Kerala PSC KWA Operator Syllabus 2026 & Exam Pattern PDF – Marks, PYQs & Details

Kerala PSC Kerala Water Authority Operator Recruitment notification invites online applications through One Time Registration from eligible candidates for the post of Operator in Kerala Water Authority. The ranked list will remain valid for one to three years, based on PSC rules, and appointments will be made against anticipated vacancies. Explore the detailed syllabus, exam pattern, and previous year question papers (PYQs) below!

KWA Operator Syllabus 2026 PDF Download

As the exam date has been confirmed, it is time to start your preparation seriously. The first step in exam preparation is accessing the KWA Operator syllabus 2026. Understanding which topics are included, the mark distribution, and the exam pattern is mandatory for effective study planning. To prepare strategically for the KWA Operator examination, candidates must go through the complete syllabus in detail. Click the link below to download the syllabus.

KWA Operator 2026 PYQs – Download Previous Question Papers PDF

Kerala PSC KWA Operator Notification 2026 Details

KWA Operator Exam Pattern 2026 – Topics &  Marks

The KWA Operator Examination is conducted for a total of 100 marks with 100 multiple-choice questions, where each correct answer carries 1 mark and a negative marking of 1/3 mark is applied for every wrong answer. The duration of the exam is 1 hour and 30 minutes, and the question paper is set in Medium English.

KWA Operator Detailed Syllabus 2026 – Subjects

The KWA Operator syllabus 2026 covers essential topics from Electrical, Mechanical, and Electronics engineering, including machines, power systems, pumps, engines, and fluid mechanics. Candidates should note that questions may also be asked from other subjects prescribed for the educational qualification, and there is no assurance that all listed topics will appear in the question paper. Hence, thorough preparation of the complete syllabus is crucial to score well in the KWA Operator exam.

Module I- Fundamentals of Electricity (15 Marks)

Basic electricity, Electricity principles, Ground connections, Ohm’s law, Voltage, Current, Resistance, Power, Energy. Voltmeter, ammeter, Ohm meter Mulitmeter, Conductors & insulators, Wires, Shielding, Length vs. resistance, Resistor ratings. Fuses & circuit breakers, Ballast resistor, Stripping wire insulation, cable colour codes and sizes, Resistors in Series circuits , Parallel circuits and Series- parallel circuits, Electrostatic effects, Capacitors and its applications, Capacitors in series and parallel.

Batteries & cells, Lead acid batteries & Stay Maintenance Free (SMF) batteries, Magnetic effects, Heating effects, Thermo- electric energy, Thermisters, Thermo couples, Electrochemical energy, Photo-voltaic energy, Piezo-electric energy, Electromagnetic induction, Relays, Solenoids, Primary & Secondary windings, Transformers, stator and rotor coils.. Kirchhoff’s laws – KCL and KVL.

Module II – Electrostatics and Electromagnetism (5 Marks)

Laws of Electrostatics, Permittivity, Electric Flux, Flux Density, Potential, Potential Difference – equations  and simple problems, Lightning Phenomenon, Potential Gradient, Dielectrical Strength, Capacitors in series and parallel, Energy stored in a Capacitor, Coulomb’s law, Permeability, Magnetic Flux, Flux density, Reluctance, mmf, Faraday’s law of Electromagnetic Induction, Lenz’s Law. Self Inductance, Mutual Inductance, Energy stored in an inductor, Fleming’s Laws

Module III – Fundamentals of AC Systems (5 Marks)

Generation of ac voltage, Equation of voltage, Basic terms – amplitude, frequency, cycle, time period, average value, instantaneous value, rms value, form factor, peak factor – equations and related simple problems, ac through resistance, inductance and capacitance, star and delta connections in 3 phase ac systems – line and phase relationship in star and delta systems.

Module IV – Measurements and measuring instruments (5 Marks)

Various types of electrical measuring instruments – Voltmeter, Ammeter, Energy Meter, Wattmeter, Single phase and Three phase power measurement, measurement of resistance, Inductance and Capacitance, Power factor meter, Synchroscope, TOD meter, CRO, Insulation megger and earth megger, multimeter, CT and PT.

Module V – Safety, First Aid, Batteries and Solar Cell (5 Marks)

Basic safety requirements, electric shock-requirement for avoiding shock, first aid, installation, care and maintenance of batteries and solar cells, determination of total number of cells required for a given power requirements.

Module VI – Wiring Accessories (5 Marks)

Various wiring systems, Wires-single strand and multistrand, current ratings. Fuses-cartridge and HRC. Switches – SPST, SPDT, TPTT, ICDP, ICTP, Toggle switch, Limit switch, safety devices- MCB, ELCB, RCCB, electrical illumination, Earthing – Pipe and Plate earthing.

