Reference no: EM133188012

ENGIN 5501 Mine Safety and Environmental Engineering

Question 1. Define the following terms
• Hazard
• Accident
• Disaster
• Risk
• Hazards management
• Practicable
• Risk Assessment
• Risk Control

Question 2. Define the following
• Exposure
• Probability
• Frequency
• Severity
• Risk

Question 3. Select one risk assessment technique. What classifications of risk exist in the method? Which of these requires action and what are the timelines are involved? What options are available within a Risk Control Hierarchy cite some examples.

Question 4. Look at the photograph below, identify the potential hazards and describe some of the controls that can used to reduce the hazards.

Question 5. What is bow tie analysis; provide details on how it is used.

Question 6. Define the purpose of ventilation in underground mines and surface facilities on mine sites.

Question 7. Automation will reduce safety hazards in the mining industry. Discuss this statement.
Look at the photograph below, identify the potential hazards and describe some of the controls that can reduce the hazards.

Question 8. Define the following:
• TLV-TWA
• TLV-STEL
• TLV-C
Using the Worksafe New Zealand code for mine ventilation, cite the legal requirements for the concentration of the following in the general body of ventilation airflow (maximum or minimum)
• Oxygen
• Methane
• Carbon dioxide
• Carbon monoxide
• Hydrogen sulphide
• Respirable dust (no silica)
• Respirable dust (with silica)
• Oxides of Nitrogen
• Diesel particulate matter

Question 9. What is DPM? What are the current exposure limits for DPM? What methods of control exist?

Question 10. Detail the methods that can be used to measure respirable dust

Question 11. What is a heat stress index; provide details of four such indices, including any liits such as modify work, stop work etc..

Question 12. List and briefly describe the general preventative measures, which can be used to control or prevent exposure to high exposures to heat and humidity.

Question 13. What is Ergonomics? Detail an example of an ergonomic design used in the mining industry.

Question 14. What is the Brief and Scala method?

Question 15. What factors need to accounted for when designing a system that requires manual handling of materials?

Question 16. Describe HAZOP and describe its applicability and any shortcomings.

Question 17. Describe Fault tree analysis and describe its applicability and any shortcomings.

Question 18. What does ALARA stand for? What does ALARP stand for?

Question 19. For the following situations determine the effective noise level in dB(A)
a. A rock drill produces a sound pressure level of 84 dB (A) in a heading. If two more drills were to operate in the heading what would be the expected noise level?
b. Currently a conveyor operator works for a shift length of 8 hours and is subjected to a noise exposure of 90 dB (A) over the shift. If this worker works a double shift at his normal workstation what will be his noise exposure for that day?
c. A continuous miner operator sitting on the machine is exposed to a noise level of 90 dB
(A) when sat 3m from the noise source. If this operation were to be made a line of site remote operation with the operator being an equivalent distance of 9 m away from the noise source what would his noise exposure be?
d. Determine the equivalent 8 hour noise exposure level for a worker exposed to an equivalent continuous sound pressure of 82 dB (A) over a 10 hour shift?

Question 20. An analysis of air samples taken in a return airway indicates the following gas concentrations: Carbon dioxide: 0.25 percent, Hydrogen Sulphide: 5 ppm, Sulphur Dioxide: 0.9 ppm. Determine the threshold limit values, TWA and STEL for the mixture.

Question 21. Using the Brief and Scala method determine the TLV-TWA for Hydrogen Sulphide for an 12 hour shift if the TWA-TLV for an 8 hour shift is 10ppm

Question 22. What is a TARP? Cite some examples of a TARP

Question 23. What should appear in a mine traffic management plan?

Case Study and Risk Assessment assignments

Papers should be structured as follows, with each part of the report beginning on a new page:
o Title page with assignment title and name and s student name
o Contents page
o List of figures (if any)
o Body of paper (main text) - the structure and sub-headings of the report will vary from topic to topic
o Discussion
o Conclusions (if any)
o References (all reference material that supports or adds to the student's understanding of the main text)
o All figures and tables need to be appropriately referenced and have appropriate captions

Page Numbering
The text and end matter should be numbered in a single sequence (beginning with the first page of the main text and continuing through to the final page of the end matter) using Arabic numerals (1, 2, 3, 4...).

Word Count
An assignment report will normally be a text of not more than 5,000 words reporting original work carried out by the student, including, but not restricted to, visual presentations.
Please note the assignment report word counts do not include references.

General Text
Type Size and Appearance
o The preferred typescripts are Times New Roman 12, Arial 11 or Calibri 12 or another font of similar size and appearance.
o Line spacing should be set to 1.5 (if using Harvard style) or double (if using APA style).
o Assignment report submission should ordinarily be made in Word format

Attachment:- Mine Safety and Environmental Engineering.rar