com-mmlg2000-2013

SYLLABUS FOR THE EXAMINATION FOR FIRST CLASS MANAGER'S CERTIFICATE OF COMPETENCY

(Under Coal Mines Regulations, 1957)

Mine Management; Legislation and General Safety Mine Management: Introduction: Evolution of management; theory and practice, principles of scientific management; elements of management function; planning; organisation and control; structure and design of organisation for mining enterprises. Personal Management and Organisational behaviour: Selection; training and development of human resources for mining enterprises; leadership; study of traditional leader behaviour; autocratic; democratic and Laissez-Faire behaviours; conflict management; conflict in organisation; sources of conflict; dealing with conflict; organising for conflict resolution; conflict and growth; individual motivation; two way personal communication Production Management: Determination of norms and standards of operations by work study; analysis of mine capacities and capability; production planning; scheduling and control; short term and long term planning; productivity; concepts and measurements; application of Ergonomics in mine operation. Financial Management: Capital budgeting; techniques for mining project; project evaluation; payback period and IRR; methods of cost analysis and cost control; break-even charts; working capital management; ERP( Enterprise Resource Planning). Mining Environment: EIA (Environment Impact Assessment), EMP (Environment Management Plan), ETP(Effluent Treatment Plant), STP (Sewerage Treatment Plant) threat to environment from underground and surface mining, means of mitigation, treatment of pollutants, monitoring systems, water management; mine closure plan; R&R (rehabilitation and resettlement). Economic Impact of Mining: Economics of mining, effect on community before, during and after mining; corporate social responsibility (CSR). Materials Management for mining sector; ABC analysis, Inventory Management. Industrial Accident: Study of human factors of industrial accidents; their causes and remedies. Mine Legislation: Health and Safety Laws: The Mines Act, 1952; Mines Rules, 1955; Coal Mine Regulation, 1957; Mines Rescue Rules, 1985; provisions of Indian Electricity Rules, 1956 applicable to mines; Mine Vocational Training Rules, 1966; other rules and legislation applicable to coal mines.

General Safety in Mines: Safety in Mines: Duty of care; occupational hazards of mining; causes and prevention; accidents and their classification; accident statistics; frequency rate and severity rates; cause-wise analysis; basic causes of accident occurrence; investigations into accidents and accident reports; in-depth study into various causes of accidents; measures for improving safety in mines; TRAP (take responsibility in accident prevention); cost of accident; safety management system; contribution of human elements in mine safety; workers participation in safety management; ISO and safety audit; safety conferences; tripartite and bipartite committees; mine environment monitoring and control; role of information technology in safety management. Risk Management: Theory and application, baseline, continuous and issue based risk assessment, risk management techniques and applications, means of managing (minimizing or eliminating) risk, computer application and simulations, managers role in risk management, due diligence, application of risk assessment and risk management with reference to due diligence. Disaster management; Emergency services, equipments and procedures, emergency control rooms, rescue and recovery; procedure and responsibilities, safety of persons engaged in emergency response, investigations and reports; assessment of damage, mine rescue; mine gases and their physiological effects; rescue equipments; resuscitation and reviving apparatus; selection and training for rescue work. First aid and ambulance work. Notified and occupational diseases; silicosis and pneumoconiosis; physiological aspects of breathing in dust laden atmosphere; dust sampling and sampling instruments; methods of counting and analysis; other mines diseases and their symptoms; prevention and treatment. Lighting: general principles of artificial lighting; lighting standards and their assessment. Sanitation and health in mines. Safety related issues in coal beneficiation and transport.

Afternoon Session THE MINES ACT, 1952

Examination for Mine Manager's Certificate of Competency under the Coal Mines Regulations, 1957

FIRSTCLASSMINEMANAGEMENT,LEGISLATION&GENERALSAFETY

Sunday,the24thDecember,2000 FullMarks :100 Time :3HourAnswer any six questions

(Question No.1 carries 20 mark and all other carries 16 marks) .

