QUESTIONS AND 100% CORRECT SOLUTIONS
GRADED A+
,Which type of machine guarding technique requires the least amount of participation
from employees? ANSWER >> Physical Guard
According to Maslow's Hierarchy of Needs, what must be met before one's safety needs
can be met? ANSWER >> Human Metabolic Requirements
Maslow's hierarchy of needs ANSWER >> physiological (human metabolic
requirements), safety, love/belonging, esteem, self-actualization
Most effective method for controlling exposures to airborne asbestos fibers during the
removal of asbestos insulation ANSWER >> Wet the insulation thoroughly prior to
removal
respirator for asbestos removal ANSWER >> negative pressure, air-purifying
respirators with HEPA filters
Teratogen 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 ANSWER >>
570,012 BTU
In a Fault Tree analysis, the house shape indicates what? ANSWER >> events that
are expected to occur under normal circumstances
Fault Tree Analysis 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? 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? ANSWER >> Aim. Pull Aim Squeeze Sweep
,Minimum Sample volume is equal to what? 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 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? 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" 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? 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? ANSWER >> Rabies
What is the primary purpose of training? 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 ANSWER >>
Self-paced learning
Employees should be involved in audits when possible for what reasons 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 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? 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 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? ANSWER >>
Human Factors Theory
Human Factors Theory 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 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 ANSWER >> Extension of Human Factors Theory with the
addition of system failure
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