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# NTPC Exam Syllabus: Electrical, Mechanical, Civil, Instrumentation, HR, Finance

Last updated: December 28, 2011 by

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Please read the indicative syllabus for NTPC Exams for various disciplines. National Thermal Power Corporation conducts various recruitment exams and this syllabus will help you base your studies on selective topics.

This syllabus will let you know about the topics to be covered for Engineering, Management and Finance related jobs at NTPC. If you go through previous papers for NTPC you will find that the questions broadly revolve around the prescribed syllabus. Its better that you stick to these when you start preparing and then focus on other material for extra details.

We wish you luck for your exams.

### Discipline: ELECTRICAL ENGINEERING

Electric Circuits and Fields:

Network graph, KCL, KVL, node and mesh analysis, transient response of dc and ac networks; sinusoidal steady-state analysis, resonance, basic filter concepts; ideal current and voltage sources, Thevenin's, Norton's and Superposition and Maximum Power Transfer theorems, two-port networks, three phase circuits; Gauss Theorem, electric field and potential due to point, line, plane and spherical charge distributions; Ampere's and Biot-Savart's laws; inductance; dielectrics; capacitance.

Signals and Systems:

Representation of continuous and discrete-time signals; shifting and scaling operations; linear, time-invariant and causal systems; Fourier series representation of continuous periodic signals; sampling theorem; Fourier, Laplace and Z transforms.

Electrical Machines:

Single phase transformer - equivalent circuit, phasor diagram, tests, regulation and efficiency; three phase transformers - connections, parallel operation; auto-transformer; energy conversion principles; DC machines - types, windings, generator characteristics, armature reaction and commutation, starting and speed control of motors; three phase induction motors - principles, types, performance characteristics, starting and speed control; single phase induction motors; synchronous machines - performance, regulation and parallel operation of generators, motor starting, characteristics and applications; servo and stepper motors.

Power Systems:

Basic power generation concepts; transmission line models and performance; cable performance, insulation; corona and radio interference; distribution systems; per-unit quantities; bus impedance and admittance matrices; load flow; voltage control; power factor correction; economic operation; symmetrical components; fault analysis; principles of over-current, differential and distance protection; solid state relays and digital protection; circuit breakers; system stability concepts, swing curves and equal area criterion; HVDC transmission and FACTS concepts. Numeric Relays.

Control Systems:

Principles of feedback; transfer function; block diagrams; steady-state errors; Routh and Niquist techniques; Bode plots; root loci; lag, lead and lead-lag compensation; state space model; state transition matrix, controllability and observability.

Electrical and Electronic Measurements:

Bridges and potentiometers; PMMC, moving iron, dynamometer and induction type instruments; measurement of voltage, current, power, energy and power factor; instrument transformers; digital voltmeters and multimeters; phase, time and frequency measurement; Q-meters; oscilloscopes; error analysis.

Analog and Digital Electronics:

Characteristics of diodes, BJT, FET; amplifiers - biasing, equivalent circuit and frequency response; oscillators and feedback amplifiers; operational amplifiers - characteristics and applications; simple active filters; VCOs and timers; combinational and sequential logic circuits; multiplexer; Schmitt trigger; multi-vibrators; sample and hold circuits; A/D and D/A converters; 8-bit / 16-bit microprocessor basics, architecture, programming and interfacing.

Power Electronics and Drives:

Semiconductor power diodes, transistors, thyristors, triacs, GTOs, MOSFETs and IGBTs - static characteristics and principles of operation; triggering circuits; phase control rectifiers; bridge converters - fully controlled and half controlled; principles of choppers and inverters; basis concepts of adjustable speed dc and ac drives. Variable speed control of AC machines.

### Discipline: Mechanical Engineering

Engineering Mechanics:

Free body diagrams and equilibrium; trusses and frames; virtual work; kinematics and dynamics of particles and of rigid bodies in plane motion, including impulse and momentum (linear and angular) and energy formulations; impact.

Engineering Materials:

Structure and properties of engineering materials and their applications, heat treatment, stress-strain diagrams for engineering materials.

