Environmental science

Question 1

1.

The machine guarding standards do not include provisions for __________.

Answer

point of operation guarding
guarding for wood working machinery
power transmission guarding
ionizing radiation guards

4 points   

Question 2

1.

In what standard would you find a specific prohibition against modifying the end of a plug-in cord?

Answer

1910.311
1910.323
1910.334
1910.332

4 points   

Question 3

1.

When the periphery of the blades of a fan is less than seven feet above the floor or working level, the blades shall be guarded with a guard having openings no larger than __________.

Answer

three inches
four inches
one half inch
one inch

4 points   

Question 4

1.

For 120-volt electrical installations built after 1981 with exposed live parts on one side and grounded parts on the other side, the minimum clear distance in the direction of access to live parts is:

Answer

2.5 feet
3 feet
3.5 feet
exposed live parts are not permitted

4 points   

Question 5

1.

A(n) __________ is a device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating.

Answer

ground fault circuit interrupter
circuit breaker
automatic re-closing device
hard usage fuse

4 points   

Question 6

1.

Which of the following is/are NOT discussed in the mechanical power press standard?

Answer

Light curtains
Pull-outs
Stopping time
Limit extenuators

4 points   

Question 7

1.

Which of the following special industries does not have a specific standard dedicated to the industry?

Answer

Grain handling
Logging operations
Meatpacking
Telecommunications

4 points   

Question 8

1.

In arc welding operations, cables with splices within __________ shall not be used.

Answer

10 feet (3 m) of the holder
20 feet (6 m) of the holder
1/3 the length of the cord
the vicinity of combustible materials

4 points   

Question 9

1.

Whenever welding or cutting is performed in locations where other than a minor fire might develop, which of the following must be done as a precautionary measure?

Answer

The fire department should be notified.
Fire watchers should be stationed to observe the operation.
Such operations are prohibited.
A barrier of non-combustible materials must be erected around the operation.

4 points   

Question 10

1.

In which standard would one find standards dealing with guarding of power drive shafts, belts and pulleys, and chains and sprockets?

Answer

These would be found in the general machine guarding provisions of 1910.212.
These would be found in 1910.219.
These would be found in 1910.217.
There are no specific standards for these situations. OSHA uses the general duty clause to deal with this issue.

Discuss some of the circumstances where mechanical ventilation is required in the welding standards. Do you believe this requirement is reasonable? Why, or why not?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Discuss some of the problems that might be encountered when implementing OSHA’s machine guarding standards in the workplace. Do you feel that the standards are adequate to control machine guarding hazards in general industry? Why, or why not?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

A vertical standard is one that applies to a specific industry such as construction (29 CFR 1926). Do you think OSHA should have more vertical or industry-specific standards, or should there just be one set of horizontal standards that apply to all industries? Why do you think OSHA promulgated vertical standards in the first place, and to what extent do you think politics played a part in this process? This answer should also have at least 150 words.

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