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1st August 2014, 03:18 PM
Super Moderator
Join Date: Apr 2013
Re: Previous paper for NTPC-HR

Here I am giving you question paper for NTPC HR executives examination in a file attached with it so you can get it easily

syllabus for NTPC for HR executives exam
The syllabus for NTPC for HR executives exam is as under:

Part I is separate for separate discipline
Questions: 55
Type: multiple-choice questions

1. Human Resource Management
2. Human Resource Planning
3. Recruitment & Selection
4. Human Resource Development: Strategies and Systems
5. Performance Management & Appraisal
6. Training and Development
7. Management of Compensations and Benefits
8. Rewards & Recognition
9. 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
23. International Business Environment
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
Part II is same for all disciplines

Questions: 35
Topics: Executive Aptitude Test
Reading comprehension
Verbal/Non verbal reasoning
Numerical ability
Data Interpretation
General Awareness

Q.1 about yourself & family background ?

Q.2 Why u choose Power sector as ur carrier starting not any
other sector ??

Q. 3 What think abt NTPC ?

Techincal Questions:-

Q.1 about Vocational Training……What u did , see the main

Q.2 Why a transformer Noise during its running condition ?

Q.3 about transformer oil material & Test name for the

measurement of its dielectric strength & wht will u do if

its dielectric strength goes low ? ……..some discussion type ?

Q.4 What is relation between transmission lines & Communication lines ?

Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ?

Q.6 how fault in an electric system is detected & how protection of equipments is done ?

Q.7 Why we didn’t feel electric shock in an electric train ??

Q.8 Anything u want to ask from us ??
19th March 2015, 11:18 AM
Re: Previous paper for NTPC-HR

This is akash appearing for NTPC- HR examination.. kindly provide me with the previous year question papers along with syllabus..(electrical engineering) if available, for my besr preparations…
19th March 2015, 11:19 AM
Super Moderator
Join Date: Apr 2013
Re: Previous paper for NTPC-HR

We are hereby providing you with the question papers and syllabus:

1.Question Paper:

1. Given four unit-circle plots identify the one corresponding to a bandpass filter.

2. A 4 kHz signal is sampled at thrice the Nyquist rate and sent through a channel with error ?
1%. Calc the bandwidth of the channel.

3. Given a two port network in the form of a T find o/p admittance in terms of y-parameters.

4. Connect two 1? resistors in series, then connect two 1H inductors across one of the

resistors such that the ckt looks like a 1? resistor in series with a ?-section of a resistor and
two inductors. With the series resistance on the i/p side, calc the transfer function of this ckt

5. Inverse laplace transform of 1/s2[d/ds(e-3s/s)]

6. Lower useful input limit of a transducer is determined by?

7. Air-cored inductors are used for low frequency/high frequency/equal frequency operations.

8. Given 4 pole-zero plots identify which one corresponds to the driving point impedance of a
series resonant ckt.

9. Expression for ?(n): u(n)-u(n1)/ u(n-1)-u(n+1)/ u(n)+u(n+1)/?

10. The sequence (2,3,4,3) is circularly even/circularly odd/circularly zero/both circularly
even and odd.

11. Z-transform of 3n u(n).

12. Match the following with their characteristics: LED/LCD/nixie tube/optical fibre.

13. Numerical on a photodiode: to calculate the responsivity/sensitivity when a specified no
of incident photons cause a specified no of electron generation.

14. Given an op-amp ckt obtain an expression for o/p voltage.

15. No. of encirclements made about the origin of the nyquist plot of the open loop TF:1/[(s-

16. For a radioactive sample which decays to 12.5% of its initial value in x days, the half life
is given by___
17. For a repeater in a PCM cable identify the correct sequence of actions amongst

18. O/P of a delta modulator when a ramp input is fed to it.

19. Steady state error with ramp i/p for a type-0 system.

20. Creeping occurs in energy meters bcoz?

21. Ultrasonic method of flow measurement cannot be used in liquids with air bubbles/has
less attenuation in air compared to liquid-identify the false statement (if any) among these.