Strength of Materials:

Stress and strain, stress-strain relationship and elastic constants, Mohr's circle for plane stress and plane strain, thin cylinders, thick-walled vessels; shear force and bending moment diagrams; bending and shear stresses; deflection of beams; torsion of circular members; columns and struts; strain energy and impact loading; thermal stresses; Rotating Rims & Discs; Bending of Curved Bars.

Theory of Machines:

Displacement, velocity and acceleration analysis of plane mechanisms, kinematic synthesis of mechanisms; dynamic analysis of slider-crank mechanism; gear trains; flywheels; static and dynamic force analysis; balancing of rotating components; governors.

Thermodynamics:

Thermodynamic system and processes; Zeroth, First and Second laws of thermodynamics;; Carnot cycle. irreversibility and availability; behaviour of pure substances, ideal and real gases; calculation of work and heat in ideal and real processes; Rankine and Brayton cycles with modifications, analysis of thermodynamic cycles related to energy conversion; vapour refrigeration cycle, heat pumps, gas refrigeration, reverse Brayton cycle; moist air: psychrometric chart, basic psychrometric processes.

Energy Conversion:

Fuels and combustion; high pressure steam boilers; flow through nozzles; Gas turbines with intercooling, reheat and regenerators, Steam turbines, velocity diagram, power output and efficiency, maximum blade efficiency of single stage impulse turbine, blade friction, compounding of impulse turbine; reaction turbine, degree of reaction, velocity diagram, power output, efficiency; losses in steam turbines, stage efficiency, overall efficiency and reheat factor; governing of steam turbines; steam condensers, condenser vacuum, sources of air leakage & its disadvantages.

Heat-Transfer:

Modes of heat transfer; one dimensional heat conduction, resistance concept, electrical analogy, unsteady heat conduction, fins; dimensionless parameters in free and forced convective heat transfer, various correlations for heat transfer in flow over flat plates and through pipes; thermal boundary layer; effect of turbulence; radiative heat transfer, black and grey surfaces, shape factors, network analysis; heat exchanger performance, LMTD and NTU methods.

Fluid Mechanics:

Fluid properties; fluid statics, manometry, buoyancy; control-volume analysis of mass, momentum and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli's equation; viscous flow of incompressible fluids; boundary layer; elementary turbulent flow; flow through pipes, head losses in pipes, bends etc.

Vibrations:

Free and forced vibration of single degree of freedom systems; effect of damping; harmonically excited and transient vibrations; introduction to multi-degree of freedom systems; vibration isolation; resonance, critical speeds of shafts.

Design:

Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted and welded joints, shafts, spur gears, rolling and sliding contact bearings, keys, couplings, brakes and clutches; Selection of Materials.

Fluid Machines:

Pelton, Francis, propeller and Kaplan turbines; performance characteristics and governing of hydraulic turbines; introduction to Deriaz and Bulb turbines; selection of turbines; Centrifugal & axial pumps and fans, reciprocating pumps.

Joining:

Chemistry of welding, design of welding joints, pre- and post-heat treatment of welded joints; brazing and soldering; adhesive bonding.

Machining and Machine Tool Operations:

Mechanics of metal cutting and chip formation, single and multi-point cutting tools, tool geometry and materials, tool life and wear; principles of non-conventional machining processes; principles of work clamping, principles of design of jigs and fixtures.

Metrology and Inspection:

Limits, fits and tolerances; linear and angular measurements; comparators; gauge design; interferometry; form and finish measurement; alignment and testing methods; tolerance analysis in manufacturing and assembly.

Computer Integrated Manufacturing:

Basic concepts of CAD/CAM and their integration tools. 16. Production Planning and Control: Forecasting models, aggregate production planning, scheduling, materials requirement planning.

Inventory Control:

Deterministic and probabilistic models; safety stock inventory control systems, economic order quantity.

Operations Research:

Linear programming, simplex and duplex method, transportation, assignment, network flow models, simple queuing models, PERT and CPM.

