OSHA 10 Hour
_____ liquids are those that have a flashpoint at or above 100 degrees Fahrenheit. -
ANSWER✅✅✅Combustible
Any liquids that have a flashpoint at or above 100 degrees Fahrenheit are considered combustible
liquids.
A boom angle indicator, clearly visible to the operator, is required on all of the following equipment
EXCEPT: - ANSWER✅✅✅Cranes with fixed-length and angle booms
Cranes and derricks that have variable angle booms, and cranes with telescoping booms, should be
equipped with a boom angle indicator that is clearly visible to the operator.
A catwalk built over the lower run of a horizontal belt may be guarded on both sides by any of these
guards EXCEPT: - ANSWER✅✅✅Horizontal railings filled with Perforated sheet metal
A platform can be provided over the lower run of horizontal belts and must be guarded on either side by
a railing completely filled in with wire mesh or other filler, or by a solid barrier.
A chemical that will ignite spontaneously in air at a temperature of 130 degree Fahrenheit (54.4 degree
Celsius) or below is identified by the term _____. - ANSWER✅✅✅Pyrophoric
Pyrophoric means a chemical that will ignite spontaneously in air at a temperature of 130 degree
Fahrenheit (54.4 degree Celsius) or below.
A crane's main frame, crawler track and/or outrigger supports, boom sections, and attachments are all
considered part of the _____ of lifting. - ANSWER✅✅✅structural integrity
The structural integrity of lifting for a crane include: the main frame, crawler track and/or outrigger
supports, boom sections, and attachments.
A crane's mobility and safety during lifting operations are governed by the interplay of all these
principles EXCEPT: - ANSWER✅✅✅Operator skill
The four basic lifting principles that govern a crane's mobility and safety during lifting operations are the
center of gravity, leverage, structural integrity and stability.
A multi-point adjustable scaffold must be supported by _____ ropes. - ANSWER✅✅✅More than two
OSHA 10 Hour
,OSHA 10 Hour
Multi-point adjustable scaffolds must be supported by more than two ropes. Normally, four ropes are
used, one secured at each corner of the platform.
A personal protective equipment program includes all these PPE procedures EXCEPT: -
ANSWER✅✅✅repairing
A personal protective equipment program includes the procedure for assessing the workplace for
hazards, identification of needed PPE, the procedure for selecting PPE, the procedure for providing PPE,
and the procedure for using PPE.
A pump jack scaffold must be fitted with two ______ gripping mechanisms to prevent slippage. -
ANSWER✅✅✅Positive
According to OSHA Standards, a pump jack scaffold must be fitted with two positive gripping
mechanisms to prevent slippage.
A worker comes in contact with live electrical parts and is shocked but receives no major injuries. What
would be the MOST LIKELY reason he suffered no electricity-related injuries? - ANSWER✅✅✅He was
wearing nonconductive safety shoes
The worker did not suffer any major injuries because he was wearing nonconductive safety shoes.
A worker on a jobsite is told by a supervisor to back a loaded truck into position for unloading, but the
rear view is obstructed by the load. What is the worker's safest course of action? -
ANSWER✅✅✅Ask coworkers to be flaggers
Improper operation of heavy vehicles poses a life-threatening danger to construction workers. Always
station flaggers behind vehicles that have obstructed rear views.
A worker should always position a ladder at an angle where the horizontal distance from the top
support to the foot of the ladder is _____ the working length of the ladder. - ANSWER✅✅✅1/4
OSHA requires that workers should always position a ladder at an angle where the horizontal distance
from the top support to the foot of the ladder is 1/4 the working length of the ladder.
A worker who is not using fall arrest protection loses his footing at the top of a six-story building, calls
for help, and then falls. If his coworkers on the ground hear his cry, how much time do they have to take
measures to break his fall? - ANSWER✅✅✅2 seconds
OSHA 10 Hour
,OSHA 10 Hour
It only takes 2 seconds for a worker to reach the ground from a height of six stories. Always use fall
protection when working in elevated places.
According to OSHA records for the period 1995 to 1999, per yearly average, 362 construction workers
died on the jobsite due to injuries received due to _____ hazards. - ANSWER✅✅✅fall
According to OSHA records, 362 construction workers died on the jobsite every year from 1995 to 1999
due to injuries received as a result of fall hazards.
According to OSHA statistics, in 75% of struck-by fatalities, the victims were hit by: -
ANSWER✅✅✅Heavy Equipment
OSHA estimates that 75 percent of struck-by fatalities involve heavy equipment like trucks or cranes.
According to OSHA, most crane-related accidents (nearly 45 percent) are caused by: -
ANSWER✅✅✅Boom or crane contact with energized power lines
OSHA has identified that boom or crane contact with energized power lines causes nearly 45 percent of
all crane accidents.
According to OSHA, nearly 45 percent of crane-related accidents are caused by: -
ANSWER✅✅✅Contact with energized power lines
According to statistics, what is the most common electricity-related direct injury? -
ANSWER✅✅✅Burns
The most common electricity-related injury is a burn. They occur when a person touches electrical
wiring or equipment that is improperly used or maintained.
According to the Hazard Communication Standard, all these objects are recognized containers for
hazardous materials EXCEPT: - ANSWER✅✅✅A pipe
A container may be any bag, barrel, bottle, box, can, cylinder, drum, reaction vessel, storage tank, or the
like that contains a hazardous chemical. For the purposes of the HCS, pipes or piping systems, engines,
fuel tanks, or other operating systems in a vehicle are not considered to be containers.
OSHA 10 Hour
, OSHA 10 Hour
After a fall, a suspended worker must keep his arms and legs moving to keep circulation going and avoid
Orthostatic Intolerance. - ANSWER✅✅✅True
All of the following are essential points for the safe use of cords and wiring EXCEPT: -
ANSWER✅✅✅Use only two-wired type cords
Two-wire type cords do not effectively protect in the event of a short circuit. Always use three wire
cords equipped with a path to ground to prevent a severe electrical shock.
All of the following are sources of potential injuries EXCEPT: - ANSWER✅✅✅Objects that fall from
above
Sources of potential injuries include objects that might fall from above, exposed pipes or beams at work
level, exposed liquid chemicals, sources of heat, intense light, noise, or dust, and equipment or materials
that could produce flying particles.
All of the following effects are acute EXCEPT: - ANSWER✅✅✅Dermatitis
Acute effects indicate the symptoms have occurred rapidly. The effects are of short duration and a
result of short-term exposures. Some examples of acute effects are burns, lacerations, and puncture
wounds.
All these items are included in a regular crane inspection EXCEPT: - ANSWER✅✅✅Boom Angle
The following must be inspected on a regular basis: air pressure, tire inflation, clearance for rotating
superstructure, wire rope wear, physical damage to the crane, loose or missing hardware or fasteners,
and fluid leaks.
All these shafts must be securely held in position against endwise thrust EXCEPT: -
ANSWER✅✅✅Horizontal
Each continuous line of shafting must be secured in position against excessive endwise movement.
Inclined and vertical shafts, particularly inclined idler shafts, have to be securely held in position against
endwise.
Although all elements comprising a hazard warning label are important, the LEAST important element is
the label's _____. - ANSWER✅✅✅Color
OSHA 10 Hour