22. Major cause of losses in a fibre optic cable: dispersion/total internal refraction/presence of
core and cladding/?

23. Which layer in the OSI model is concerned with printer buffering,etc:

24. Given some function F(j?) calc its inverse CTFT.

25. Relation between laplace and z-transform: s=z/ s=ln z/ s=( ln z/T) /?

26. Maxm and minm probability error among ASK,PSK,FSK,DPSK etc

27. Which of the following is a non linear modulation scheme: PAM/QAM/PCM/?

28. Match the following functions: e-t , e-t + et, sin(?t) with causal and stable system, causal
and unstable system, etc.
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29. Given a ckt with a 50 ? resistor in series between two voltage sources of 10 V and 5 V
magnitude calc power delivered by 5 V source.
30. Laplace transform of e-3tu(t)+e2tu(-t).
31. Which photodetector has output affected by own intrinsic noise: PN/APD/PIN/all.
32. AC signal conditioning is used for inductive and capacitive/resistive/piezoelectric
transducers/all of the above.
33. When I mode is added to proportional control system stability increases/ decreases/
steady state performance deteriorates/damping increases.
34. Reset control is another name for integral/derivative/proportional/? Control.
35. Time response of system having transfer function 625/(s2+25) will be of the form?
36. Given some transfer function calc the peak response time.
37. The nyquist sampling rate of the function [sin(at)/t]2 will be?
38. The feedback topology that results in increased i/p and o/p impedance is current
series/voltage series/current shunt voltage shunt.
39. Numerical on cardiac output calculation given heart rate and volume per beat.
40. In an ECG instrumentation amplifier the differential gain is provided by 1st stage/2nd
stage/mismatched resistors/output stage.
41. Repeat ques 40 above for the classic 3-op amp instrum amplifier.
42. EMG signals are of the order of mV/V/?V/?
43. Computer assisted tomography is used for?
44. Numerical on electrostatic instrument, to calculate deflection given spring constant,
torque etc.
45. To prevent loading of a ckt i/p impedance of a CRO should bee
46. Addition of a zero to a 2nd order underdamped system results in increase/decrease of rise
time and increase/decrease of peak overshoot.
47. For PI ctrl we obtain improved bandwidth/improved steady state performance/ worsened
steady state performance/?
48. SNR of normal AM system is comparable/3 dB lower/3 dB higher/6 dB lower over DSBSC
and SSB system.
49. Which is an effective measure of the noise related performance of an amplifier:
SNR/noise ratio/thermal noise/shot noise.
50. Given baseband signal freq and carrier freq calc which of the freq given will not be
present for conventional AM.
51. Distinction between FM and PM at high frequencies.
52. Which of these has the least propagation delay RTL/ECL/I2L/CMOS.
53 Switching speed of CMOS is affected/unaffected by changes in supply voltage.
54. Which of these provides a measure of heart rate P/QRS complex/T/none of these.
55. Given a ckt of a logarithmic amplifier you had to identify what ckt was it.
56. JFET can operate in depletion/enhancement/both/none of the above modes.
57. When a BJT operates in saturation the junctions are fwd biased/reverse biased/?
58. BIBO stability criterion implies that poles are within/outside/on the unit circle.
59. For faithful amplification of low amplitude signals the cut-off/active/saturation regions of
a transistor is used.
60. Lissajous pattern of a signal rotates 36 times per minute. if the oscillator frequency is 560
kHz then the unknown freq is?
61. % resolution of a 10 bit ADC.
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62. To obtain 10 mV resolution on 5 V range how many bit DAC is to be used..
63. Why is LCD preferred to LED.
64. How will 0.6973 be displayed on 10 V range of a 4 ½ digit multimeter.
65. Which of the following cannot be used for an automatic feedback temp ctrl system
thermocouple/thermometer/thermistor/IC sensor.
66. Y(n)=X(-n+3) is an example of a linear/non linear and shift variant/invariant system.
67. The falling body method is used to determine viscosity/humidity/?
68. Which of these methods of viscosity measurement gives greatest accuracy falling body
method/rotating cylinder method/both/?
69. Some question on gas chromatography
