OSHA 10 Hour Exam Questions With all
Correct Answers
_____ 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
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
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.
.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.
