CHST WORKSITE AUDIT EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026
What is the shade number for shielded metal arc welding 1/16, 3/32, 1/8, 5/32 electrodes? - Answers
10
What is the shade number for gas shielded arc welding (nonferrous) 1/16, 3/32, 1/8m 5/32 inch
diameter electrodes? - Answers 11
What is the shade number for gas shielded arc welding (ferrous) 1/16m 3/32, 1/8, 5/32 inch diameter
electrodes? - Answers 12
What shade number is the shielded metal-arc welding 3/16, 7/32m 1/4 inch diameter electrodes? -
Answers 12
What shade number is 5/16, 3/8 inch diameter electrodes? - Answers 14
Atomic hydrogen welding is what shade? - Answers 10-14
What shade number is carbon-arc welding? - Answers 14
What shade number is soldering? - Answers 2
What shade number is torch brazing? - Answers 3 or 4
What shade number is light cutting, up to 1 inch? - Answers 3 or 4
What shade number is medium cutting, 1 inch to 6 inches? - Answers 4 or 5
What shade number is heavy cutting, over 6 inches? - Answers 5 or 6
What shade number is gas welding (light), up to 1/8 inch? - Answers 4 or 5
What shade number is gas welding (medium) 1/8 inch to 1/2 inch? - Answers 5 or 6
What shade number is gas welding (heavy), over 1/2 inch? - Answers 6 or8
What is among the most important safety precautions welders and metal cutters can take? - Answers
Proper eye protection.
Proper shade protection is very important to guard agains the damage caused by what? - Answers UV
and IR radiation created during these operations.
What is the ANSI/ASC code for eye protection with welding? - Answers Z49.1-88
According to the NSC "Accident Prevention Manual for Industrial Operations," tool rests should be
adjusted to not more than_____ fro the grinding wheel and tongue guards should be adjusted to
_______? - Answers 1/8 inch and 1/4 for the tongue guard
How often should powder actuated tools be inspected? - Answers Each day before loading.
Airless spray guns above ______psi must be equipped with a manual safety for operator safety? -
Answers 1000 psi
Does OSHA exempt concrete cleaning from the 30 psi limitation? - Answers Yes
What do the letters PT indicate on line one of safety shoe? - Answers Protective sections of the
standard which is followed by the last two digits for the year the standard with which the footwear
meets compliance. PT 91
What does FI on the safety shoe indicate? - Answers F for Female and I for the impact resistance
rating (75, 50, or 30 foot pounds)
The second line on the safety shoe, if it states MT, stands for what? - Answers Metatarsal protection
designation and rating (75, 50, or 30 foot pounds)
What does line 3 and 4 with the label Cd stand for? - Answers Conductive properties
What does line 3 and 4 with the label EH stand for - Answers Electrical Hazard
What does line 3 and 4 with the label Pr stand for? - Answers Puncture resistance
When working with explosives or blasting agents, equipment must not be operated within_______ of
loaded holes? - Answers 50 feet
True or False, drill holes should be large enough to freely admit the insertion of explosive cartridges? -
Answers True, you don't want them to be too tight.
True or False, primers must never be tamped with? - Answers True. Can't tamper
Drilling is permitted within _________ of remaining butts of old hoses if there is any suspicion of
unexploded charges? - Answers 50
What provides the best protection with dealing with hoisting and rigging equipment? - Answers
Before each job, inspecting the chains, slings and ropes.
A thorough inspection of all chains in use shall be made very how many months? - Answers 12
OSHA Subpart P, Appendix B requires that an excavation in Type A soil that is open less than 24 hours
and is 12 feet or less in depth to have a maximum allowable slope of what? - Answers 1/2:1
Little horizontal, longer vertical
, Type C soil that is 20 feet or less in depth needs to have a maximum allowable slope of what? -
Answers 1 1/2:1
1 and 1/2 to 1.
Longer horizontal, shorter vertical
What type of equipment would indicate the amount of resistance presented to current flow by the
equipment ground? - Answers Ground impedance tester
What is the difference between the volt-ohm-meter and the ground impredance meter? - Answers
Both can indicate the amount of resistance, but the impedance checking devices provide for both high
and low current ground faults, whereas the standard volt-ohm meter would only tell us about
protection from low current faults.
OSHA 1910.404 requires two tests, what are they? - Answers Continuity test and polarity test.
What is a continuity test? - Answers Ensures that that the equipment grounding conductor is
electrically continuous. It is performed on all cord sets, receptacles, etc., which are not part of the
permanent wiring of the structure.
Name four continuity testers that OSHA allows? - Answers Lamp ad battery
A bell and battery
An ohmmeter
A receptacle tester
What is a polarity test? - Answers A check on receptacles and plugs to make sure that the equipment
grounding conductor is connected to the correct terminal. The 4 types of equipment used for a
continuity test can be used for a polarity test.
