CHST EXAM SCRIPT VERIFIED QUESTIONS
AND SOLUTIONS COMPLETE REVIEW
MATERIAL
●● 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.
●● 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
●● 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
●● 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.
●● 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
●● 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.
●● 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.
●● 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.
●● 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
●● 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
AND SOLUTIONS COMPLETE REVIEW
MATERIAL
●● 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.
●● 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
●● 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
●● 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.
●● 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
●● 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.
●● 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.
●● 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.
●● 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
●● 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
