answer:
3)11,547 lb sine of angle = opposite leg length / hypotenuse leg length 10,000 lb / sin 60 0 = 10,000
lb /0.8660 = 11,547 lb
Question:
Given that the volume of a gas at 45°C is 79.5 ml, what would the volume be at 0°C? Use Charles'
Law to determine new volume. 1) 6.83 ml 2) 68.3 ml 3) 78.3 ml 4) 88.5 ml
Answer:
2) 68.3 ml V 2 = 79.5 ml * (273/318) V 2 = 68.3 ml
Question:
How much acetone would have to be evaporated into a room 15 ft * 12 ft * 10 ft to give a final
concentration of 10 ppm at STP? (S.G. = 0.79, M.W. = 58) 1) 1.53 ml 2) 1.01 ml 3) 1.95 ml 4) 1.33
ml
Answer:
1) 1.53 ml 15 ft * 12 ft * 10 ft = 1800 ft3 1800 ft / 35.3 ft /M = 51 M 3 3 3 3 mg/M = (ppm *
MW)/24.45 = (10 * 58)/24.45 = 23.7mg/M 3 3 23.7 mg/M * 51 M = 1208.7 mg or 1.21 g 3 3 1.21
g/0.79 g/ml = 1.53 ml
Question:
Which of the following is not a chemical asphyxiant? 1) Aniline 2) Sodium nitrite 3) Hydrogen
cyanide 4) Argon
Answer:
4) Argon