Q1. WhataredifferentpowersconferredonInspectorofMinesunderMinesAct1952incase

of(a)immediateandurgentdangersand (b) Noncompliance with provisions of statute which may lead to dangerous workingconditions in courseof time?Underwhat circumstances are suchpowers required tobeexercised?

Q2. Aseam4mthickanddippingat1in12proposedtobeworkedbylongwallcavingDescribethe preparatory work needed and prepare an application seeking permission underRegulation100(A)ofCoalMinesRegulations,1957?.

Q3. For an underground mine working two degree ll gassy seams with two developmentdistricts.Oneconventionaldepillaringdistrictandonelongwallface,prepareanassessmentreportoneffectivenessofventilationsystemkeepinginviewdifferentprovisionsofstatute.

Q4. Aminewithtwoverticalshaft,equippedwithwinding installationshasbeensealedatthesurfaceduetofire.Itisproposedtoreopenthemine.Enumeratedangersapprehendedandprecautions to be taken during reopening. Draw up a suitable scheme of reopening.

Q5. StatebrieflyandcommentontheadequacyofstatutoryprovisionsofCMR1957inrespectof any three of the following: .(a) Opencast workings with use of deep hole blasting heavy earth moving machineries,{b)FullymechanisedhighproductiveBordandPillarworkingsincoalmines..(c) Factorof safety inwinding rope. .(d)Useofbelt conveyor inmines. .

Q6. (a) Name the occupational diseases that have been notified under the Mines Act, 1952(b)Whatarethestatutoryprovisionsonrespirabledustincoalmines.Howdoyouconductdustsurveytoassesshealthhazardsfromrespirabledustinmechanisedundergroundmine.

Q7. Statethestatutoryprovisionsinrespectofanythreeofthefollowing:.(a)Waterdangerplanand rescue tracings. .(b)Personsemployedinmines.Dutiesofpersonsemployedinmines..(c)Duties ofOwner and Agent .(d) Supply of protective equipment and obligation of persons provided so perfectequipment.(e)Emergencyplanandsketchofaccidentsite. .

Q8. (a) Define Intrinsically safe and FLP apparatus and places of their use.(b)Writebrieflythestatutoryprovisionsinrespectofanytwoofthefollowing:.(i) Disconnection of supply under I.E.R. 1956. .(ii) Voltage limits inworkings below ground, .(iii)Precautionsregardingtheuseofportableelectriclightinworkshop.




Sunday,the23thDecember,2001 FullMarks :100 Time :3HoursAnswer any six questions


Q1. Writeshortnotesonthefollowing:

(a) CalibrationofMethanometer(b) Firingofshotsinfireareainopencastmine(c) Pressurebalancingofstoppings(d) Dangersfromsealedofarea.

Q2. The rateof fatalitiesper thousandpersonsemployed incoalmines in Indiahas remainedalmoststeadyduringlastdecade.Howcanitbebroughtdownfurther?.

Q3. Draw up a set of conditions for: .(i) Useof sitemixed slurry .(ii) Firingofshotsintheshaftfrommains.

Q4. Statebrieflytheapplicationoffollowingmanagementtools ina largemine (a) Management information system .(b) Motivation .(c) TimeandMotionStudy.

Q5. Themanagementofalargeopencastminehasentrustedtheworkofremovalofoverburdentoacontractor.Deploymentofcontractorstrucksandworkersforremovalofoverburdenhas led to increaseofaccidents.Discuss the reasons for increase inaccidentsandsuggestpreventive measures. .

Q6. Drawoutaschemeforemergencyplanforalargebelowgroundcoalminehavingdangersofinundationand fire. .

Q7. Asamanagerofabelowgroundminehowwillyouensurethattheplansareaccurateandupto date? .

Q8. WhataretheimprovementsrequiredinrespectofprovisionsoftheCoalMinesRegulationsregardingopencastmining?






Q1. How can you properly harness human resource to make mining safe and efficient? Q2. Drawupconditionsforuseof:.

(a) LHD .(b) Belt Conveyors belowground. . .