70. A device having a rotor with 3 Y-connected coils and a stator is likely to be a
synchro/RVDT/control transformer/?
71. In a twisted ring counter the initial count is 1000. after the 4th clock pulse its state will
72. A 240 kHz signal is given into a 3 bit binary ripple counter. The lowest o/p freq
obtainable is?
73. For parity bit checking which of the following gates can be used
74. Why is a BJT called so..
75. Identify the expression for gauge factor of a strain gauge among the given options.
76. In a semiconductor strain gauge as tensile strain is applied what changes take place in the
n and p areas..
77. How does a radioactive level gauging system work?
78. A capacitive transducer measuring level works on the principle of change in distance
between plates/change in dielectric strength/?
79. For maximum power transfer in an AC circuit the condition to be satisfied is
ZL+ZS=0/XL+XS=0/none of these/?where l and s refers to load and source respectively.
80. Find the transfer function from a block diagram.
81. Synchronous ctrs are preferred to asynchronous ctrs bcoz they are faster/glitches at the
output can be avoided/both/none of these.
82. The lissajous figure formed on an oscilloscope looks like the English figure of 8. if the
vertical channel input is 1 kHz the horizontal input freq is?
83. IE=IC for a transistor in saturation/cutoff/active/both saturation and active regions.
84. Reproducibility of measurements is called accuracy/precision/linearity/none of these.
85. Which of these is not strictly a static characteristic accuracy/precision/tolerance/linearity.
86. The shunt coil in a Q meter has resistance of the order of m?/?/k?/..
87. For measuring inductance of high Q coils the bridge used is Maxwell-wien/Schering/?
88. Which of these measures inductance in terms of capacitance Maxwell and hay/Maxwell
and Schering/hay and Schering/?
89. In a flip-flop with preset and clear inputs both are applied simultaneously/clear is cleared
when preset is applied/preset is cleared when clear is applied/?
90. What happens when the RET instruction is encountered by 8085
91. A 1024*8 memory chip needs how many address lines?
92. What happens when the PUSH instruction is encountered by 8051.
93. In FM relation between no of sidebands w.r.t. modulating freq
94. Numerical on DPSK.
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95. A multiplexer accepts input data and provides one output all the time/one output at a
time/many outputs at a time/many outputs all the time.
96. Pulse modulation is essentially a process of multiplexing/?
97. Wave shape is altered by clipper/clamper/voltage doubler/amplifier.
98. 4 signals of frequencies 100,100,200 and 400 Hz are sampled at nyquist rate and sent
through TDM on a channel.the bandwidth of the channel is?
99. Superposition can be applied to a ckt with initial conditions/non-linear ckt/?
100. Kelvin’s double bridge is used for the measurement of?
101. Which of these is not an active transducer thermocouple/solar cell/RTD/none of these.
102. Oscillator using positive feedback has gain of 0/?/undefined value/?
103. Wien bridge oscillator should initially have closed loop gain >3/<3/=3/?
104. Some question on gain margin and phase shift of a system.
105. Fourier series expansion of even function has sine terms only/cosine terms only/no odd
106. Full wave rectifier gives clean dc o/p/dc o/p with small ripple/positive half and inverted
negative half of i/p as o/p.
107. Which of these values of ? gives damped oscillations: 0/1/1.6/0.6
108. For a transformer of ratio 1:a and excited by a source V with impedances Z1 and Z2 on
the primary and secondary side value of a for maxm power transfer should be..
109. Fourier transform of cos(?0t) is?
110. At t=0 the step response of a 1st order system is?
111. 555 can be used as a monostable/astable/freq dividing ckt/all of these.
112. In a PT when the secondary is open ckted with the primary excited what will happen.
113. If a system is marginally stable then the nature of oscillations will be?
114. Linear encoders mostly use straight binary/BCD/gray code.
115. For an accelerometer working in displacement mode the ratio of forcing freq to natural
freq should be?

2.NTPC Syllabus for Executive Trainee- 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.

Thank you

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