Product Design and Development:

Principles of good product design, tolerance design; quality and cost considerations; product life cycle; standardization, simplification, diversification, value engineering and analysis, concurrent engineering.

Industrial Safety:

Introduction, types of accidents, causes and common sources of accidents, methods of safety, first aid.

Engineering Economy and Costing:

Elementary cost accounting and methods of depreciation; break-even analysis, techniques for evaluation of capital investments, financial statements.

Management Information System:

Value of information; information storage and retrieval system - database and data structures; knowledge based systems.

### Discipline: Civil Engineering

Mechanics:

Bending moment and shear force in statically determinate beams. Simple stress and strain relationship: Stress and strain in two dimensions, principal stresses, stress transformation, Mohr's circle. Simple bending theory, flexural and shear stresses, unsymmetrical bending, shear centre. Thin walled pressure vessels, uniform torsion, buckling of column, combined and direct bending stresses.

Structural Analysis:

Analysis of statically determinate trusses, arches, beams, cables and frames, displacements in statically determinate structures and analysis of statically indeterminate structures by force/ energy methods, analysis by displacement methods (slope deflection and moment distribution methods), influence lines for determinate and indeterminate structures. Basic concepts of matrix methods of structural analysis.

Concrete Structures:

Concrete Technology- properties of concrete, basics of mix design. Concrete design- basic working stress and limit state design concepts, analysis of ultimate load capacity and design of members subjected to flexure, shear, compression and torsion by limit state methods. Basic elements of prestressed concrete, analysis of beam sections at transfer and service loads.

Steel Structures:

Analysis and design of tension and compression members, beams and beam- columns, column bases. Connections- simple and eccentric, beam-column connections, plate girders and trusses. Plastic analysis of beams and frames.

Soil Mechanics:

Origin of soils, soil classification, three - phase system, fundamental definitions, relationship and interrelationships, permeability and seepage, effective stress principle, consolidation, compaction, shear strength.

Foundation Engineering:

Sub-surface investigations- scope, drilling bore holes, sampling, penetration tests, plate load test. Earth pressure theories, effect of water table, layered soils. Stability of slopes- infinite slopes, finite slopes. Foundation types- foundation design requirements. Shallow foundations- bearing capacity, effect of shape, water table and other factors, stress distribution, settlement analysis in sands and clays. Deep foundations -pile types, dynamic and static formulae, load capacity of piles in sands and clays, negative skin friction.

Fluid Mechanics and Hydraulics:

Properties of fluids, principle of conservation of mass, momentum, energy and corresponding equations, potential flow, applications of momentum and Bernoulli's equation, laminar and turbulent flow, flow in pipes, pipe networks. Concept of boundary layer and its growth. Uniform flow, critical flow and gradually varied flow in channels, specific energy concept, hydraulic jump. Forces on immersed bodies, flow measurements in channels, tanks and pipes. Dimensional analysis and hydraulic modeling. Kinematics of flow, velocity triangles and specific speed of pumps and turbines.

Hydrology:

Hydrologic cycle, rainfall, evaporation, infiltration, stage discharge relationships, unit hydrographs, flood estimation, reservoir capacity, reservoir and channel routing. Well hydraulics.

Irrigation:

Duty, delta, estimation of evapo-transpiration. Crop water requirements. Design of: lined and unlined canals, waterways, head works, gravity dams and spillways. Design of weirs on permeable foundation. Types of irrigation system, irrigation methods. Water logging and drainage, sodic soils.

Water requirements:

Quality standards, basic unit processes and operations for water treatment. Drinking water standards, water requirements, basic unit operations and unit processes for surface water treatment, distribution of water. Sewage and sewerage treatment, quantity and characteristics of wastewater. Primary, secondary and tertiary treatment of wastewater, sludge disposal, effluent discharge standards. Domestic wastewater treatment, quantity of characteristics of domestic wastewater, primary and secondary treatment Unit operations and unit processes of domestic wastewater, sludge disposal.