Q3. What precautions are required to be taken under the Indian Electricity Rules where gas exists? .

Q4. What are the statutory requirements before abandonment of belowground workings? What are dangers from such workings and how can it be reduced? .

Q5. Writeshortnoteson:.(a) DutiesofManagerinemergency..(b) Respirabledust..(c) Firingofshotsnearsurfacestructures.(d) Accidentpronemines..

Q6. What are the improvements necessary for better and safer use of opencast miningmachinery?

Q7. Drawaschemeofsafeoperatingpracticewithcontinuousminer.Howwouldyouimplementit?

Q8. Amoderatelythickseamatshallowcover isproposedtobeextracted forthe firsttime inthemineby longwallpowered support.Howwould youmake a statutory application forextractionandwhatinformationarerequired?






Q1. Spontaneous heating in advanced stage has been selected in a caving district. How

would you deal with the situation and what are the statutory obligations that should be fulfilled?

Q2. What could be the occupational health problems with increasing mechanisation? What steps should be taken to guard against the same. .

Q3. Design emergency plan of a belowground mine with dangers from fire and inundation. How can you make it effective? .

Q4. Write short notes on the following: (a) Risk management (b) Effectiveness of Safety Committee (c) Cables (d) Training Officers

Q5. How can you make effective use of; (a) Electronics and information technology in mine safety (b) Site mixed slurry explosives with special reference to safety

Q6. Roof fall continues to be the single largest cause of fatal accidents in our coal mines. How would you reduce such accidents? .

Q7. Under the present scenario comment on adequacy of safety status along with suggested improvements on; . (a) Duties and responsibilities of owner . (b) Statutory records and registers . (c) Duties and responsibilities of manager . (d) Workmens Inspector .

Q8. A large blower has been encountered in a development district of a first degree gassy seam. How will you deal with it and what are the statutory obligations that need to be fulfilled






Q1. Whatdoyouunderstandby the term Flameproofequipment?Draw listof instruction,

responsibility forcomplianceand records that shouldbemaintained toensure that flameprooffeatureremaineffective.

Q2. Alargemechanizedopencastmineisbeingplannedinavirginarea.Brieflystateanddiscuss

thestatutorynoticethataretobesentandpermissions/relaxationtobeobtained.Whatstepshouldbetakentoselect,recruitandtraintheworkman,staffandofficers?

Q3. a)Whatshouldbethesyllabusforpreemploymenttrainingforworkersforanunderground

mine?Whatistheneedforrefreshertraining?b) State the difference in statutory provisions relating to haulage and winding rope?

Q4. Writeshortnoteonthefollowing:a) Statuary provisions relating to working near mine. Boundaries, their rationales andadequacy.b)Functionofcommitteeundersection12ofMineAct.c)Statutoryprovisionrelatingtosupplyanduseofdustrespiration.d)Flyrockinopencastmine,theircausesandprevention

Q5. a)Stateanddiscussstatutoryprovisionrelatingtotakingshelterwhileblasting inopencast

mines.Howwouldyouensureadequateshelterwhenthereareprivatehutmentsandpublicroadwithinthedangerzone?

b)Inanundergroundmine,theOvermanhasreportedprobableexplosioninamechanizeddevelopmentdistrictand16peoplemissing.Drawa listofaction, inorderofpriority thatyouwouldtaketodealwiththeemergencyandrescuerecoverthemissingpersons.

Q6. Whatcouldbetheoccupationalhealthproblemswithincreasingmechanization?Whatstep

shouldbetakentoguardagainstthesame?Q7. Writeshortnoteonfollowing:

a) Riskmanagement.b) Effectivenessofsafetycommittee.c) Statutoryprovisionrelatingtorescuerooms.d) Conditionforuseoftrolleywirelocomotivebelowground.

