OSHA 510 [ACTUAL EXAM] LATEST VERSION [QUESTIONS AND ANSWERS] WITH
STUDY GUIDE DETAILED AND VERIFIED FOR GUARANTEED PASS- LATEST UPDATE
2025 GRADED A
Which of the following violations exist when an employer has demonstrated an
intentional disregard for the requirements of the OSHA act or a plain indifference to
employee safety and health? - CORRECT ANSWER Willfull/repeat
Under 29 CFR 1926 Addendum Multi employer citation policy, OSHA clarifies
employers into one or more of the following four categories; - CORRECT ANSWER
1. Creating employer
2. Correcting employer
3. Controlling employer
4. Exposing employer
Employers with ____ or fewer employees at all times during the last calendar year do
not need to keep _____ - CORRECT ANSWER 10, Records
The OSHA 300 A summary must be posted from ______ to _____ in a _______ -
CORRECT ANSWER Feb 1st - April 30th. In a common area where notices to
employees are usually posted
In OSHA record keeping, an _________ is the number of recordable injuries and
illnesses occurring among ______ full-time workers. - CORRECT ANSWER
Incident rate, 100
Where is the definition of a competent person located? - CORRECT ANSWER
1926.32 F
Where is the definition of a qualified person located? - CORRECT ANSWER
1926.32 M
Program shall provide for frequent and regular inspections of the job sites, materials
and equipment to be made by a ______ designated by the employer. - CORRECT
ANSWER Competent person
_______ shall instruct each employee in the recognition and avoidance of unsafe
conditions and the regulations applicable to his work environment to control or eliminate
any hazards or other exposures to illness or injury - CORRECT ANSWER
Employer
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True or false: the competent person shall be responsible for the development and
maintenance of an effective fire protection and prevention program. - CORRECT
ANSWER False
Fire extinguishers rated not less than 2A, shall be provided for each ______ sq ft of the
protected building area. Travel distance from any point of the protected area to the
nearest fire extinguisher shall not exceed _____ - CORRECT ANSWER 3,000 sq
ft/ 100 ft
What clearance must be maintained for the following:
Between the top level of stored materials and sprinkler deflectors:
Around the path of travel of fire doors:
Between stored materials in a fire door opening: - CORRECT ANSWER 36"
24"
36"
What are 4 general requirements for hand and power tools? - CORRECT ANSWER
Maintained in safe condition, guarding, switches, PPE
When using a PFAS personal fall arrest system, what is the maximum freefall distance
before a fall is decelerated? - CORRECT ANSWER 6 feet
A hole is a gap or void of ______ or more in its least dimension, in a floor, roof, or other
walking/working surface. - CORRECT ANSWER 2"
Read rails, when used shall be installed at the height midway between the top edge of
the guard rail system and the ________ - CORRECT ANSWER Work surface
Guard rail system shall be capable of withstanding, without failure, a force of at least
_______ pounds applied within ___ of the top edge. - CORRECT ANSWER 200
lbs, 2"
Each employee walking/working surfaces shall be protected from falling through holes
more than 6 feet above lower levels by _________ erected around such holes. -
CORRECT ANSWER Covers or guardrails
Anchorages used for attachment of personal fall arrest equipment shall be capable of
supporting at least - CORRECT ANSWER 5,000 lbs
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The employer shall provide for ______ of employees in the event of a fall or shall
assure that employees are able to ___________ - CORRECT ANSWER Prompt
rescue. Rescue themselves
Connectors shall be protected from fall hazards of more than ____ feet or ______,
whichever is less - CORRECT ANSWER 30 ft, contact w lower level
Each employee on a scaffold more than ____ feet above a lower level shall be
protected from falling through that lower level. - CORRECT ANSWER 10 feet
Who is responsible to be sure that each employee exposed to a fall hazard is trained? -
CORRECT ANSWER Employer
What is the difference between a danger sign and a caution sign? - CORRECT
ANSWER Danger sign is white/ black/ red
Caution sign is yellow primarily with black
Accident prevention tags shall be used as a temporary means of warning employees of
an existing hazard, such as _____ - CORRECT ANSWER Defective tools
Cylinders shall be kept far away enough from the actual welding or cutting operation so
that sparks, hot slag, or flame will not reach them. When this is impractical, __________
_________ _________ shall be provided - CORRECT ANSWER Fire resistance
shields
Cylinders containing _____ or other fuel shall not be taken into confined spaces. -
CORRECT ANSWER Oxygen or Acetylene
Whenever practical, all arc welding and cutting operations shall be shielded by
______________ which will protect employees and other persons working in the vicinity
from the direct rays of the arc. - CORRECT ANSWER Noncombustible or
flameproof screen
At what voltage is guarding required for accidental contact with electrical equipment? -
CORRECT ANSWER 50v
The employer shall establish and implement and assured _____________ On
construction sites covering all quartzite, receptacles which are not part of the building or
structure, and equipment connected by cord and plug which are available for use or
used by employees. - CORRECT ANSWER Equipment grounding conductor
program
True or false: A circuit breaker is designed to protect equipment from heat buildup
caused by overloads or faults - CORRECT ANSWER True
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Each platform on all working levels of scaffolding must be ____________ between the
front uprights and the guard rail support. - CORRECT ANSWER Fully planked and
decked
What is required on a supported scaffold with a height to base ratio of more than 4:1? -
CORRECT ANSWER Guys, ties, and braces
Weinshel scaffolds and scaffold components be inspected for visible defects by
competent person? - CORRECT ANSWER Before each work shift and after any
occurrence that can affect the intensity.
Cohesive soil with an unconfined compressive strength of 1.5 tons per square foot or
greater is type _____ - CORRECT ANSWER Type A
Cohesive soil with an unconfined compressive strength of 0.5 or less is Type ____ -
CORRECT ANSWER Type C
Cohesive soil unconfined compressive strength greater than 0.5 but less than 1.5 is
Type ____ - CORRECT ANSWER Type B
Daily inspections of excavations, the adjacent areas, and protective systems shall be
made by a _________ person - CORRECT ANSWER Competent person
Walkways shall be provided for employees or equipment are required permitted to cross
over excavations. Guard rails shall be provided where walkways are _____ ft or more
above lower levels. - CORRECT ANSWER 6 feet
___________ ___________ ___________ means an area alongside a masonry wall,
which is under construction, and which is clearly demarcated to limit access by
employees - CORRECT ANSWER Limited access zone
All masonry walls of 8 feet in height shall be adequately braced to
prevent________________________ unless the wall is adequately supported. -
CORRECT ANSWER Overturning and to prevent collapse
Prior to permitting employees to start demolition operations, an
____________________ shall be made by a competent person, of the structure to
determine the condition of the framing, floors, and walls and the possibility of unplanned
collapse of any portion of the structure. - CORRECT ANSWER Engineering survey
The ________________ shall inspect ladders on a periodic basis for structural defects
or any occurrence that could affect their use. - CORRECT ANSWER Competent
person