Air Pollution:

Types of pollutants, their sources and impacts, air pollution meteorology, air pollution control, air quality standards and limits.

Municipal Solid Wastes:

Characteristics, generation, collection and transportation of solid wastes, engineered systems for solid waste management (reuse/ recycle, energy recovery, treatment and disposal).

Noise Pollution:

Impacts of noise, permissible limits of noise pollution, measurement of noise and control of noise pollution.

Surveying:

Importance of surveying, principles and classifications, mapping concepts, coordinate system, map projections, measurements of distance and directions, leveling, theodolite traversing, plane table surveying, errors and adjustments, curves.

### Discipline: Control & Instrumentation

Basics of Circuits and Measurement Systems:

Kirchoff's laws, mesh and nodal Analysis. Circuit theorems. One-port and two-port Network Functions. Static and dynamic characteristics of Measurement Systems. Error and uncertainty analysis. Statistical analysis of data and curve fitting.

Transducers, Mechanical Measurement and Industrial Instrumentation:

Resistive, Capacitive, Inductive and piezoelectric transducers and their signal conditioning. Measurement of displacement, velocity and acceleration (translational and rotational), force, vibration and shock. Measurement of pressure, flow, temperature and liquid level. Measurement of pH, conductivity, humidity, hydrazine, silica, dissolved O2. Units and standards of measurement.

Analog Electronics:

Characteristics of diode, BJT, JFET and MOSFET. Diode circuits. Transistors at low and high frequencies, Amplifiers, single and multi-stage. Feedback amplifiers. Operational amplifiers, characteristics and circuit configurations. Instrumentation amplifier. Precision rectifier. V-to-I and I-to-V converter. Op-Amp based active filters. Oscillators and signal generators. Voltage stabiliser and regulator circuits. Inverter and converter circuits.

Digital Electronics:

Combinational logic circuits, minimization of Boolean functions. IC families, TTL, MOS and CMOS. Arithmetic circuits. Comparators, Schmitt trigger, timers and mono-stable multi-vibrator. Sequential circuits, flip-flops, counters, shift registers. Multiplexer, S/H circuit. Analog-to-Digital and Digital-to-Analog converters. Basics of number system. Microprocessor applications, memory and input-output interfacing. Microcontrollers.

Signals and Systems:

Definitions and properties of Laplace transform, continuous-time and discrete-time Fourier series, continuous-time and discrete-time Fourier Transform, DFT and FFT, z-transform. Sampling theorem. Linear Time-Invariant (LTI) Systems: definitions and properties; causality, stability, impulse response, convolution, poles and zeros, parallel and cascade structure, frequency response, group delay, phase delay. Signal transmission through LTI systems.

Communications:

Random signals and noise: probability, random variables, probability density function, autocorrelation, power spectral density. Analog communication systems: amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers; elements of hardware, realizations of analog communication systems; signal-to-noise ratio (SNR) calculations for amplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Fundamentals of information theory and channel capacity theorem. Digital communication systems: pulse code modulation (PCM), differential pulse code modulation (DPCM), digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), matched filter receivers, bandwidth consideration and probability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM. Basic Network topology and Net work hard wares. LAN / WAN configurations. UTP and OFC Links and components. Serial and parallel communication, Shielding and grounding. IEEE standards and broadband.

Electrical and Electronic Measurements:

Bridges and potentiometers, measurement of R,L and C. Measurements of voltage, current, power, power factor and energy. A.C & D.C current probes. Extension of instrument ranges. Q-meter and waveform analyzer. Digital voltmeter and multi-meter. Time, phase and frequency measurements. Cathode ray oscilloscope. Instrument Transformer.

Control Systems and Process Control:

Feedback principles. Signal flow graphs. Transient Response, steady-state-errors. Routh and Nyquist criteria. Bode plot, root loci. Time delay systems. Phase and gain margin. State space representation of systems. Mechanical, hydraulic and pneumatic system components. Synchro pair, servo and step motors. On-off, cascade, P, P-I, P-I-D, feed forward and derivative controller, Fuzzy controllers. Multi-state variable and Adaptative controls. System modeling, Digital controls, Distributed digital controls, control loops based on computers.