Q8. Themanagementofalargeopencastminehasentrustedtheworkofremovalofoverburden

to a contractor deployment of contractors trucks andworkers for accidents.Discuss thereasonsforincreaseinaccidentandsuggestpreventivemeasure




Monday,the19thDecember,2005 FullMarks :100 Time :3HoursAnswer any six questions


Q1. Whatare theobjectivesof convening theNationalSafety conference?Briefly statemajor

recommendationmadeby ittilldateandtheir impacton legislationandstatusofsafety inminingindustry?

Q2. Inundationcontinues tobeamajorhazard inbelowgroundworking.AsaManager,Whatactionwouldyoutaketoidentifyandeliminatethishazardfromyourmine?Drawanactionplanforthesame.

Q3. Definethefollowinginthecontextofstatutoryprovision:a) Handheldportableapparatusb) Transportableapparatusc) Portableapparatusd) Voltagee) Flameproofapparatus

f) Ownerg) Seriousbodilyinjuryh) Generalbodyofairi) Ordinarilyemployedj) Personemployedinamine

Q4. a)Whatarethestatuaryprovisionsrelatingtosystematicsupports?Explainthefactorthatyouwilltakeintoaccountwhileformattingsystematicsupportsruleforyourmine.b)WhatdoyouunderstandbythetermRMR?Whatisitapplicationinstratacontrol?

Q5. WhatarethestatuaryprovisionsrelatingtoEmergencyplan?Brieflyexplaintheessential

elementofagoodemergencyplanand their rationale.Howwillyou incorporatemoderntechnology advancement into the emergencyplan for a large collierywithbelow groundworking?

Q6. a) What are the causes of Pneumoconiosis? What are its symptoms? What precaution

shouldbetakentopreventit?b) State statutory provisions relating to periodical medical examination and discuss itsrelevancetoILOclassificationofradiographyfordetectionofPneumoconiosis.

Q7. A large open cast mine is approaching village hutments that cannot be vacated. When

actionswouldyou take to fulfilproduction targetwithdueregard tosafety.Drawadetailplanofactionforthesame.

Q8. a)Inanundergroundcoalminethreepersonsofshotfiringcrewincludingshotfires,several

hoursafterreturninghome,complainofchestpainandbreathingdifficultyandhavetobehospitalized.Oneof themdiesnextday.Whatmaybe thepossiblecauseof theepisode?Howwouldyouenquireit?Discusspossiblecausesandstatutorycontraventions.b)Attheendoftheworkingshift,theassistantmanagerisinformedthatoneundergroundworkerismissing.Whatactionshouldbetaken?




Monday,the17thDecember,2006 FullMarks :100 Time :3HoursAnswer any six questions


1. Therehasbeenconsiderableincreaseinmechanizationofundergroundandopencastmines.

Discuss the adequacy of the provisions of Coal Mines Regulations, 1957 in respect ofqualificationsandappointmentofSafetyOfficers,FirstClassandSecondClassManagersandEngineersinmines.Assumeyourowncondition.

2. (i)Whatismeantbyremoteoperationofcoalfaceapparatuswithpilotcoreprotection?Discusstheassociatedvoltageandcurrentlimits.(ii)Describeatranswitchunitusedbelowground.Whatare(a)Itsspecialfeaturesand(b)Theprotectivedevicesincorporatedinit?

3. (a)Whatarebyelaws?Howaretheyframed?(b)Frameasetofbyelawsforuseofcontinuousminerinadegreelseam.

4. AnexplosionhasoccurredinaDegreeIIImineinadepillaringdistrictwithstowing.Howwill you determine the cause of the explosion and its point of origin? How would youascertainwhethertheexplosionhasoccurredduetoinflammablegasorcoaldustorboth?Assumeyourownconditions.

5. Writeshortnoteson:

(i)Initialandperiodicalmedicalexamination(ii)WorkmensInspectorsandtheirduties.(iii)Medicalattentionincaseofinjury.(iv)Disabilityallowanceandcompensationoccupationaldisease

6. DescribetheprovisionsoftheMinesAct1952inrespectofthefollowing:(i)Dutiesandresponsibilitiesofowners,agentsandmanagers.(ii)Powersofinspectorsofmines.(iii)Annualleavewithwages.

