OSHA 510 EXAM 250 QUESTIONS AND CORRECT
DETAILED ANSWERS NEWEST 2024-2025 VERSION
ALREADY A GRADED | NEW AND REVISED
What are 4 general requirements for hand and power tools? - 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? - 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. - ANSWER- 2"
Read rails, when used shall be installed at the height midway between
the top edge of the guard rail system and the ________ - 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. -
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. - ANSWER- Covers or guardrails
,Anchorages used for attachment of personal fall arrest equipment shall
be capable of supporting at least - ANSWER- 5,000 lbs
The employer shall provide for ______ of employees in the event of a
fall or shall assure that employees are able to ___________ - ANSWER-
Prompt rescue. Rescue themselves
Connectors shall be protected from fall hazards of more than ____ feet
or ______, whichever is less - 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. - ANSWER- 10
feet
Who is responsible to be sure that each employee exposed to a fall
hazard is trained? - ANSWER- Employer
What is the difference between a danger sign and a caution sign? -
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 _____ - 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 - ANSWER- Fire resistance shields
Cylinders containing _____ or other fuel shall not be taken into confined
spaces. - 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. -
ANSWER- Noncombustible or flameproof screen
At what voltage is guarding required for accidental contact with
electrical equipment? - 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. -
ANSWER- Equipment grounding conductor program
True or false: A circuit breaker is designed to protect equipment from
heat buildup caused by overloads or faults - ANSWER- True
, Each platform on all working levels of scaffolding must be
____________ between the front uprights and the guard rail support. -
ANSWER- Fully planked and decked
What is required on a supported scaffold with a height to base ratio of
more than 4:1? - ANSWER- Guys, ties, and braces
Weinshel scaffolds and scaffold components be inspected for visible
defects by competent person? - 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 _____ - ANSWER- Type A
Cohesive soil with an unconfined compressive strength of 0.5 or less is
Type ____ - ANSWER- Type C
Cohesive soil unconfined compressive strength greater than 0.5 but less
than 1.5 is Type ____ - ANSWER- Type B
Daily inspections of excavations, the adjacent areas, and protective
systems shall be made by a _________ person - 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. - ANSWER- 6 feet
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