CHST EXAM REVIEW SOLVED QUESTIONS COMPLETE ANSWERS GRADED A PLUS
CHST EXAM PREP Final Paper 2026/2027
Questions and Answers Verified Solutions Latest
Update
Question:
Drivers of any size vehicle which transports hazardous materials that require placarding must pass
the pre-trip skills and written test to obtain a: 1) Class I license. 2) Class II license. 3) CDL. 4) 1 or 2
above
Answer:
3) CDL.
Question:
A truck driver transporting hazardous material must know which of the following? 1) Rest stops 2)
Emergency Fist Aid 3) Nature of cargo 4) CPR
Answer:
3) Nature of cargo
Question:
Common job risk factors for the development of Cumulative Trauma Disorder (CTD) include all of
the following EXCEPT: 1) Excessive force 2) Abnormal postures 3) Mechanical compression 4)
Repetition
Answer:
4) Repetition
Question:
The definition of tensile strength on an object or of a material is: 1) The force which distorts it from
its original shape. 2) The breaking strength when exposed to tensile force. 3) 1/4 of the sheer
strength. 4) The sheer strength cubed.
,Answer:
2) The breaking strength when exposed to tensile force.
Question:
Which part of the body is the main one involved in maintaining the body's heat balance? 1) Lungs 2)
Heart 3) Skin 4) Hair
Answer:
3) Skin
Question:
Acetylene can be described as: 1) Colorless gas with slight garlic-like odor. 2) Pungent, irritating
greenish-yellow gas. 3) Faint yellow liquid. 4) White powder, chlorine-like odor.
Answer:
1) Colorless gas with slight garlic-like odor.
Question:
An instrument that detects a mixture of flammable vapors when air is passed over a heated electric
filament is called: 1) Wheatstone bridge. 2) Resistance bridge. 3) Combustible gas indicator. 4) Gas
detector.
Answer:
3) Combustible gas indicator.
Question:
If water weighs 8.34 lb/gal, what work is required to move 300 gallons of water from a 400 ft. deep
mine? 1) 1,000,200 ft-lbs 2) 1,000,400 ft-lbs 3) 1,000,600 ft-lbs 4) 1,000,800 ft-lbs
Answer:
4) 1,000,800 ft-lbs Use the formula: W = F * D Where: W = Work, F = Force, D = Distance W =
(8.34 * 300)(400) = 1,000,800 ft-lbs.
,Question:
At a distance of 5 miles, an office building has an angle of elevation of 2°. Find the height of the
building. 1) 922 ft 2) 561 ft 3) 434 ft 4) 4,340 ft
Answer:
1) 922 ft Use the formula for Tangent: Tan 2 = Opp / Adj Tan 2 = x / 26400 x = Tan 2 * 26400 x =
922
Question:
How long is a stay wire of a smokestack if at a distance of 80 feet from the base it makes an angle of
65° with the ground? 1) 163 2) 16.3 3) 18.9 4) 189
Answer:
4) 189 Use the Cosine Law formula: Cos 65° = Adj / Hyp Cos 65° = 80 / x x = 80 /.4226 x = 189.3 ft
Question:
Which group of specially trained employees, who have been delegated by their employer, are most
qualified to respond to an emergency in which a drum of hazardous substance has been ruptured? 1)
Paramedics 2) Nurses 3) HAZMAT team 4) First aid team
Answer:
3) HAZMAT team
Question:
If a SCBA is worn in an atmosphere that is immediately dangerous to life and health, the employee
must: 1) Wear a safety harness and lifeline. 2) Have a standby worker with a canister respirator. 3)
Have an escape pack. 4) Not go into the area.
Answer:
1) Wear a safety harness and lifeline.
Question:
, What precaution should be taken during an electrical storm? 1) Stand by a tall tree. 2) Stand by a
metal fence. 3) Seek shelter within a grounded metal building. 4) Seek shelter within a
non-grounded non-metal building.
Answer:
3) Seek shelter within a grounded metal building.
Question:
Accidental contact with 60 hertz current of 5 to 25 milliamperes can cause which of the following?
1) Death in most adults 2) Ventricular fibrillation 3) Harmless exposure 4) Paralysis
Answer:
4) Paralysis
Question:
The major cause of fire-related deaths is attributed to: 1) Inhalation of smoke. 2) Seared lungs. 3)
Carbon Monoxide. 4) Burn trauma.
Answer:
3) Carbon Monoxide.