7. Whatarestatutoryprovisionsinrespectof:(i)Precautionsafterafirehavebrokenout.(ii)Dangerfromundergroundinundation,(iii)Splitsandairways.

8. A thick coal seam thatwas developed in two sectionswas being extracted by opencastmining.Therewasactivefireoncoalfaceandashovelwasunderoperationatadistanceof50metresonalowercoalbenchofthesameseam.Suddenly,watergasexplosionoccurredandtheshovelwascoveredbyhotash/dustetc.causinginstantaneousdeathoftheshoveloperator. Write an enquiry report of the accident suggesting out contravention,responsibilities and suggestions to prevent similar accidents in future. Assume you owncondition






Q1. You are the manager of a mine which uses continuous miners and shuttle cars for

extractionofpillarsatadepthofabout400m.Theseamdipsat1in5andhasathicknessof 4.0m. Immediate roof is hard sandstone. .(a)Listwhatyouwouldconsiderthefivemajorrisksinsuchanoperationwhichareneededtobemanaged. .(b) List and describe control measures for the three highest ranked risks.(c)Whowouldyouinvolveintheriskassessmentprocess?

Q2. A6.0mthickcoalseamwasbeingextractedbyopencastmethoddeployingHEMMs.The

overburdenconsistedofa25mthickcoverofsoftsoilfollowedbyshaleandsandstone.Asuddenfailureofbenchesforlengthofabout400mandpartofadumplyingneartheedgeof the query occurred buying two shovels and four dumpers resulting in death of sixoperators and an overman. Write an enquiry report of the accident bringing outcontraventions, responsibilities and suggestion to prevent similar accidents in future.Assume your own conditions. .

Q3. In the present day context of heavymechanization and outsourcing, give you views onadequacyoftheprovisionsofMinesVocationalTrainingRules.Suggestimprovementsandstepstobetakentomakevocationaltrainingeffective. .

Q4. Design and emergency plan of a belowground mine with dangers from spontaneousHeatingandinflammablegas.Howcanyoumakeiteffective?.

Q5. Describedifferenttypeofmanridingsystemsavailableandtheirlimitations.Discusssafetyprovisions of each system. .

Q6. What are notified diseases? Which of other diseases you would like to be included innotified diseases. Discuss the system of Occupational Health Surveillance in yourorganization,itsshortcomingandsuggestimprovement..

Q7. Discussthefollowing:(i)InformationTechnologyinminesafety.(ii)Developmentofcommunicationsystemsinmines.(iii)Useofsitemixedslurryexplosiveswithspecialreferencetosafety,(iv)Electronicdetonators.

Q8. WritedetailednoteonthefollowingasperIER,1956.a.Overheadlinesinopencastminesb.PrecautionstobetakeninuseofelectricityindegreeIIIgassymines.




Sunday,the14th December,2008 FullMarks :100 Time :3HoursAnswer any six questions


Q1. Inthepresentdaycontextoflargedemandofcoal,whataretherecommendationsof10thConferenceforsafetyinmines with respect to :

(a)Mechanizationwithaviewtophaseoutmanual loading& toimprovestandards. (b)Reductionof risk from roof and side falls in coal mine.Q2. Whatarethevarious problemsofsafety whenapartofthework inanopencast

mine is outsourced? How will you ensure enforcement of Mines Act, Rules andRegulations bytheworkersofthehiredcontractor?

Q3. What isworkersparticipation insafetymanagement?Howcan thishelpattainhighsafety

standards?Suggestsomedeterrents forhabitualunsafeworkers.Q4. Enumeratevarioustypesofinstruments(alongwiththeobjective,principleandfunctioning

ofeach)whichareusedformonitoringgroundmovementinadeepundergroundmine.Q5. EnumeratetheprovisionsofMinesRescueRules,1985regardinganytwoofthefollowing: (a) Establishment andlocationof rescue stations.

(b) Appointmentofrescuetrainedpersonsinmines,theirdispositionandaccommodation.

