NIULPE Class 1 study plan

Sketch from memory the four main boiler configurations (fire-tube, water-tube, waste-heat, and packaged D-type) and label the pressure and capacity ranges where each is typically applied.

Build a material-selection table matching carbon steel, low-alloy steel, and austenitic stainless to their temperature and corrosion limits, citing ASME Section II allowable stress reasoning.

Explain how tube wall thickness, ligament efficiency, and staybolt spacing are determined for a cylindrical shell under internal pressure, working two numeric examples without notes.

List the required boiler fittings (safety valve, water column, gauge glass, low-water cutoff, pressure controls) and state the code basis for each.

Trace the combustion air and fuel path from forced-draft fan to stack, identifying where excess air, O2 trim, and flue-gas recirculation are introduced.

Compute stoichiometric air requirements and excess air from flue-gas O2 readings for natural gas and No. 6 oil, working three practice problems.

Describe the startup, purge, light-off, and shutdown sequences for a burner management system, and state the purpose of each interlock.

Diagnose five common combustion faults (high CO, unstable flame, puffback, low O2, high stack temperature) and write the corrective action for each.

Diagram a complete feedwater train from deaerator through feed pump, economizer, and boiler, labeling each component's function and typical operating conditions.

Size and select feed pumps and piping by working head, NPSH, and velocity-limit calculations for two sample systems.

Explain the chemistry of scale, carryover, and caustic embrittlement, and match each to its control method (softening, demineralization, blowdown, oxygen scavenging, amine feed).

Write out a daily and weekly water-testing schedule with target limits for pH, conductivity, silica, and dissolved oxygen.

Sketch the Rankine cycle with reheat and regeneration, and calculate thermal efficiency for two operating cases using steam tables.

Identify turbine stage, rotor, diaphragm, and gland-seal components and explain how differential expansion and thrust are managed.

Work problems on heat transfer by conduction, convection, and radiation, and apply the log-mean temperature difference to a feedwater heater.

Diagnose four turbine operating abnormalities (high vibration, low vacuum, water induction, overspeed trip) and state the immediate operator response.

Explain the function and failure modes of the boiler control loop elements: transmitters, controllers, positioners, and final control elements, and describe a typical three-element drum level control scheme.

Trace a motor starter circuit from breaker through contactor and overload, and explain how a variable-frequency drive affects pump and fan power.

Interpret a loop diagram and a P&ID excerpt, identifying instrument tags, interlocks, and fail-safe positions.

Describe calibration and trip-testing procedures for pressure, level, and flame-safety devices, including documentation requirements.

Locate and summarize the key requirements of the ASME Boiler and Pressure Vessel Code and the NBIC for inspection, stamping, and repair, without relying on notes.

Explain jurisdictional inspection intervals, certificate of inspection requirements, and the responsibilities of the chief engineer and authorized inspector.

Describe the elements of a plant lockout/tagout, confined-space, and hot-work program as they apply to boiler and pressure-vessel work.

Outline the required response to a low-water condition, safety-valve failure, and fuel-system leak, including reporting obligations.

Build a staffing and shift-coverage plan for a boiler plant, including qualification, training, and succession requirements for licensed operators.

Write a preventive-maintenance schedule for major auxiliaries and a spare-parts criticality list.

Explain the formation and control of NOx, SO2, and particulate emissions, and describe the operating tradeoffs of low-NOx burners, SCR, and baghouse or electrostatic precipitator control.

Describe continuous emission monitoring requirements, recordkeeping, and how to respond to an exceedance.

Complete two full-length timed practice exams under exam conditions and score each by domain.

Re-study the two weakest domains identified by the practice scores and rework every missed question.

Recite from memory the key formulas for combustion air, boiler efficiency, Rankine efficiency, and heat transfer.

Review the code, safety, and chemistry cheat sheets and confirm retention with a rapid self-quiz.