SMU-MINING MACHINERY EXAM SYLLABUS

29-04-2021
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SYLLABUS FOR EXAMINATION FOR SECOND CLASS MANAGER’S CERTIFICATE OF COMPETENCY
(Under Metalliferous Mines Regulations, 1961)
MINING MACHINERY

Strength of materials; applied mechanics; fluid mechanics.

Theory of Machines :- Machine design, different types of gears and drives, bearing, collars and joints, brakes and friction clutches, governors.

Heat engines, general outline of working principles of steam generators and auxiliary equipment, condensing plant, reciprocating steam engines, turbines, internal combustion engines, conduct of gas, oil and steam engine trial; mechanical efficiency of engines, measurement of indicated and brake horsepower.

Machine tools and workshop processes:-
Wire ropes :- Construction details, applications, mechanical properties, breaking load, factor of safety bending factor, capacity factor, snap length, critical depth inspection; examination and discarding criteria; rope capping and splicing.

Mine winders :- Types and applications components; shaft fitting; drums and sheaves; ropes and guides; drives and control systems; automatic contrivances; brakes; cage; skip; counter weight and suspension arrangement; duty cycle diagram; winder capacity and motor power calculations; equivalent mass of winder installation; safety devices; Installation; examination and testing of winding equipment.

Underground machinery :- Pneumatic and hydraulic drilling hammers, jumbo drills, Roof bolters, quadro bolters, road headers, raise climbers; tunnel, raise and shaft borers, LHDs, LPDTs, booster compressors, DTH and ITH drilling machines.

Material handling equipment in mines; Types, construction and operation; safety devices; maintenance and calculations for rope haulages; locomotives (tractive effort, draw bar pull, ideal gradient), conveyors (belt conveyor, chain conveyor, cable belt conveyor, high angle conveyor, shiftable belt conveyor, pipe conveyor); aerial rope-ways, man riding systems; in-pit crushers, feeder breaker etc., mine cars, track super elevation; track fitting and safety appliances; self acting inclines; ore handling plants; rail wagon loading plants; use of diesel equipments in underground mines.

Pumps :- Characteristics, motor power, capacity and calculations, laying of water mains, dealing with acid water; slurry, drainage; lodgements, storage, designs and layout of dams, sumps, pumping problems.

Opencast machinery :- Constructions, function and operation of blast hole drills, rippers, scrapers, shovels; draglines, dumpers, road graders, dozers, wheel loaders; bucket wheel excavators; spreaders; surface continuous miners and their maintenance aspects.

Mine electrical engineering :- Transmission and distribution of electrical power in mines; radial and ring main distribution; sub-station arrangements; short transmission lines; cables; switch gears and protective devices; protective relays; circuit breakers; gate-end box; drill panel; field switch; transwitch; symmetrical fault and circuit breaker rating; mine signaling; power factor improvement; electrical drives and semiconductor controllers; selection of motors and starters; semiconductor devices; principles of operation of thyristor controlled variable speed electrical drives; electrical breaking; earthing; flameproof enclosures; use of high voltage operational equipment in mines.

Generation, transmission and utilization of power, steam, electricity and compressed air in mines; safety aspects.

Automation in mines :- Armchair mining (tele-operations of mining equipments)

Preventive, periodical and total maintenance systems in mines.