Best NTPC diploma trainee exam books (100% Job Guarantee)

Here you will find the list of objective book for preparing NTPC diploma trainee exam, by practising these books you will get some confidence to clear the exam.

Technical section:


This book is useful to learn and practice basic questions,Some of the topics explained in this book are Applied Physics, Basic Electricity, Instrumentation and Measurements, and Electronic Analog Circuits which are most important in all competitive exams.


This book useful for all competitive exams for electrical engineering background, the concepts included are 
1. Basic Electrical Engineering
2. A. C. Circuit
3. D.C. Generator and D. C. Motors
4. Illumination
5. Electrical Heating and Welding
6. Electrolysis and Storage Batteries
7. Alternator
8. Power Plant Engineering
9. Instruments and Measurements
10. Control System
11. Industrial Drives
12. Model set of papers

 Aptitude and reasoning section

I already posted the best books for aptitude and reasoning for competitive exams, check our post

NTPC Diploma trainee syllabus for ECE and EEE

CaptureNTPC recruits Diploma candidates every year, the selection process consists of the online written test followed by Interview, here we are going to give you the details of syllabus for the branch Control and Instrumentation, Electrical.
The ECE peoples can also apply in C&I disciple.

The test will be in two parts. Part-I will be Knowledge Test and will consist of 70 multiple-choice questions of respective discipline.

For Electronics:
Most of the questions will ask from

  • Electronics and devices,
  • Digital electronics,
  •  Microprocessor,
  • Communications,
  • Electronics Instrumentations,
  • Signal and systems,
  • Basics of mathematics,
  • Control systems,
  • Electromagnetic fields.
  • Computer Networks

For Electrical:

  • Power systems,
  • Basics of Electronics ,
  • Electrical Circuits & Analysis ,
  • Electrical Instruments & Measurements,
  • Electrical Machines,
  • Power Electronics,
  • Control systems,
  • basics of mathematics. 

Part-II will be Aptitude Test and will consist of 50 multiple-choice questions on

There will be 1/4th mark will be deducted for each wrong / multiple answered question.The Technical syllabus is not given by NTPC company that one expected by us based on previous papers to give an idea to you.

Nowadays most of the competitive exams are conducting written exam online, so practice and prepare your self through our new website:

Important Topics in Aptitude and reasoning for placements and competitive exams

aptitude preparation
Quantitative Aptitude is very important subject to test your problem solving skills. so, in every competitive written exam they asked questions from this subject, not only in written they may asked some brain storming puzzles in interview also. It is the one of the key concept to qualify written exam almost every students who know basic mathematics can solve most of the questions in the exam but the main problem is that the time management,the recruiters does not give enough time to solve the problems so one who has more practice the model questions before exam can easily solve in the exams.
                I already discussed some good books for practicing aptitude,Reasoning and puzzles before,in that R.S.Agarwal quantitative aptitude book is sufficient for most of the exam in both government and private sectors and also it useful for campus placement preparation.Here I want to tell some of the main important topics you must practice more for placements and any competitive exams.
             Almost every topic is important,in exams they have a rights to ask any thing from any topic to filter the candidates. we must practice all topics,but we must concentrate more depth in some topics what I am discussing here because those topics are some what confusing and time taking so,to solve those problems in exams quickly we need more practice and mostly 70% of the questions will asked from these areas only.
           The topics we must concentrate more are 
           For placement or private company exam preparation we need to practice more questions because they will ask some question as the level of CAT exam.

