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Test Questions 25
139. Personal protective equipment (PPE) are devices or equipment used to ensure the
safety of employees in the workplace. What devices are considered PPE?
A. Safety glasses
B. Gloves
C. Ear plugs
D. All of the above
140. Studies focused on the interface between humans and their work spaces, tools,
and equipment are referred to as:
A. Time and motion studies
B. Ergonomics studies
C. Health and safety studies
D. Productivity studies
141. Excessive noise, either in short (i.e., instantaneous) or long duration, can cause
hearing loss. What is the generally accepted threshold of noise level above which
an exposure could cause hearing loss?
A. 20 db
B. 45 db
C. 85 db
D. 120 db
142. Lock-out/tag-out refers to removal of electrical power from tools, equipment,
or other electrical circuits. Who has the authority to restore power to tools,
equipment, or other electrical circuits once they have been locked or tagged out?
A. The person who originally locked or tagged out the item
B. Anyone capable of ensuring safety
C. Any supervisor or manager
D. No one
143. Reference documents from organizations like the American National Standards
Institute (ANSI) and the American Society for the Testing of Materials (ASTM)
document standardized approaches, rules, or instructions pertaining to various
aspects of workplace operations. What is the primary advantage of utilizing
these standards?
A. Adaptability
B. Maintainability
C. Consistency
D. Dependability