Does double insulated type equipment require a third wire? - Answers N
What type of equipment could be used to test the continuity of the case ground on a portable
electrical drill? - Answers Volt-ohm meter
What does the split core ammeter provide? - Answers A safe way to check amperage on live circuits.
What two instruments may be used to check the capability of the equipment ground on a branch
circuit within the building or facility? - Answers The megger and the ground loop impedance tester
What is a ground? - Answers An object that connects a piece of electrical equipment to earth or some
conducing body that serves in place of earth.
What does a ground serve as? - Answers A ground serves to complete the electrical circuit and
prevent current from unexpectedly flowing through an individual.
What is a GFCI? - Answers A fast action device that senses a small current leakage to ground and in a
fraction of a second, shuts off the electricity and interrupts the faulty flow to ground.
Will a GFCI detect line to line faults? - Answers No
What does the GFCI do? - Answers Continually matches the amount of current going to and from the
tool along the normal path of the circuit conductors. Whenever the amount differs from teh amount
returning by a set trip level, the GFCI interrupts the electric power.
How fast will the GFCI interrupt the electric power? - Answers 1/40th of a second.
Stainless steel welding results in fumes containing what? - Answers Nickel and chromium.
The electrodes used in stainless steel welding produce what? - Answers Large amounts of flourides
that are released into the air in large quantities.
According to OSHA 1926.250 brick stacks shall not be more than________ in height? - Answers 7 feet
When a loose brick stack reaches a height of _________ feet, it shall be tapered back_______ inches
in every foot of high above________? - Answers 4 feet, it shall be taped back 2 inches in every foot of
height above the 4 foot level.
What should be done with masonry blocks are stacked higher than 6 feet? - Answers The stack shall
be tapered back one-half block per tier above the 6 foot level.
How should lumber be stacked? - Answers On level and solid supported sills. Used lumber shall have
all the nails withdrawn before stacking. The stack should be stable and self supporting.
Lumber piles should not exceed how high? - Answers 20 feet in heigh provided that lumber to be
handled manually shall not be stacked more than 16 feet high.
Means of egress from trench excavations such as a stairway, ladder, ramp or other safe means of
egress are required in trench excavations that are of what depth or more? - Answers 4 feet or more in
depth.
What is the purpose of the hoist line limit switch? - Answers To prevent over travel of the load block.
Often refered to as the anti-two block device.
What is the shade number for shielded metal arc welding 1/16, 3/32, 1/8, 5/32 electrodes? - Answers
10
What is the shade number for gas shielded arc welding (nonferrous) 1/16, 3/32, 1/8m 5/32 inch
diameter electrodes? - Answers 11
What is the shade number for gas shielded arc welding (ferrous) 1/16m 3/32, 1/8, 5/32 inch diameter
electrodes? - Answers 12
What shade number is the shielded metal-arc welding 3/16, 7/32m 1/4 inch diameter electrodes? -
Answers 12
What shade number is 5/16, 3/8 inch diameter electrodes? - Answers 14
Atomic hydrogen welding is what shade? - Answers 10-14
What shade number is carbon-arc welding? - Answers 14
What shade number is soldering? - Answers 2
What shade number is torch brazing? - Answers 3 or 4
What shade number is light cutting, up to 1 inch? - Answers 3 or 4
What shade number is medium cutting, 1 inch to 6 inches? - Answers 4 or 5
What shade number is heavy cutting, over 6 inches? - Answers 5 or 6
What shade number is gas welding (light), up to 1/8 inch? - Answers 4 or 5
What shade number is gas welding (medium) 1/8 inch to 1/2 inch? - Answers 5 or 6
What shade number is gas welding (heavy), over 1/2 inch? - Answers 6 or8
What is among the most important safety precautions welders and metal cutters can take? - Answers
Proper eye protection.
Proper shade protection is very important to guard agains the damage caused by what? - Answers UV
and IR radiation created during these operations.
What is the ANSI/ASC code for eye protection with welding? - Answers Z49.1-88
According to the NSC "Accident Prevention Manual for Industrial Operations," tool rests should be
adjusted to not more than_____ fro the grinding wheel and tongue guards should be adjusted to
_______? - Answers 1/8 inch and 1/4 for the tongue guard
How often should powder actuated tools be inspected? - Answers Each day before loading.