(c) Apparatus and equipment to be provided i n a belowgroundmine wherenorescueroomis located.

Q6. Writeshortnotesonanyfourofthefollowing:

(a) Angleofdrawandits relevance inlongwallmining.(b) Riskassessmentasatooltoimprovesafety.

(c) Vocationaltrainingasaneffectivetool in improvingsafety&productivity. (d) Role of Internalsafetyorganisation in reducingaccidents. (c) Direct&indirectcostsofaccidents. (f) Useof diesellocomotives.Q7. Whatarethe provisionsof Electricity Ruleswithrespectto (a) Portable& transportableapparatus. (b) Switchgears. (c) Appointment anddutieso f electrical supervisors.Q8. Spontaneousheatinginadvanced stagehas beendetectedina cavingdistrict. I. Howcould youdealwiththesituation, and II. Whatare the statutoryobligations that shouldbefulfilled?






Q1. Write Shortnotesonanyfourofthefollowing:

i. Sitemixedslurryascomparedtootherexplosives.ii. Flameproofapparatus.iii. Corporatesocialresponsibility.iv. Riskmanagementasatooltoreduceaccidents.v. MethodstomakePitSafetyCommittee,more effective.vi. Behaviourbasedsafety.

Q2. An explosion has been reported in amechanized development districtwith five persons

missing.Drawalistofaction,inorderofprioritythatyouwouldtaketodealwiththeemergencyandrescue/recoveroperations.

Q3. In thepresentdaycontextofheavymechanizationandoutsourcing,drawupa schemeof

training and retraining to ensure effective safety awareness amongst the workers at themine.

Q4. Whatarethestatutoryprovisionsrelatingtoemergencyplan?Brieflydescribetheessentialelementsof an effective emergencyplan and their rationale.Howwould you incorporatemoderntechnologyadvancementintoanemergencyplan?

Q5. Enumeratevarious sourcesof conflict inaminingproject.As manager of a mine how

would you organizeto dealwith aconflict arisingout ofacomplaintof neighbouringvillagersregardinggroundvibrationsbeinggeneratedbytheblastingbeingconductedatyourmine.

Q6. Whatdoyouunderstandbypaybackperiodofaproject?Describe indetailsanyone cost

analysisandcostcontrolmethodsusedtooperateamine. Q7. An8MTperannumopencastmine isbeingplanned inavirginarea.Drawupaschemefor

selection training and development of human resources for the project. Also state thestatutorynoticestobesentandthepermission/relaxationtobeobtained.

Q8. (a) What are the causes of Pneumoconiosis? What are its symptoms? Enumerate the

precautionstobetakentopreventit. (b) State statutory provisions relating to periodicalmedical examinations and discuss its

relevancetoILOclassificationofradiographsfordetectionofpneumoconiosis.






Q1.(a) Elaboratetheterms"fixedcost,variablecostandmarginalcost"inrespectofacoal

mineforitsfinancialviabilities.Assumeyourownconditions.(b) Whatistheeconomicimpactofmining?Defineinyourowntermsandenumerate"

corporatesocialresponsibilities".Q2. Answeranytwo:

(a) CompositionofSafetyCommitteeandfunctionsofSafetyCommittee.(b) Withdrawalofsupportsandstandingorders(c) Costofaccidents,frequenciesandseverityrate.

Q3. AnintensivelyBord&Pillardevelopedmineisplanningtoincreaseproductionfrom2000to

5000 tonnesperdayby introducinghighlyproductivemachinery.Listout thepreparatoryworktobeundertakentillthetargetedproductionisachieved.Describethesafeoperatingprocedureforoneofthemachineryusedforproduction.

Q4. Writeshortnotesonanytwo:

(a) Specialtrainingtofrontlinesupervisorswithreferenceto10thsafetyConference.(b) Riskmanagement.(c) Goafedgesupportinmechanizeddepillaring.

