UMUC ENMT322 Quiz 2 Latest 2020 JULY

Question 1

Fundamental protection against ionizing radiation involves

Question 1 options:

the use of a Geiger counter.

time, distance, and shielding.

calculation of rems/hour

placement of spent fuel rods in a pool of water.

Question 2

Long-term exposure to vibration (e.g., from working with pneumatic tools that impart force)

Question 2 options:

may be protected against by gripping a tool as tightly as possible.

is especially problematic in warm environments

is not a problem-vibration is harmless.

can result in hand-arm vibration syndrome.

Question 3

Examine the Elements of Ergonomic Programs and trace each step to the AREC process.  Are all of the AREC principles represented in this program? Discuss briefly.

Question 4

Noise

Question 4 options:

travels from a vibrating source in the form of a wave.

is correctly described by all of the other statements.

is one of the most common occupational hazards in the workplace.

can be described in terms of frequency and amplitude.

Question 5

OSHA's Hearing Conservation Program requires employers to monitor noise levels in a workplace when 8 hour Time Weighted Average (TWA) noise exposure reach what level?

Question 5 options:

75 dB

90 dB

85 dB

91 dB

Question 6

A worker is exposed to 90 dB noise levels while performing a specific task. How many hours may that worker be exposed to that noise level without exceeding the noise exposure standard set by OSHA?

Question 6 options:

6 hours

4 hours

16 hours

8 hours

Question 7

Heat stroke:

Question 7 options

is a life-threatening condition.

is an early onset sign of heat stress.

almost always turns out okay for workers who experience it -- they just need to drink plenty of cold liquids.

manifests as an itch or rash afflicting individuals who work in hot, humid environments.

Question 8

Noise controls are the first line of defense against excessive noise exposures.  Which of the controls is ideally the most effective way to prevent hearing loss?

Question 8 options:

Issue every employee their own hearing protection devices and enforce their use.

Limiting the amount of time a person spends at a noise source.

Remove the hazardous noise source or the worker from the workplace.

Increase the distance between the noise source and the worker.

Question 9

Employees exposed to hazardous noise levels must be trained in the effects of noise; the purpose, advantages and disadvantages of hearing protectors; the selection, fit, and care of protectors; and the purpose and procedures of audiometric testing,  How often is this training required to be conducted?

Question 9 options:

Annually

Only one time, upon hiring.

Once every six months

Bi-annually

Question 10

Raynaud's Syndrome is a disease that can cause fatigue, stomach problems, headaches, loss of balance or "shakiness" shortly after or during exposure.

Question 10 options:

True

False

Question 11

Which of the following factors can reduce or eliminate the probability of injury from vibration sources?

Question 11 options:

Limiting the amount of time the tool is used

Tobacco use

Frequent breaks

Proper tool maintenance

 

Question 12

One way to reduce risk of injury from vibration sources is to change the operator's technique for using a vibrating tool.  What type of control is this considered?

Question 12 options:

Engineering Control

Personal Protective Equipment

Training

Work Practice

Question 13

In regions relatively unaccustomed to winter weather, near freezing temperatures can be considered as factors for cold stress.

Question 13 options:

True

False

Question 14

While working outside, you notice that your co-worker is starting to exhibit symptoms of confusion and disorientation.  What type of cold injury can cause these symptoms?

Question 14 options:

Frostbite

Trench Foot

Chillblains

Hypothermia

Question 15

Which of the following are considered work practice controls for heat stress?

Question 15 options:

Buddy system

 

All of the above

Use of special tools

Limit time in the heat and/or increase recovery time spent in a cool environment

Question 17

Which of the following is NOT a source of non-ionizing radiation?

Question 17 options:

Microwaves

Tanning beds

X-rays

The Sun

Question 18

Monitoring must be performed whenever employees may be exposed to hazardous substances.  Which of the following group of workers should be selected for monitoring first?

Question 18 options:

Workers who utilize personal protective equipment

Workers who have been with the company longest

Workers who likely to have the highest exposure

Workers who have expressed concern

Question 19

is the most accurate measurement of exposure because the sampling device goes where you go and collects air from your breathing zone.

Question 19 options:

Personal monitoring

Area monitoring

Bulk sampling

Surface sampling

Question 20

_____________________ is the “Workday Concentration” to which a worker can be exposed daily for a working lifetime without having adverse effects.

Question 20 options:

Permissible Exposure Limit (PEL)

Threshold Limit Value (TLV)

Recommended Exposure Level (REL)

Short Term Exposure Limit (STEL)