JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV MINE HEALTH AND SAFETY ENGINEERING Previous Question Paper (September - 2020 - R15)

B.Tech | IV | II | R15 | September - 2020

Answer PaperPaper Code: 128DCMaximum Marks: 75Time: 2 Hours

Answer any Five Questions. All Questions Carry Equal Marks.

Main

1

Discuss about the different costs involved in the Accidents in detail.

15 marks

Answer

Accident costs in mining are categorized into direct costs and indirect costs. The total economic impact is often represented by the Iceberg Theory, where direct costs are visible above the surface, while indirect costs remain hidden and significantly larger.

Direct costs are those covered by insurance or immediate out-of-pocket expenses, including:

  • Medical and hospital expenses for injured personnel.
  • Compensation payments and legal fees.
  • Repair or replacement costs for damaged machinery, equipment, and mine infrastructure.
  • Costs associated with emergency rescue operations and site cleanup.

Indirect costs are often four to ten times higher than direct costs and include:

  • Production Loss: Downtime of machinery and the entire section, leading to reduced output and missed production targets.
  • Administrative Costs: Time spent by management and safety officers investigating the accident, preparing reports, and attending legal hearings.
  • Training and Replacement: Costs associated with recruiting and training new workers to replace those injured or deceased.
  • Morale and Productivity: A decline in worker morale leading to reduced efficiency, increased absenteeism, and potential labor unrest.
  • Reputation and Regulatory Impact: Potential fines from regulatory bodies, increased insurance premiums, and damage to the company's reputation which may affect future contracts or investment.

Effective safety management requires minimizing both types of costs through proactive risk assessment, rigorous training, and the implementation of robust engineering controls to prevent accidents before they occur.

2

Write short notes on the following terms:

15 marks
a

Accident Vulnerability

5 marks

Answer

Accident vulnerability refers to the inherent susceptibility or exposure of a specific work environment, machine, or individual to the occurrence of accidents. In mining, it is determined by the interaction between hazardous conditions (such as unstable strata or methane presence) and the effectiveness of existing safety controls. A high level of vulnerability implies that even minor deviations from standard operating procedures are likely to result in an incident, necessitating proactive risk assessment and the implementation of engineering controls to reduce the probability of failure.

b

Severity Index

5 marks

Answer

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c

Accident proneness

5 marks

Answer

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3

Discuss about the present scenario of opencast accidents in Indian coal mines.

15 marks

Answer

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4

Write a detailed Accident Enquiry report for a major roof fall accident involving three fatalities in a Bord and Pillar development district using SDLs?

15 marks

Answer

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515 marks
a

What is the difference between Industrial Safety and System Safety?

7 marks

Answer

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b

Explain about Fault tree analysis.

8 marks

Answer

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6

Discuss about Potential or Predictive Human Error Analysis.

15 marks

Answer

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715 marks
a

Discuss with an example about Risk estimation.

7 marks

Answer

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b

Explain about the Risk elimination methods.

8 marks

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815 marks
a

What is the need and importance of implementation of safety management in Indian Mines?

8 marks

Answer

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b

Discuss about the status of implementation of Safety Management System in Indian coal mines.

7 marks

Answer

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About this paper

This page contains the solved question paper with answers of MINE HEALTH AND SAFETY ENGINEERING from JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD for B.Tech MNE-MIE IV II, September - 2020, R15.

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