Section 39 in The Orissa Boiler Operation Engineers' Rules, 2000
39. Subject for examination.
(1)In addition to the subjects specified for examination of 2nd Class Certificates of Proficiency under these rules, the examiners for 1st Class Certificate of Proficiency shall, inter alia, satisfy themselves that the candidate for 1st Class Certificate of Proficiency has sufficient knowledge and practical experience in the following subjects, namely(a)Types of boilers in common use(b)Heat transfer as applicable to Boiler Technology, three modes of heat transfer, conductance and resistance, steady and unsteady state of heat transfer, combination of heat transfer mechanism, heat transfer surface arrangement; parallel flow, counter flow, and cross flow, effect of lanes, tube spacing, tube diameters, effect of oil or scales, insulations and heat loss;(c)Boiler circulation system, natural circulation forced circulation and assisted circulation. Design criteria of circulation system, factors affecting circulation and circulation ratio;(d)Combustion, heat of combustion, ignition, temperature, combustion calculation, excess air losses in combustion system, design of furnaces, P.f. fired dry to bottom furnace, slag type furnace and oil fired boiler furnace, fuel firing techniques.;(e)Thermo dynamics of steam, reversible and irreversible process, entropy, carnot cycle, Rankine cycle and regenerative Rankine cycle;(f)Coal processing and handling preparation and utilisation of pulverised coal. Type of pulverises, factors affecting milling plant performance, systems, coal feeders, fire and explosion in mill circuit;(g)General operating features of fuel oil system, trouble shooting of automister/oilguns;(h)Characteristics of different fans-Axial, Impulse, Reaction and Radial and their use for different purposes;(i)Advantage in using Air heaters, Advantages Rangenerative Vs. Recoperative, Trouble shooting with air heaters, Operation and maintenance;(j)Function of electro static precipitators, their principles, operation problem and trouble shooting;(k)Safety valve troubles and their remedies eg. leaking of safety valves, incorrect popping pressure; blow down adjustment, spindle getting bent, hand up, simmer and buzzing, flutter or slight boundering when closing;(l)Function of soot blowers, types and their purposes, long, retractable soot blower, Half retraceable soot blower wall deslagger, Rotary blowers, pre-commissioning and post-commissioning requirements, superheaters, desuperheaters, reheaters and economiser, H.P., bipass system;(m)Feed water treatment, boiler water treatment, silico control, chemical cleaning and stand by protection of high pressure boilers, priming and foaming of boilers, carry over in steam and the corrective measures adopted, chemical dosing procedures and effect;(n)Operation and testing of instruments and controls in boiler plants. Feed water control, combustion control, pulverized fuel firing and milling plant, control systems, furnace draught control, steam temperature control, Utility of data logging, problem reporting and trouble shooting;(o)Efficiency test of boilers and calculation of various heat lesses;(p)Emergency operation of boilers and the minimum precautions to be taken before resorting to such operation;(q)Sub-critical and super critical boilers, once through boilers, fluidised bed boilers;(r)Materials used in boiler components and its pipings; and(s)Welding techniques and weld defects :-(2)The examiner for 2nd Class Certificate of proficiency shall, inter alia, satisfy himself that the candidate has sufficient knowledge and practical experience in the following subjects, namely :-(a)Unit of force, work, power energy and their relationship in S.I. Units;(b)familiarity with the provisions of the Indian Boiler Regulations including calculations of dead weight safety valve, the weight and position of bail on a lever and weight safety valve;(c)combustion, heat transmission, excess air, heat loss, circulation system in a boiler; properties of stem including ability to read steam tables and mollier diagram;(d)Principal types of steam boilers used on land with special emphasis to industrial boilers, purposes and reasons for which different types of boilers are employed.(e)Functions of boiler mountings, feed heaters, economisers, reheaters super heater forced, induced and secondary draught appliances, stokers, qurners, temperatures, dampers, other auxiliaries;(f)Operation of shell type boilers and water tube boilers with coal, oil, gas firing system with special reference to industrial boilers;(g)Feed water treatment and boiler water conditioning, Deseration, corrosion, P.H., TDS etc.,(h)Functions of measurement and controls in boiler plants and also the data logging on the operation of boilers, automatic control; and(i)methods of hydraulic test and procedures.(3)The examiner for restricted certificate of proficiency shall, inter alia satisfy themselves that the candidate has sufficient knowledge and practical experience in operation and maintenance of waste heat boilers which are in integral part of a process plant of continuous flow installation.(4)If required by the examiners and to the extent deemed necessary a candidate, shall demonstrate either in a power station or in any industrial unit his ability in the operation of boilers.
