Already Passed
Rust, the most common kind of corrosion, is the action of which element on iron or aluminum?
✔✔Oxygen
Isopropyl alcohol has a flammability range between 2% and 12%; therefore, the Upper Explosive
Limit is: ✔✔12% alcohol in air
A worker's exposure to an airborne contaminant in any 8-hour work shift of any 40-hour work
week is known as the: ✔✔Time weighted average.
Calculating radioactive decay requires information on the initial quantity of materials, quantity
of material at the time of measurement, time interval between the measurements, and the:
✔✔Radioactive decay constant for the materials.
The statistically determined time interval for a radioactive isotope to decay by 50% is called the:
✔✔Half life of the material.
Boyle's law is expressed as: ✔✔P1V1 = P2V2.
,Often described as predictive, preventative, or proactive, which are tools designed to measure the
improvement of safety and health initiatives? ✔✔Behavior, condition, standard
Radiation strength or activity is often measured in: ✔✔Curie.
Current equals voltage divided by the: ✔✔Resistance
What happens to the sling tension of a rigged load when the sling angle from the vertical is
increased? ✔✔The sling tension increases.
The proper angle to place a ladder to ensure adequate safety is: ✔✔4:1
Periodic evaluations and surveys of work practices are which type of indicators of an
organization's safety performance? ✔✔Leading
The three basic choices for applying anthropometric data to the design of the work place include:
✔✔Design for the average, extremes, and range to allow for adjustability.
,Which MOST influences an employee's ability to dissipate body heat while working in hot
environments? ✔✔Sweat production and evaporation
Human-machine interface design principals should incorporate: ✔✔Compatibility, coding, and
arrangement.
Measuring physical and mental capabilities and assuring the safety of the worker and the public
is the purpose of: ✔✔Fitness-for-duty exams.
Ergonomic tasks demands typically fall into three categories including: ✔✔Physical,
environmental, and mental.
Strength, reflexes, and eye-hand coordination tend to decrease with a(n): ✔✔Aging workforce.
Which tool provides evaluations of force, posture, and duration for the neck, trunk, and upper
arms coupled with muscle function and physical loads on the body? ✔✔Rapid Upper Limb
Assessment (RULA)
, The PRIMARY solution to avoiding lifting injuries is to: ✔✔Eliminate lifting.
After all options to automate or mechanize equipment are exhausted, companies may then have
to utilize manual materials handling. When managing the movement of materials, make sure the
materials handled are: ✔✔Predominately on a horizontal plane.
Which is an administrative control aimed at improving the physical capabilities of an individual
aiming to reduce injuries? ✔✔Work Hardening
Which disease often affects the lungs of construction workers doing remodeling and repairs of
bridges and older structures? ✔✔Histoplasmosis
Biological hazard exposures controlled by safe work practices, safety equipment use, and facility
design are examples of: ✔✔Containment
Ingestion of hazardous materials can be sourced to the workplace if workers do not follow:
✔✔Requirements for the separation of foodstuffs from chemicals.