Airless spray guns above ______psi must be equipped with a manual safety for operator safety? -
Answers 1000 psi
Does OSHA exempt concrete cleaning from the 30 psi limitation? - Answers Yes
What do the letters PT indicate on line one of safety shoe? - Answers Protective sections of the
standard which is followed by the last two digits for the year the standard with which the footwear
meets compliance. PT 91
What does FI on the safety shoe indicate? - Answers F for Female and I for the impact resistance
rating (75, 50, or 30 foot pounds)
The second line on the safety shoe, if it states MT, stands for what? - Answers Metatarsal protection
designation and rating (75, 50, or 30 foot pounds)
What does line 3 and 4 with the label Cd stand for? - Answers Conductive properties
What does line 3 and 4 with the label EH stand for - Answers Electrical Hazard
What does line 3 and 4 with the label Pr stand for? - Answers Puncture resistance
When working with explosives or blasting agents, equipment must not be operated within_______ of
loaded holes? - Answers 50 feet
True or False, drill holes should be large enough to freely admit the insertion of explosive cartridges? -
Answers True, you don't want them to be too tight.
True or False, primers must never be tamped with? - Answers True. Can't tamper
Drilling is permitted within _________ of remaining butts of old hoses if there is any suspicion of
unexploded charges? - Answers 50
What provides the best protection with dealing with hoisting and rigging equipment? - Answers
Before each job, inspecting the chains, slings and ropes.
A thorough inspection of all chains in use shall be made very how many months? - Answers 12
OSHA Subpart P, Appendix B requires that an excavation in Type A soil that is open less than 24 hours
and is 12 feet or less in depth to have a maximum allowable slope of what? - Answers 1/2:1
Little horizontal, longer vertical
, Type C soil that is 20 feet or less in depth needs to have a maximum allowable slope of what? -
Answers 1 1/2:1
1 and 1/2 to 1.
Longer horizontal, shorter vertical
What type of equipment would indicate the amount of resistance presented to current flow by the
equipment ground? - Answers Ground impedance tester
What is the difference between the volt-ohm-meter and the ground impredance meter? - Answers
Both can indicate the amount of resistance, but the impedance checking devices provide for both high
and low current ground faults, whereas the standard volt-ohm meter would only tell us about
protection from low current faults.
OSHA 1910.404 requires two tests, what are they? - Answers Continuity test and polarity test.
What is a continuity test? - Answers Ensures that that the equipment grounding conductor is
electrically continuous. It is performed on all cord sets, receptacles, etc., which are not part of the
permanent wiring of the structure.
Name four continuity testers that OSHA allows? - Answers Lamp ad battery
A bell and battery
An ohmmeter
A receptacle tester
What is a polarity test? - Answers A check on receptacles and plugs to make sure that the equipment
grounding conductor is connected to the correct terminal. The 4 types of equipment used for a
continuity test can be used for a polarity test.
Does double insulated type equipment require a third wire? - Answers N
What type of equipment could be used to test the continuity of the case ground on a portable
electrical drill? - Answers Volt-ohm meter
What does the split core ammeter provide? - Answers A safe way to check amperage on live circuits.
What two instruments may be used to check the capability of the equipment ground on a branch
circuit within the building or facility? - Answers The megger and the ground loop impedance tester
What is a ground? - Answers An object that connects a piece of electrical equipment to earth or some
conducing body that serves in place of earth.
What does a ground serve as? - Answers A ground serves to complete the electrical circuit and
prevent current from unexpectedly flowing through an individual.
What is a GFCI? - Answers A fast action device that senses a small current leakage to ground and in a
fraction of a second, shuts off the electricity and interrupts the faulty flow to ground.
Will a GFCI detect line to line faults? - Answers No
What does the GFCI do? - Answers Continually matches the amount of current going to and from the
tool along the normal path of the circuit conductors. Whenever the amount differs from teh amount
returning by a set trip level, the GFCI interrupts the electric power.
How fast will the GFCI interrupt the electric power? - Answers 1/40th of a second.
Stainless steel welding results in fumes containing what? - Answers Nickel and chromium.
The electrodes used in stainless steel welding produce what? - Answers Large amounts of flourides
that are released into the air in large quantities.
According to OSHA 1926.250 brick stacks shall not be more than________ in height? - Answers 7 feet
When a loose brick stack reaches a height of _________ feet, it shall be tapered back_______ inches
in every foot of high above________? - Answers 4 feet, it shall be taped back 2 inches in every foot of
height above the 4 foot level.
What should be done with masonry blocks are stacked higher than 6 feet? - Answers The stack shall
be tapered back one-half block per tier above the 6 foot level.
How should lumber be stacked? - Answers On level and solid supported sills. Used lumber shall have
all the nails withdrawn before stacking. The stack should be stable and self supporting.
Lumber piles should not exceed how high? - Answers 20 feet in heigh provided that lumber to be
handled manually shall not be stacked more than 16 feet high.
Means of egress from trench excavations such as a stairway, ladder, ramp or other safe means of
egress are required in trench excavations that are of what depth or more? - Answers 4 feet or more in
depth.
What is the purpose of the hoist line limit switch? - Answers To prevent over travel of the load block.
Often refered to as the anti-two block device.