Q5. Anumberof incidences/accidents areoccurringdue tohard landingof ages. Listout the

maincausesandthestatutoryprovisioninmainwindinginshafts.Q6. Define arduous travel with to underground mechanize mine. What are the statutory

requirementsbeforecommissioningofmanridingsysteminyourmine?Enumeratehowtoensuresafetyofthepersonstravelingbelowgroundinonesuchsystem.

Q7. Writeshortnotesonanytwo:

(a) Occupationalhealthsurveyanditsimportance.(b) Objective of Bipartite&Tripartitemeetings.How far it is useful in increasing the

statusofsafetyofmine.(c) Emergencyresponseprocedureforentrappedundergroundworkers.

Q8. Inpresentdaycontextofheavymechanizationandoutsourcinginmineshowasamanager

ofamineyoupreventemploymentofpersonsbeloweighteen yearsofage.What is laiddownundertheprovisionsoftheMinesAct1952,Regulations,RulesandOrdersmadethereunderincludingpenalties?




Sunday,the11thDecember,2011 FullMarks :100 Time :3HourAnswer any six questions


Q1. Explaininbriefanyfourofthefollowing:

(a)Roleofergonomicsindesignofoperators'cabin.(b) Threattoenvironmentfromundergroundminingandeffectivecontrolmeasure.(c)ABCanalysisanditsroleinreducinginventorycost.(d) Recruitmentpolicyofalargeminingcompany.(e)Costofaccident.

Q2. Whatdoyouunderstandbythetermproductivity?Beingmanagerofa largeundergroundmechanized mine how do you identify and analyse reasons for poor productivity andsuggestwaysandmeansforitsimprovement.

Q3. Afirstdegreegassycoalseam3mthickdipping 1in12isstandingonpillarsof26mx26m

atanaveragedepthof90mwith4.8mx3.0mgalleryfor lastsevenyears. It isproposedtodepillar the same using continuous miner& diesel powered tyremountedcoalhaulerbywidening the galleries up to6.5 m.Draw a suitable systematic support rules for thedistrict.Assumeyourowncondition.

Q4. Explain the tern notified diseases and list out the same discuss in brief statutoryprovisionsforoccupationalhealthsurveillance.

Q5. (a)StatethestepsyouproposetotaketopreventincidencesoffireinHEMM.

(b)StatetheprovisionsoftheMinesRescueRules,1985regarding(i)Freshairbase(ii)DutiesandresponsibilitiesofRescueSuperintendent.

Q6. Statethestatutoryprovisionsregardingprecautionsagainstdust.Q7. A conveyor operator of a mechanized underground mine met with a fatal accident

belowground.BeingSafetyOfficerprepareanaccidentenquiry reportandsuggeststepstopreventrecurrenceofsuchaccident.Assumeyourownconditions.

Q8. Writeshortnoteson

(a)Lifeofwindingrope.(b)Workingnearmineboundaries.(c)Useofflameorelectricweldingbelowground.(d)Useoftwoormoreauxiliaryfanbelowground.



FIRST CLASS MINE MANAGEMENT, LEGISLATION & GENERAL SAFETY

Sunday, the 9th December, 2012 Full Marks : 100 Time : 3 Hour

Answer any six questions (Question No.1 carries 20 mark and all other carries 16 marks)

. Q1. There is an increasi.ng trend in accident involving operators of transport vehicle

throughout sourced agencies. Being manager of a large opencast mine, prepare a report systematically analysing the same and Suggest measures to arrest the trend and reverse it.

Q2. In the recent past there has been case of waste dump failure. How do you propose to

design such dumps for long term stability? What are the equipment available for monitoring dump stability and how impending failures could be predicted?

.Q3. State the statutory provisions in respect of (a) Functions and powers of Committee constituted under Section 12 of the mines

Act, 1952. (b) Powers of Inspector to prohibit employment in certain case.

(c) Power of Govt. to appoint court of inquiry in case of accidents. Q4. Write note on

(a) Restricted neutral power supply system and its advantage (b) Training and retraining of mine workers (c) Tripartite forum and its contribution in improving health and safety of mine

workers.