Question:
In the theory of fire extinguishment, all of the following are believed appropriate, EXCEPT: 1)
Extinguishment by cooling 2) Extinguishment by oxygen dilution 3) Extinguishment by fuel
removal 4) Extinguishment by fire break
Answer:
4) Extinguishment by fire break
Question:
What is the most critical period in Crisis Management? 1) First 24 hours 2) First week 3) First
month 4) First year
Answer:
CHST EXAM PREP Final Paper 2026/2027
Questions and Answers Verified Solutions Latest
Update
Question:
Drivers of any size vehicle which transports hazardous materials that require placarding must pass
the pre-trip skills and written test to obtain a: 1) Class I license. 2) Class II license. 3) CDL. 4) 1 or 2
above
Answer:
3) CDL.
Question:
A truck driver transporting hazardous material must know which of the following? 1) Rest stops 2)
Emergency Fist Aid 3) Nature of cargo 4) CPR
Answer:
3) Nature of cargo
Question:
Common job risk factors for the development of Cumulative Trauma Disorder (CTD) include all of
the following EXCEPT: 1) Excessive force 2) Abnormal postures 3) Mechanical compression 4)
Repetition
Answer:
4) Repetition
Question:
The definition of tensile strength on an object or of a material is: 1) The force which distorts it from
its original shape. 2) The breaking strength when exposed to tensile force. 3) 1/4 of the sheer
strength. 4) The sheer strength cubed.
,Answer:
2) The breaking strength when exposed to tensile force.
Question:
Which part of the body is the main one involved in maintaining the body's heat balance? 1) Lungs 2)
Heart 3) Skin 4) Hair
Answer:
3) Skin
Question:
Acetylene can be described as: 1) Colorless gas with slight garlic-like odor. 2) Pungent, irritating
greenish-yellow gas. 3) Faint yellow liquid. 4) White powder, chlorine-like odor.
Answer:
1) Colorless gas with slight garlic-like odor.
Question:
An instrument that detects a mixture of flammable vapors when air is passed over a heated electric
filament is called: 1) Wheatstone bridge. 2) Resistance bridge. 3) Combustible gas indicator. 4) Gas
detector.
Answer:
3) Combustible gas indicator.
Question:
If water weighs 8.34 lb/gal, what work is required to move 300 gallons of water from a 400 ft. deep
mine? 1) 1,000,200 ft-lbs 2) 1,000,400 ft-lbs 3) 1,000,600 ft-lbs 4) 1,000,800 ft-lbs
Answer:
4) 1,000,800 ft-lbs Use the formula: W = F * D Where: W = Work, F = Force, D = Distance W =
(8.34 * 300)(400) = 1,000,800 ft-lbs.
,Question:
At a distance of 5 miles, an office building has an angle of elevation of 2°. Find the height of the
building. 1) 922 ft 2) 561 ft 3) 434 ft 4) 4,340 ft
Answer:
1) 922 ft Use the formula for Tangent: Tan 2 = Opp / Adj Tan 2 = x / 26400 x = Tan 2 * 26400 x =
922
Question:
How long is a stay wire of a smokestack if at a distance of 80 feet from the base it makes an angle of
65° with the ground? 1) 163 2) 16.3 3) 18.9 4) 189
Answer:
4) 189 Use the Cosine Law formula: Cos 65° = Adj / Hyp Cos 65° = 80 / x x = 80 /.4226 x = 189.3 ft
Question:
Which group of specially trained employees, who have been delegated by their employer, are most
qualified to respond to an emergency in which a drum of hazardous substance has been ruptured? 1)
Paramedics 2) Nurses 3) HAZMAT team 4) First aid team
Answer:
3) HAZMAT team
Question:
If a SCBA is worn in an atmosphere that is immediately dangerous to life and health, the employee
must: 1) Wear a safety harness and lifeline. 2) Have a standby worker with a canister respirator. 3)
Have an escape pack. 4) Not go into the area.
Answer:
1) Wear a safety harness and lifeline.
Question:
, What precaution should be taken during an electrical storm? 1) Stand by a tall tree. 2) Stand by a
metal fence. 3) Seek shelter within a grounded metal building. 4) Seek shelter within a
non-grounded non-metal building.
Answer:
3) Seek shelter within a grounded metal building.
Question:
Accidental contact with 60 hertz current of 5 to 25 milliamperes can cause which of the following?
1) Death in most adults 2) Ventricular fibrillation 3) Harmless exposure 4) Paralysis
Answer:
4) Paralysis
Question:
The major cause of fire-related deaths is attributed to: 1) Inhalation of smoke. 2) Seared lungs. 3)
Carbon Monoxide. 4) Burn trauma.
Answer:
3) Carbon Monoxide.
Question:
In the theory of fire extinguishment, all of the following are believed appropriate, EXCEPT: 1)
Extinguishment by cooling 2) Extinguishment by oxygen dilution 3) Extinguishment by fuel
removal 4) Extinguishment by fire break
Answer:
4) Extinguishment by fire break
Question:
What is the most critical period in Crisis Management? 1) First 24 hours 2) First week 3) First
month 4) First year
Answer:
