9/9/25, 4:57 PM OSHA 500 Construction Trainer
OSHA 500 Construction Trainer EXAM LATEST VERSION
2025-2026 ALL QUESTIONS AND DETAILED CORRECT
ANSWERS WITH RATIONALES ALREADY GRADED A+
audible reverse signal alarm
restricted rear view
requirements (2) observer to signal that its safe to back up
parking
parking precautions for PITs break set
(3)
wheels
chocked
location of equipment when parked at night next to highway
(training conducted by knowledgable trained experienced
certified forklift operator person)
1. formal instruction (classroom)
training requirements (3)
2. practical
3. evaluation of performance (every 3 yrs)
inhalatio
n
Chemicals enter the body (4)
injection
ingestio
n
absorpti
on
silica
3 air contaminant hazards asbes
tos
lead
pathogens
3 biological hazards poisonous
plants
animals
/ 1/1
6
,9/9/25, 4:57 PM OSHA 500 Construction Trainer
tempera
ture
5 physical hazards impact
vibration
radiation
noise
employers must inform when first assigned
employees about a hazard any time a new hazard is introduced
______ and _______
labelin
2 ways GHS change Haz
Comm Standard g SDS
1. barriers
3 ways to engineer out noise 2. low noise machines/ lubricate machines
3. enclose source
trained first aid person
employer ensure prompt on site emergency
medical attention by... (4) contact #s
way to transport
injured worker Eye
wash/ body wash
station
1. deviationsfrom structure's designs during construction
2. modifications
4 unknown Demo hazards
3. hidden materials
4. unknown strengths/ weaknesses of materials
purpose of conduction an determine structural
engineering survey prior to conditions possibility
demo (2) of unplanned
collapses
competent person's survey
responsibilities in demo understand hazards
work (2)
/ 2/1
6
, 9/9/25, 4:57 PM OSHA 500 Construction Trainer
*hazardous atmospheres
other hazards:
unguarded
primary danger of confined
space machines live
wires
mazes
materials that can
engulf worker
biological hazards
(animals)
Oxygen deficient atmosphere <19.5% oxygen
hazards
Flammable atmosphere > 23% oxygen
hazards
methane
carbon
Toxic atmosphere hazards (4)
dioxide
carbon
monoxide
hydrogen
sulfide
entrapm
3 causes of asphyxiation
ent
fatalities in confined spaces
engulfm
ent
toxic atmospheres
metal fumes:
(Al, antimony, Arsenic, berylium, cadmium, chromium,
cobalt, Cu, Fe, Pb, maganese, molybdenum, nickel, silver,
tin, titanium, vanadium, zinc)
contaminants present in
welding fumes (2) shielding gases:
(argon, He, N, CO2)
Process: nitric oxide, nitrogen dioxide, CO, ozone,
phosgene, hydrogen fluoride, carbon dioxide
/ 3/1
6
OSHA 500 Construction Trainer EXAM LATEST VERSION
2025-2026 ALL QUESTIONS AND DETAILED CORRECT
ANSWERS WITH RATIONALES ALREADY GRADED A+
audible reverse signal alarm
restricted rear view
requirements (2) observer to signal that its safe to back up
parking
parking precautions for PITs break set
(3)
wheels
chocked
location of equipment when parked at night next to highway
(training conducted by knowledgable trained experienced
certified forklift operator person)
1. formal instruction (classroom)
training requirements (3)
2. practical
3. evaluation of performance (every 3 yrs)
inhalatio
n
Chemicals enter the body (4)
injection
ingestio
n
absorpti
on
silica
3 air contaminant hazards asbes
tos
lead
pathogens
3 biological hazards poisonous
plants
animals
/ 1/1
6
,9/9/25, 4:57 PM OSHA 500 Construction Trainer
tempera
ture
5 physical hazards impact
vibration
radiation
noise
employers must inform when first assigned
employees about a hazard any time a new hazard is introduced
______ and _______
labelin
2 ways GHS change Haz
Comm Standard g SDS
1. barriers
3 ways to engineer out noise 2. low noise machines/ lubricate machines
3. enclose source
trained first aid person
employer ensure prompt on site emergency
medical attention by... (4) contact #s
way to transport
injured worker Eye
wash/ body wash
station
1. deviationsfrom structure's designs during construction
2. modifications
4 unknown Demo hazards
3. hidden materials
4. unknown strengths/ weaknesses of materials
purpose of conduction an determine structural
engineering survey prior to conditions possibility
demo (2) of unplanned
collapses
competent person's survey
responsibilities in demo understand hazards
work (2)
/ 2/1
6
, 9/9/25, 4:57 PM OSHA 500 Construction Trainer
*hazardous atmospheres
other hazards:
unguarded
primary danger of confined
space machines live
wires
mazes
materials that can
engulf worker
biological hazards
(animals)
Oxygen deficient atmosphere <19.5% oxygen
hazards
Flammable atmosphere > 23% oxygen
hazards
methane
carbon
Toxic atmosphere hazards (4)
dioxide
carbon
monoxide
hydrogen
sulfide
entrapm
3 causes of asphyxiation
ent
fatalities in confined spaces
engulfm
ent
toxic atmospheres
metal fumes:
(Al, antimony, Arsenic, berylium, cadmium, chromium,
cobalt, Cu, Fe, Pb, maganese, molybdenum, nickel, silver,
tin, titanium, vanadium, zinc)
contaminants present in
welding fumes (2) shielding gases:
(argon, He, N, CO2)
Process: nitric oxide, nitrogen dioxide, CO, ozone,
phosgene, hydrogen fluoride, carbon dioxide
/ 3/1
6