Q 5 . (a) What are the precautions to be taken in use of electricity in degree III gassy mine. (b) What are the provisions made in Central Electricity Authority (Measures relating to

safety and electric supply) Regulation 2010 about supervisors. Q6. What are the harmful effects of dust in mine workings and how does it affect health

and working efficiency of mine workers. Being manager of a large underground coal mine how do you propose to maintain dustiness of working within permissible l imits? What are the instruments available for monitoring purpose? State the working principle of any one of them.

Q7. Write short notes on any three of the following:-

(a) Role of front line supervisors in motivating mine workers towards observing safety at work place.

(b) Safety features of belt installations (c) Fire in diesel equipment (d) Subsidence management

Q8. Two first degree gassy coal seams 1.2m & 1.0m thick dipping 1 in 30 separated by a sand stone parting of 20m is proposed to be extracted in descending order by high wall mining method by cutting a trench up to floor of lower seam at a depth of 80m. How do you propose to prepare the trench for safe operation of high wall equipments? Prepare a safe code of practice for such method of extraction.



FIRST CLASS MINE MANAGEMENT, LEGISLATION & GENERAL SAFETY

Sunday, the 15th December, 2013 Full Marks : 100 Time : 3 Hour

Answer any six questions (Question No.1 carries 20 mark and all other carries 16 marks)

. Q1. In the recent past, opening of a new coal mine is becoming difficult. What are the

impediments? Give your suggestions to improve upon the present system to fulfil the future need of coal giving proper justification.

Q2. Write short notes on:

a. Fault tree analysis, b. Payback period and internal rate of return, c. Behaviour based safety management.

Q3. A 4.2 m thick coal seam is being depillared with SDLs for the first time in a bard and pillar panel at a shallow depth of about 50 m with pillar size of 26 m x 26 m centre to centre and gallery width of 4.2 m. The panel consists of 36 pillars and the incubation period was six months. The average production from the panel was 150 T per shift. After about 5 1/2 months, blazing fire was noticed in the panel by a Mining Sirdar in night shift on a holiday and thick smoke was also coming out through the evasee of main mechanical ventilator. (a) On receiving information about fire, as manager of the mine, what immediate action will

you take? (b) What steps will you take to deal with the fire? (c) What are your plans to isolate the fire? (d) What were the probable reasons for the fire? (e) What are the remedial measures you suggest to prevent re-occurrence of fire in such

panels?

Q4. A coal seam, 3 m thick dipping at 1 in 7 towards S 2315' E was being developed by bard and pillar method at a depth of 250 m deploying LHDs directly loading on to belts. Pillars were 45 m x 45 m centre to centre developed along strike and dip, with galleries of 4.8 mx 3.0 m cross section. The immediate roof is shaley sand stone having adjusted RMR as 32. Full column resin grouted roof bolts of 1.8 m in length were being used to support the roof as per the designed SSR, keeping factor of safety as 2. Deteriorations in roof were noticed e.g., crushing, bulging, deformation, etc., in bearing plate and also slipping of nuts of roof bolt even after 5 m of progress in development gallery. After a scientific investigation it was found that direction of horizontal stress was S 4325' E and is 1.86 times higher than vertical stress. Suggest methods to improve the roof condition to continue development of the seam in safe manner.

Q5. What is technical and biological reclamation? What is the root causes of air- pollution due to

dust in an opencast mine? What precautions are to be taken to contain the air- pollution? Q6. What is Safety Management Plan? How will you prepare a safety management plan for a

big underground mine to mitigate dangers from accidents due to ground movement? Critically analyse each element, prepare an organization chart and Standard Operating Procedure to manage the above risk.

Q7. What preparatory and precautionary measures need to be taken prior to introduction of

diesel operated equipment in underground coal mines in India? List the key parameters to be monitored during operation of diesel equipment

. Q8. In order to augment coal product on in the country, it is necessary to introduce large-scale

mechanization. How will you assess the training needs for mine workers to meet this challenge? Discuss adequacy of present statute in this regard.

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