Analytical, Optical and Biomedical Instrumentation:

Mass spectrometry. UV, visible and IR spectrometry. X-ray and nuclear radiation measurements. Optical sources and detectors, LED, laser, Photo-diode, photo-resistor and their characteristics. Interferometers, applications in metrology.

### Discipline: Human Resourse

01. Human Resource Management

02. Human Resource Planning

03. Recruitment & Selection

04. Human Resource Development: Strategies and Systems

05. Performance Management & Appraisal

06. Training and Development

07. Management of Compensations and Benefits

08. Rewards & Recognition

09. Organizational Structure Design and Change

10. Management Process and Organizational Behavior

11. Management of Change and Organization Effectiveness

12. Managing Interpersonal and Group Processes

13. Emotional Intelligence and Managerial Effectiveness

14. Transactional Analysis

15. Industrial Relations & Trade Unions

16. Labour Laws

17. Conflict Management

18. Collective Bargaining and Negations process

19. Grievance Management

20. Business Policy and Strategic Analysis

21. Corporate Evolution and Strategic Management

22. Cross Cultural and Global Management

24. Business Ethics, Corporate Governance & Social Responsibility

25. Understanding Society and Social Structure

26. Managerial Economics, Financial Management and Accounting

27. Quantitative Methods & Research Methodology

28. Management Information Systems

29. Human Resource Information System

30. Total Quality Management

### Discipline: Finance

Financial Accounting

* Accounting Standards

* Corporate Accounts

* Indirect & Direct - Tax Management

* Auditing

* Corporate & Industrial Laws

Cost & Management Accounting

* Costing Techniques

* Cost Audit

* Project Planning, Financing, Analysis and Management

* Quantitative Techniques

* Operation & Project Management Control

Financial Management

* Management Science

* International Financial Management

* Risk Management

* Capital Market Analysis

* Financial Derivatives

* Security Analysis and Investment Management

General

* Managerial Economics

* Management Information Systems

* Management Control System

NTPC Part-II:

Executive Aptitude Test

Executive Aptitude Test is common to all disciplines. This part will be consists of 50 objective type questions on:

01. Vocabulary

02. Verbal comprehension

03. Quantitative aptitude

04. Reasoning ability to determine data sufficiency

05. Interpretation of graphs/ charts/ tables

06. Numerical ability etc.

Category: Jobs and Recruitment, Syllabus

1. niraj said:

i want previous year question paper of ntpc

2. niraj balapurkar said:

im appearing first time for NTPC ET exam.

please send me the previous year question paper and paper pattern and please give me name of some popular refair books in MECHANICAL engineering stream..
it will be handfull for my preparation

3. ramu said:

pls send me ntpc previous year paper of mechanical engg.

4. krish said:

the exam is of objective with 170qns of which 120 technical and 50 of applitude

5. pooja singh said:

Hi, im appearing first time for NTPC ET exam.

please send me the previous year question paper for MECHANICAL engineering stream..
it will be handfull for my preparation

6. satyarao said:

sir please put the material for ntpc...

7. Alex said:

hey.....
can i get the question paper of NTPC ?

8. Avinash said:

Sir i m 2008 pas out student plz send me prev year ntpc cont /inst paper also tel the cut off certeria of marks thank u sir

pls send me last year paper of ntpc of civil engg.

10. Rahul Sahare said:

I am mechanical engineer passed-out in 2009 batch, ijust needed last 5 year sample papers for ET-2010 for my self practice.So please send me as soon as possible..........

11. anjali singh said:

pls send me privious year ntpc exam papers and i'm electrical engg.on my id

12. swetha said:

plz send the previous ntpc exam quetion papers as soon as possible to my mail.can u suggest me how to prepare?
thank u

13. sravankumar said:

The exam will conducted only the objective or descriptive type?

