REAL EXAM QUESTIONS WITH WELL
ELABORATED SOLUTIONS
Which of the following is generally NOT true with regard to building evacuation
plans?
a. Plans should be designed so that personnel still know where to exit in virtual total
darkness.
b. Plans should include use of alarm systems as a mode of communication.
c. Plans should specify locations of outdoor mustering areas.
d. Plans should include procedures on how to activate emergency response teams in
tandem with an evacuation. --ANSWER- D: Building evacuation plans should be
designed so that personnel still know where to exit in virtual total darkness; they
should include the use of alarm systems as a mode of communication; and should
specify locations of outdoor mustering areas. Emergency response plans/protocols
usually separately address items related to emergency response team activations.
Computer tools that can assist ASPs in rendering safety-related decisions,
particularly in areas that they may not maintain subject-matter expertise, are
called _________________________.
a. ES&H simulation models
b. expert systems
c. assimilation modules
d. automated self-implementation units --ANSWER- B: Computer tools that can assist
ASPs in rendering safety-related decisions, particularly in areas in which they may
not maintain subject-matter expertise, are called expert systems
Training typically does NOT render improvement in work areas/functions that entail:
a. inherent procedural deficiencies
b. certifications
c. temporary contract-based commitments
d. independent study --ANSWER- A: Training typically does NOT render improvement
in work areas/functions that entail inherent procedural deficiencies or shortcomings.
If procedures are flawed, only enhancements to such will result in associated
improvements. Training generally instructs employees to abide by procedures; thus,
if procedures are insufficient, resulting work will likewise follow suit.
,Colorimetry is best defined as which of the following?
a. Measurement of average temperature extremes over a set period of time
b. The study of how different colors and wavelengths can affect behavior and mood
c. The use of apparatus to determine whether contaminants are present via changes
in color within the apparatus
d. Measurement of biological half-lives (per in vivo sampling) following an inadvertent
uptake of toxins --ANSWER- C: Colorimetry is the process of using glass tube-like
instrumentation to determine
whether contaminants are present in a medium via changes in color to indicator
materials present within the instrumentation.
Which of the following is NOT a typical benefit associated with the use of ventilation
systems?
a. they help reduce the buildup of CO2
b. they help reduce levels of dust
c. they help keep flammable vapor concentrations below hazardous thresholds
d. they help reduce localized noble gas levels (e.g., argon) --ANSWER- D: Ventilation
systems are designed to provide a number of benefits to indoor working
environments; namely, they help reduce the buildup of CO2, help reduce levels of
dust, help keep air temperatures at comfortable levels, reduce unpleasant ambient
odors, and help maintain flammable vapor concentrations, as well as contaminant
levels, below hazardous thresholds.
Electrical fires can often occur due to electrical ___________ or poor ____________.
a. bonding / grounding
b. short-outs / connectivity
c. induction / capacitance
d. reactivity / impedance --ANSWER- B: Electrical fires can often occur due to
electrical short-outs (i.e., shorts) or poor connections. Furthermore, subject fires are
also often initiated due to an overflow of current through a material. The resultant
excess heat that is generated in such scenarios can ultimately ignite nearby
flammable items.
Which of the following is usually NOT associated with the instigation of potential
chemical skin burns/irritation?
a. Sodium hydroxide
b. Degreasers
c. Paint thinners
d. Potassium chloride --ANSWER- D: Many readily accessible chemicals and agents
can be associated with the instigation of chemical burns; such materials typically
, include numerous acids and bases, detergents, degreasers, solvents, harsh soaps,
and cleansers.
What is a GANTT chart?
a. A project management tool used for presenting a logical breakdown of task
requirements.
b. A project management tool used for planning purposes, which graphically
depicts a project plan via a bar-chart layout.
c. A project management tool that graphically tracks a project's budgetary
outsourcing trends via a line-chart layout.
d. A project management tool that calculates a project's ongoing performance
metrics in the way of meeting budgets, schedules, and performance
criteria/deliverables. -ANSWER- B: A GANTT chart is a project management tool used
for planning purposes, which usually depicts a project plan via a bar-chart layout. It is
regularly used by project managers, along with work-breakdown structures and other
project management tools, to assist in determining project timelines, schedules,
budgetary constraints, and critical paths.
A histogram most closely resembles which of the following in its construct?
a. a bar graph
b. a line graph
c. a stem-and-leaf plot
d. a box-and-whiskers plot --ANSWER- A: A histogram most closely resembles a bar
graph in its construct. Each vertically oriented bar typically houses a specific set of
data that falls under the requirements of that particular bar's regime. The larger the
number of data points included within a bar, the taller the bar becomes.
At what noise level does pain typically begin to be felt in the ears?
a. 100 dBA
b. 120 dBA
c. 140 dBA
d. 160 dBA --ANSWER- C: A noise level of 140 dBA is considered to be
typically/medically associated with the threshold of auditory pain.
What helpful end-product tool is conventionally derived from a failure modes and effects
analysis?
a. an action list
b. a reliability plan
c. a fault tree
, d. a frequency/severity concept summary --ANSWER- A: An action list is the usually
sought-after end-product tool that is typically rendered from the conduct of a failure
modes and effects analysis. If this list is well executed after the fact, it normally
provides a substantial level of risk reduction within the workplace.
If an object conveys a force of 19.6 newtons (N) as it perpendicularly affects the earth's
surface after falling a distance of 500 feet (in a vacuum), what is the approximate mass
of the falling object?
a. 30.4 pounds
b. 2.0 kilograms
c. 0.039 pounds
d. 0.98 kilograms --ANSWER- B: If a falling object conveys a force of 19.6 newtons (N)
as it perpendicularly impacts the earth's surface, the approximate mass of the object
is
2.0 kilograms. This is derived via the fundamental mechanics equation F = ma, whereby
F = force, m = mass, and a = acceleration (in this particular case, an acceleration due to
gravity [9.8 m/s2]). In terms of the subject SI units, 1N = (1kg)(1m/s2).
Which of the following acids would be considered the most dangerous to overall human
health?
a. 15M nitric acid
b. 0.1M hydrochloric acid
c. 20M acetic acid
d. 0.01M sulfuric acid --ANSWER- A: Compared to 0.1M hydrochloric acid (HCl), 20M
acetic acid (C2H4O2), and 0.01M sulfuric acid (H2SO4), 15M (molar) nitric acid
(HNO3) would be the most dangerous to overall human health due to its being a
strong acid and having a high molar concentration (15M). In this case example, HCl
and H2SO4 are also strong acids (comparable to nitric), but much less concentrated
(0.1M and 0.01M, respectively); for C2H4O2, although the molar concentration is
higher than that for HNO3 in this instance, it is a very weak acid in nature at nearly
all comparable molarities.
Per trenching-safety program protocols, if a six-foot-deep trench is dug in a gravelsand
environment, what angle must the trench wall(s) not exceed?
a. 46 degrees
b. 40 degrees
c. 34 degrees
d. 28 degrees --ANSWER- Per trenching-safety program protocols, if a six-feet deep
trench is dug in type-C materials (e.g., gravel and/or sand), the trench wall(s) must
not exceed an angle of 34 degrees