NTPC Placement Paper

Company: NTPC

NTPC Placement Paper 22 April 2007 (New Delhi)

Paper Type : Technical – Other
Test Date : 22 April 2007
Test Location : Mount Carmel School,New Delhi


HELLO frns

I am giving u the paper minutes of NTPC exam on april 22 ,2007 b’cz I have faced the problem of non availability of any pattern or sample questions .It was really an easy paper so the cut off marks r really high. It constitutes of 170 questions (120 tech + 50 apti) in 2hrs.

For tech part the syllabus is same as of the GATE and for apti part R.S.Aggarwal is more than sufficient. As time duration is very short so time management is very important.


For this section no special attention is required only rs aggarwal is enough and it also has easy level of English section.


For this section u have to b good in the basics. No hard question were asked but u should b careful about your time . It has also some part of very basic general knowledge. The questions were from following topics

10-12 q about microprocessor(8085)

3 q abt RS232 standard

7-10 q of GK

4-6 q of opamp

10-15 q of digital comm..

2-5 q of microwave

15-20 q of analog devices

20-23 q of digital electronics(flip flops,gates,mux,no system etc)

1 q of ISO OSI model

5-8 q of control system

10-12 q of signals and their processing


passage for comp
word meaning based (antonym and synonyms) fetter, fester, lucid, anomaly, elucidate etc
word analogy based
what is a tunnel diode
wht is a zener diode
effect of + and – feedback on stability
composition of gobar gas
function of differential in the vehicle
function of stack register
fun of instruction pointer
fun of rst6.5,7.5
wht is an interrupt
output vtg calc on op amp
how a pulse train can b generated using registers
conversion of oct to hex,hex to binary
fun of quantizer in pcm
why fm is less prone to noise
fun of limiter in detection of FM
wht is envelop detector
phase shift of 1/s^2
signal limited to 1000 hz sampled at nyquist rate.quantizer has 128 level .calculate the bit rate of the system.
1.5 V battery supply same power to R1 and R2 separately(R1>R2).calc the internal resistance of battery
a wire is cut in two halves. one half is again stretched to th twice of length .calc the resistance.

Nitin Kumar

NTPC Placement Paper

About NTPC

NTPC is India’s largest energy conglomerate with roots planted way back in 1975 to accelerate power development in India. Since then it has established itself as the dominant power major with presence in the entire value chain of the power generation business. From fossil fuels it has forayed into generating electricity via hydro, nuclear and renewable energy sources. This foray will play a major role in lowering its carbon footprint by reducing green house gas emissions. To strengthen its core business, the corporation has diversified into the fields of consultancy, power trading, training of power professionals, rural electrification, ash utilisation and coal mining as well.

NTPC became a Maharatna company in May 2010. As of January 2020, there are 10 Maharatnas CPSEs in India. NTPC is ranked No. 2 Independent Power Producer(IPP) in Platts Top 250 Global Energy Company rankings. visit offical Website of NTPC for more details

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