14. sravankumar said:

sir wt is the cutoff marks for st candidates.pls inform meeee sir

15. RAAAJ PARGANIHA said:

hi pls post me study material for NTPC EXAM and which book to follow .am from MECHANICAL branch

16. amit said:

respected sir,
i'am in 2'nd yr from electronics&instrumentation dept can i appear in ntpc entrance exam after completing my cource.

17. suvojit das said:

hello sir,
i m suvojit das studying in MRIU am in 6th semester and very serious about my placement in NTPC. so sir if you will provide me the source,from where i'll prepare,then it will benefit me a lot. sir plz give me information about the websites and books.
thank you.
plz mail me as soon as possible

18. pankaj tandekar said:

what is the syllabus for diploma mechanical ntpc examination

19. AKSHAY said:

is there any M.Tech program in CS & IT streams in NTPC??

20. somen said:

when do you declared excutive traine 2009 exam?please send me
time and date. thank you.

21. best said:

thanks.....................

22. NTPC Excecutive Trainee for EEE Dept said:

Please send the Question Papers for Excecutive Trainee Electical Department

23. Subash.K said:

sir,
send me last 5 (control&instrumentation)question papers with answers which was conducted by ntpc.thank you.

24. deepti said:

hi sir , i need the study material abt HR for NTPC ET Exam

25. kapil saini said:

sir,
if any change related to written exam comes from your side then , please inform on your NTPC site. It will benefitial for all candidate those appearing in this test.
Thanks.

kapil saini

26. priya said:

hi pls post me study material for NTPC EXAM and which book to follow .am from ece branch

27. Vimal said:

Hi i m civilengineer with 3 yr experienced in power Plant . Please send the question paper to my mail n hall ticket

28. Priya M said:

Hi, im appearing first time for NTPC ET exam.

please send me the previous year question paper for civil engineering stream..
it will be handfull for my preparation..

I require questios of last ntpc exams to give me right way for preparation.please provide as soon as possible.

30. sandhya said:

i did n't got my hall ticket please send hall ticket to me

31. mohan said:

* An ice block submerged in the water, if the ice melts level of water (increase, decrease, remains same, none)

* Simply supported beam with w point load at the middle, max. bending moment? (wl/4)

* Simply supported beam with UDL ,max.deflection (wl4/384EI)

* Cantilevel beam point load at tip,max.bending momemt comes at (end)

* When bearing life L10 represents (bearings 10%survive,bearings 10% fails, none )

* For welding high carbon steels which type of flame is used (oxidizing, carburizing, neutral, none)

* Arrange the following cutting tools in decreasing order of machining hardness…Ceramics

* When P1 and P2 are the loads acting on bearings with life L1 and L2 then L1/L2=? L1/L2={P2/P1}10/3

* Product simplification does not mean? (Product characterization)

* Which of the following process has the most scope in manufacturing? CAD/CAM, CAM, CIM, All the above.

* Concurrent engineering means? (Manufacturing, designing, both, none)

* Which manufacturing process yields higher output and increases worker productivity- (process layout, line+process, functional layout)

* 18-4-1 represents-, Tungsten-Cr-Vn

* For which material is negative allowance rovided-(Graphite,steel,bronze,cast iron)

* What is the recrystallisation temperature of tin- (60,300,1000,none)

* What is the purpose of borax in soldering-

* Top gates are provided in which type of casting-(Shallow casting,simple,complex,none)
* Which statement is true regarding simple gear trains-(i/p and o/p shafts r fixed, each shaft has 2 gears, i/p & o/p shafts r moving)

* What is the purpose of normalizing- (Refining of grain structure)

* As the grain size is decreased-(Hardness increases,corrosion resistance decreases,both)

* Isothermal gas is filled in a vessel at a pressure P and temperature T then considering the compressible forces as the height increases pressure ??(linearly increases linearly decreases exponentially increase )

* A bottle is filled with water and air and is tied to a string and is rotated in horizontal direction. Then in which direction will air bubble travel?