Module VII- DC Machines (5 Marks)

DC generator – construction, working, classification, emf equation, wave and lap windings, characteristics, simple problems DC motor – construction, working, types, emf equation, torque-simple problems, various starters, speed control, testing, MG set.

Module VIII- AC Machines (5 Marks)

Transformer-construction, principle, types, emf equation, transformation ratio, losses and efficiency, all day efficiency-simple problems Three phase induction motor-principle, construction, types, slip, torque, losses, efficiency, power stages, speed control, three phase motor starters Alternators-construction, principle, emf equation, losses and efficiency, Three phase synchronous motor.Single phase and FHP motors-single phase induction motor, universal motor, ac series motor, servomotor, stepper motor, split phase motor

Module IX- Digital Electronics (5 Marks)

Number systems, logic gates-AND, OR, NOT, NAND, NOR, De-morgan’s theorems, half adder, full adder, flip-flops, shift registers, counters, ADC, DAC, soldering Techniques

Module X – Power Electronics (5 Marks)

Half wave and full wave rectifiers with and without filters, UJT relaxations oscillator, FET, JFET, Triac, Diac, IGBT, SCR, operation and maintenance of inverter, regulated DC power supply, battery charger, UPS.

Module- XI (Pump a n d Fastenings) (10 marks)

Pump Industry in India – leading manufacturers, development in Pump Industry, trends, new product. Principle of centrifugal pump. Construction and operation of centrifugal pump in series and parallel. Finding defects and method to recondition centrifugal pump Submersible pumpconstruction, operation and selection of appropriate type. Procedure to recondition, install and test of submersible pumps. Causes of failures and remedial measures. Priming of pump sets.

Fasteners- Types of screws, nuts, studs & bolts, locking devices, – lock nuts, cotter, split pins, keys, circlips, lock rings, locks washers and locating where they are used. Washers & chemical compounds can be used to help secure these fasteners. Function of Gaskets, Selection of materials for gaskets and packing, oil seals.

Sheet metal – the various common metal Sheets used in Metal shop Sheet metal operations – Shearing, bending, Drawing, Squeezing.

Sheet metal joints – Hem & Seam Joints Fastening Methods – Riveting, soldering, Brazing. Fluxes used on common joints. Sheet and wire-gauges. The blow lamp-its uses and pipe fittings.

Module-XII (I.C Engines) (10 marks)

Principle of Compression-ignition engine, Spark Ignition Engine, differentiates between 4- stroke and 2 stroke, C.I engine and S.I Engine, Otto cycle and Diesel cycle. Different type of starting and stopping method of Diesel Engine. Technical terms used in engine, Engine specification. Cleaning- fuel tank & check leak in the fuel line. Lubrication system – types, description and advantages of each over others. Filters and oil coolers– their description functions and method to overhaul for efficient functioning. Defects in pump sets- procedure for
detection of causes & rectification. Purpose and balancing of rotor. Procedure to be followed for
preventive & scheduled maintenance, planning for spares and other stores. Method of install
align and testing of pumps for their serviceability. Concept of tightening torque for different
sizes of bolts.

Module- XIII (Power trasmissios) (10 marks)

Types of pulleys solid, split, “V” groove, step, cone, taper, guided and jockey or rider pulleys, their functions and uses. Procedure to assemble and dismantle pulleys and impellers from shafts following safety precautions. AC Motors – related terminology. Purpose, type, construction, operation, testing for correct functioning, maintenance and industrial applications. Trouble shooting & protection of induction motor. Different types of valves-their description, advantages & use. Special pumps & glands used for corrosive fluids. Different gasket cement used to prevent leakage and advantages of each over the other. Principle of direct reading pressure and temperature measuring instruments. Method to read and application of pressure and temperature Measuring instruments. Starters and types of starter switches. Circuit Breakers and Isolators.

Module- XIV .(Fluid valves) (10 marks)

Application of Gear pump- Internal & External, single acting, double acting & Double ended cylinder; Directional control valves-2/2, 3/2, 4/2, 4/3 way valve, Pressure relief valve, Non return valve, Flow control valve used Pneumatic Symbols, and function of air Reciprocating Compressor. Function of Air service unit (FRL-Filter, Regulator & Lubricator) Classification of rotary pumps- Construction and operation- repairing procedure. Brief description of turbine & stage pumps, positive displacements and their advantages. Meaning of priming and its effect. Installation Techniques of rotary pump- procedure, tools and equipment required. Pipes and pipe fittings. Pipe Joints. Pipe Gauging.

How to Download KWA Operator Syllabus 2026 PDF

• Visit the Kerala PSC official website
• Click on Downloads
• Select Syllabus / Previous Year Question Papers (PYQs)
• Search for KWA Operator
• Click the Download button
• Open the PDF and save it to your device