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
(2 votes)

time 2 hrs. subject
time 2 hrs.
subject questions:
que frm microprocessor 8085,interupts(e.g which intrpt has highest priority),address line,architecture.
control systems:routh criteria,all basics.
opamp,inst amplifier,inverting amplifier
hexa decimal conv,BCD conv
multivibrators,abt bistable multivibrator,amplitude modulation,richter scale is used to measure?
bio gas
instrumentation:LVDT,strain gauge,P,I,controllers,feed forward controllers,bellows, match d following que lyk e.g
seeback effect-?
piezo electric effect-?
diiffrnt types of control valves,more que frm P,I ,Dcontrollers.
in dp type inst ,flow is proportional to?
signal conditioning,coriolis flow meter,probs based on accuracy
go through all d instrumentation papers.
Aptitude:
problms frm ratio,profit loss,volumes,pipes n cisterns etc.
word analogies, paragraph que,fill in d most suitable type que,antonyms,synonyms
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