* A empty bottle(in vaccum) filled with a gas at temp T and press P when the pressure of bottle reaches P temperature of the gas is _? (T,T/K,TK)

* Bearing somerfield number _ with load on bearing? (increases,decreases,no change)

* Critical radius for a sphere is-(2k/h)

* Critical radius exist for_ (spherical,cylindrical,both,slab)

* Convectional resistance/internal resistance is called (biot number)

* Nusselt no. is? (hl/k)

* EOQ=?

* Which statement is true regarding critical path method? (i only one critical path exists for a network, more than one with same duration,)

* Shipment cost,inspection cost,storage cost comes under_ (carrying cost ,holding cost,)

* Ischronous governers sensitivity is- (zero,infinite)

* Self energized brakes are-(friction moment acts in the direction of application of force,opposite to the direction of force, does not need a force to act ,)

* The ratio of heat capacities for evaporator and condenser is_ (Zero,infinity)

* When steam and air mixture with partial pressure 0.06 and 0.07 enters a condenser what is the condenser pressure? (0.06,0.07,0.53,0.03)

* In pulverized burning of coal heat transfer from boiler to water occurs through_( predominant radiation, convection, conduction, conduction+convection)

* Rankine cycle efficiency for same parameters increases mostly with_(reheat, regeneration, super heating )

* Ericson cycle with all reversible processes assume_(carnot cycle,stirling,brayton

* Air delivery tank at outlet of reciprocating compressor is provided for_ (provide constant pressure, avoid cavitation, )

* High speed centrifugal pump has _? (vanes faces in forward direction side,backward,radial vanes)

* Thermal efficiency in decreasing order_? (Otto cycle>dual cycle>diesel cycle)

* When a 1000 K body comes in contact with atmosphere at 300K a loss of 9000 KJ heat is transferred. The net available energy transferred is_
* When entropy of a system increases_? (unavailable energy increases )

* Rolling is a process widely used for_?

* Tool nomenclature_?

* In francis turbine movement of steam?

* For low power consumption _? (rake angle should be increased / decreased, nose angle increased/ decreased)

* Continuous chips occur in_? (High speeds,low speeds,both,none)

* Primary forces in a reciprocating engine_? (fully balanced, partially balanced, completely unbalanced, none)

* In proximate analysis pyrogallol is used for analysis of which element_? (nitrogen,oxygen)

* Sulphur content in fuel greatly affects_? (corrosion)

* Heat transfer through radiation can be increased by_? (decreasing emissivity and increases temperature of hot body)
* Which theory of failure clearly explains the failure in case of ductile material? (Maximun shear stress theory or Guests or trescas theory)

When a material is subjected to continuous cycles which limit is being verified? (Endurance limit)

Where is stress concentration maximum? (notches, stress reducing through cuts)

* Power transmitted through a belt drive_? P(T2-T1)

* According to Eulers theory crippling or buckling load is ____ (Wcr = Cπ2EI/l2)

* During sensible heating, specific humidity_? (remains constant)

* COP of a refrigerator is _? (greater than 1 )

* The maximum temperature in a refrigeration cycle is_? (less than/greater than/equal to critical temperature)
* The pressure at the throat of the nozzle_? (maximum,min)

* For a statically determinate set of forces for equilibrium_? (∑ f(X), f(Y), f(Z)=0,∑M=0)

* For a statically determinate set of forces- (there r as many equations as the no. of unknowns)
* 1-2-3 analysis is used for_? (1.break even analysis, ??)

* A problem on mean time of service something like a salesman has a rating of 120. considering 10% allowance time calculate the time required to serve 120?

* A problem n determining time in a queue?

* Energy equation for a laminar flow is _? (Uniform and steady ,non uniform and unsteady)
* Undercuts in welding occurs due to_? (low welding current, high welding current)

* Work holding equipment in shearing?

* At the centre of a nozzle _? (Mach no=1;=1)

32. srikanth kancharla said:

Iam writing ntpc exam first time. I dont know the interview process and the type of questions asked in that. I need them.

33. soumya mishra said:

i need some sample question papers of last NTPC exams. I am unable to lacate the same on net.