NTPC
APTITUDE SECTION
For this section no special attention is required only rs aggarwal is enough and it also has easy level of English section
TECHNICAL 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
14-15 ques on thermodynamics
8-9 ques on dynamics of machines
5-6 ques on machine desine
10-11 ques on turbines
7-8 ques on heat transfer
5-6 ques on operation research & management
8-9 ques on fluid mechanics & machines
(3 votes)
First 120 question on
First 120 question on technical and 50 questions on general aptitude.
1/3 negative marks for all the questions.
2 hours exam.(No calculator allowed)
Question paper along with the key sheet should be handed over to the
invigilator after the end of exam.
About the Technical:
questions about diac,triac,buck effect etc.
Control systems,synchros,all basics and theoretical
computer NETWORKS: (abt CSMA/CD,bridges,routers,Ieee standards like 802.3,etc.(abt ethernet))
VLSI (CMOS structure, functioning,)
DIGITAL ELECTRONICS
(gates,negative logic,postive logic,nand,counters,etc.)
Sample question:write a particular number in BCD,or hex equivalent etc.)
cominational circuit design(no of gates required etc.)
electronics:
led bias,tunnel diode bias,fet,bjt,feedback amplifier
properties,optoelectronic devices,class c amplifiers,multivibrators,band gaps
in Si,Ge.,intrinsic concentration etc.
general:
abt ozone layer depletion (CFCs)
The total efficeincy of a thermal plant.
communications:
Amplitude modulation,FM Vs. AM.
Antennas :
Director,reflector in yagi uda,microwave frequency ranges,bands,
ground wave,sky wave,space wave propagation.In which media em waves travel
faster.
Microprocessor 8085,interrupt structure,architecture,memories,mapping
schemes,8255,interrupt controller(8259)(ICW1,OCW etc.)
hard disk,floppy disk access times
mangement science
abc analysis(inventory management)
signals systems:
fourier transfor,sinc functions,convolution
network theory:
resonant frequency formulae
OP AMPS:
a/d d/a converters,differentiators and integrators,instrumentation
amplifiers.
digital communications:
fdm, tdm
I almost covered 95% of the topics.This is as far as I could remember.
About aptitude:
synonyms
antonyms
comprehension passages
aptitude problem solving skills(train probs,loss profit sums,ratios,etc.)
word analogies
fill in the sentences with the most suitable word type of questions.
Tips:Time management is very important.Since most of the technical questions
are theoretical,complete them quickly and do well in the aptitude section.
Individual cut off in each of the 2 sections is necessary.
i don't know the actual cut off though.
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