Here is a NTPC previous placment exam: See the Candidate Experience for NTPC Placement / Freshers Recruitment Exam 2006
120 technical questions and 50 questions on general aptitude.
1/3 negative marks for all the questions.
2 hours exam
No calculator is allowed.
NTPC Technical Section Topics and Questions:
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,)
(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.)
Led bias,tunnel diode bias,fet,bjt,feedback amplifier
Properties,optoelectronic devices,class c amplifiers,multivibrators,band gaps in Si,Ge.,intrinsic concentration etc.
About ozone layer depletion (CFCs)
The total efficeincy of a thermal plant.
Amplitude modulation,FM Vs. AM.
Director,reflector in yagi uda,microwave frequency ranges,bands,
ground wave,sky wave,space wave propagation.In which media em waves travel
Microprocessor 8085,interrupt structure,architecture,memories,mapping
schemes,8255,interrupt controller(8259)(ICW1,OCW etc.)
hard disk,floppy disk access times
abc analysis(inventory management)
fourier transfor,sinc functions,convolution
resonant frequency formulae
a/d d/a converters,differentiators and integrators,instrumentation
Note: There are more NTPC Technical Section Questions free here. Download ntpc placement question papers free here. More sample technical placement paper questions are available for freshers / b.tech be (bachelors of engineering) freshers.
NTPC Aptitude Section Questions:
I could attempt all the questions easily.
English Test Section:
fill in the sentences with the most suitable word type of questions
Aptitude problems like train problems,loss profit sums, ratios, etc.
Tips: You need to manage the time for NTPC Placement Paper Written Part Questions very well. The time is 2 hours and the questions seem too many.