Most effective method for controlling exposures to airborne asbestos fibers during the
removal of asbestos insulation - (correct answer) Wet the insulation thoroughly prior
to removal
respirator for asbestos removal - (correct answer) negative pressure, air-purifying
respirators with HEPA filters
Teratogen - (correct answer) a substance that crosses the placenta and harms the
fetus
How much heat would be released from the complete combustion of a 5 gal container of
gasoline. Density = 6.073 lbs/gas; heating value= 18,772 BTU/lb - (correct answer)
570,012 BTU
In a Fault Tree analysis, the house shape indicates what? - (correct answer) events
that are expected to occur under normal circumstances
Fault Tree Analysis - (correct answer) a visual method for analyzing the
interrelationships among failures; top down, deductive failure analysis in which an
undesired state of a system is analyzed using Boolean logic to combine a series of
lower-level events
What is the most important duty of the safety manager at a facility? - (correct answer)
Being a risk assessment resource to the management team
When using fire extinguishers, a common mnemonic device is "P-A-S-S". What does
the "A" in PASS stand for? - (correct answer) Aim. Pull Aim Squeeze Sweep
Minimum Sample volume is equal to what? - (correct answer) Limit of quantification
(LOQ) times 1,000 divided by the contaminant target concentration
,An object of mass 92 kg rolls down a hill at 9.1 m/s. Calculate the momentum of the
object. p=mv - (correct answer) 837.2 kg x m/s (p=mv ; m=mass (kg) ; v=velocity
(m/s)
"White Finger" is an injury that can result from what? - (correct answer) Vibration.
Disorder that affects the blood vessels, nerves, muscles, and joints of the hand, wrist,
and arm. White finger can cause poor blood circulation, causing skin to become pale or
waxy
What is the purpose of the Water Armor or "Turtle Suit" - (correct answer) To protect
the body from high pressure blasts. Suit protects the chest, legs, and arms from
glancing blows of up to 40,000 psi
Which disease was once the leading cause of death in the United States? - (correct
answer) Tuberculosis. Disease that attacks the lungs and other parts of the body,
spread through the air when infected people cough, sneeze, or spit
Paralysis, hallucinations, and hyper-salivation are all potential symptoms of what
disease? - (correct answer) Rabies
What is the primary purpose of training? - (correct answer) To solve a problem in
the workplace. Safety training program should be a well thought out and a needs
analysis should be performed
Computer based training is most helpful for what type of delivery method - (correct
answer) Self-paced learning
Employees should be involved in audits when possible for what reasons - (correct
answer) Workers are most in contact with potential safety/health hazards, Employees
are more likely to support and use programs in which they have input, groups have a
wider range of experience than individuals
You have three resistors valued respectively at 5Ω, 7Ω, and 10Ω in a parallel circuit.
What is the total resistance of the circuit?
1/Rparallel=1/R1 + 1/R2 + 1/Rn - (correct answer) 2.27 (1/Rparallel = 0.2 + 0.14 +
0.1
1/Rparallel = 0.44
Rparallel=1/0.44-2.27)
What concept is particularly important when addressing chemical spills? - (correct
answer) Specific Gravity. describes the density of a liquid compared to the density of
water. Low specific gravity chemicals with float on surface of water
Specific Gravity - (correct answer) Describes the density of a liquid compared to the
density of water. </=1 lighter than water; >=1 heavier than water
,Which theory states that ALL accidents are a result of human error? - (correct answer)
Human Factors Theory
Human Factors Theory - (correct answer) theory that states accidents are entirely a
result of human error. This is due to overload, in which a work task is beyond the
capability of the worker, inappropriate work response, and inappropriate activities such
as performing a task without sufficient training
Heinrich's Domino Theory - (correct answer) theory that personal injury only occurs
as a result of a hazard, which exists onlly through the fault of careless persons or poorly
designed or improperly maintained equipment. Does state that 2% of accidents are
unavoidable
Accident/Incident Theory - (correct answer) Extension of Human Factors Theory
with the addition of system failure
Additional elements:
Ergonomic Traps - incompatible work station/tools
Decision to Error - Unconscious or conscious
System Failure - Management, policy, training
Epidemiological Theory - (correct answer) focuses primarily on industrial hygiene
and the relationship between environmental factors and disease
What is the purpose of course evaluation? - (correct answer) To improve future
training sessions. obtain feedback from participants to ensure that future training
sessions are improved. In addition, the actual work site should be evaluated to
determine if the training is effective
The following are part of the CDC strategy to eliminate transmission of the hepatitis B
Virus - (correct answer) Screening of pregnant women for the virus, Vaccination of
adults at increased risk, infant vaccination
What is the maximum allowable size of a metal drum for Class II and Class III
Combustible Liquids - (correct answer) 60 Gallons. Max size of an approved
portable tanks is 660 gallons
What is a PRP in environmental Regulations? - (correct answer) Potentially
Responsible Party. Under CERCLA, EPA is able to identify PRPs for hazardous
material sites
, What is the main difference between RCRA and Superfund? - (correct answer)
RCRA focuses on active and future facilities while Superfund (Comprehensive
Environmental Response, Compensation, and Liability Act) focuses on historical and
abandoned sites
RCRA - (correct answer) Resource Conservation and Recovery Act: banned all
open dumping of waste, encouraged source reduction and recycling, and promoted the
safe disposal of municipal waste
How are humans typically infected with Q fever? - (correct answer) Inhalation of
airborne organisms. typically airborne barnyard dust contaminated by dried placental
material, birth fluids, and excreta of infected herd animals
If an object weighs 23 pounds and the task has an RWL of 51 pounds, what is the lifting
index - (correct answer) 0.45 (lifting index is calculated by dividing the actual weight
of the object by the recommended weight limit for the task. Should be 1.0 or below
What is the general oxygen content in normal air? - (correct answer) 21% (air is
78% nitrogen, 20.9% oxygen, and 2% other)
Oxygen deficient atmosphere - (correct answer) 19.5% (O2/vol) or less
Oxygen rich atmosphere - (correct answer) 23.5% or more
Total cost of a loan paid over 5 years is $67,600. Interest rate is 6%. What was the
original amount of loan without interest?
I=pni (I = amount interest paid, p=principal (amt borrowed), n= number of years, i =
interest rate) - (correct answer) $52,000 (since total cost equals the principal added
to the amount of interest paid rearrange equation total cost = I+p=pni+p
pni + p = p(5)(0.06) + p = $67,600
0.3p + p = $67,600
1.3p = $67,600
p = $52,000
The horizontal location (H) is defined as: - (correct answer) The distance of the
hands away from the midpoint between the ankles (NIOSH lifting equation). Distance is
measured at the origin and destination of the lift
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