In order to prepare online, prepare from our new site :

Important objective questions for vlsi core companies

1. VLSI technology uses ________ to form integrated circuit
a) transistors
b) switches
c) diodes
d) buffers

2. Medium scale integration has
a) ten logic gates
b) fifty logic gates
c) hundred logic gates
d) thousands logic gates

3. The difficulty in achieving high doping concentration leads to
a) error in concentration
b) error in variation
c) error in doping
d) distrubution error

4. _________ is used to deal with effect of variation
a) chip level technique
b) logic level technique
c) switch level technique
d) system level technique

5. As die size shrinks, the complexity of making the photomasks
a) increases
b) decreases
c) remains the same
d) cannot be determined

6. ______ architecture is used to design VLSI
a) system on a device
b) single open circuit
c) system on a chip
d) system on a circuit

7. The design flow of VLSI system is
1. architecture design 2. market requirement 3. logic design 4. HDL coding
a) 2-1-3-4
b) 4-1-3-2
c) 3-2-1-4
d) 1-2-3-4

8. ______ is used in logic design of VLSI

9. Which provides higher integration density?
a) switch transistor logic
b) transistor buffer logic
c) transistor transistor logic
d) circuit level logic

10. Physical and electrical specification is given in
a) architectural design
b) logic design
c) system design
d) functional design

11. Which is the high level representation of VLSI design
a) problem statement
b) logic design
c) HDL program
d) functional design

12. Gate minimization technique is used to simplify the logic.
a) true
b) false

13. The condition for linear region is
a) Vgs lesser than Vt
b) Vgs greater than Vt
c) Vds lesser than Vgs
d) Vds greater than Vgs

14. As source drain voltage increases, channel depth
a) increases
b) decreases
c) logarithmically increases
d) exponentially increases

15. Electronics are characterized by
a) low cost
b) low weight and volume
c) reliability
d) all of the mentioned

16.  Speed power product is measured as the product of
a) gate switching delay and gate power dissipation
b) gate switching delay and gate power absorption
c) gate switching delay and net gate power
d) gate power dissipation and absorption

17. nMOS devices are formed in
a) p-type substrate of high doping level
b) n-type substrate of low doping level
c) p-type substrate of moderate doping level
d) n-type substrate of high doping level

18.  Source and drain in nMOS device are isolated by
a) a single diode
b) two diodes
c) three diodes
d) four diodes

19. In depletion mode, source and drain are connected by
a) insulating channel
b) conducing channel
c) Vdd
d) Vss

20. The condition for non saturated region is
a) Vds = Vgs – Vt
b) Vgs lesser than Vt
c) Vds lesser than Vgs – Vt
d) Vds greater than Vgs – Vt

21.  In enhancement mode, device is in _________ condition
a) conducting
b) non conducting
c) partially conducting
d) insulating

22. The condition for non conducting mode is
a) Vds lesser than Vgs
b) Vgs lesser than Vds
c) Vgs = Vds = 0
d) Vgs = Vds = Vs = 0

23.  nMOS is
a) donor doped
b) acceptor doped
c) all of the mentioned
d) none of the mentioned

24. MOS transistor structure is
a) symmetrical
b) non symmetrical
c) semi symmetrical
d) pseudo symmetrical

25. pMOS is
a) donor doped
b) acceptor doped
c) all of the mentioned
d) none of the mentioned

26. Inversion layer in enhancement mode consists of excess of
a) positive carriers
b) negative carriers
c) both in equal quantity
d) neutral carriers

27. CMOS technology is used in developing
a) microprocessors
b) microcontrollers
c) digital logic circuits
d) all of the mentioned

28.CMOS has
a) high noise margin
b) high packing density
c) high power dissipation
d) high complexity

29. In CMOS fabrication, nMOS and pMOS are integrated in same substrate.
a) true
b) false

30. P-well is created on
a) p subtrate
b) n substrate
c) p & n substrate
d) none of the mentioned

31. Oxidation process is carried out using
a) hydrogen
b) low purity oxygen
c) sulphur
d) nitrogen

32. Photoresist layer is formed using
a) high sensitive polymer
b) light sensitive polymer
c) polysilicon
d) silicon di oxide

33. In CMOS fabrication,the photoresist layer is exposed to
a) visible light
b) ultraviolet light
c) infra red light
d) fluorescent

34. Few parts of photoresist layer is removed by using
a) acidic solution
b) neutral solution
c) pure water
d) diluted water

35. P-well doping concentration and depth will affect the
a) threshold voltage
b) Vss
c) Vdd
d) Vgs

36. Which type of CMOS circuits are good and better?
a) p well
b) n well
c) all of the mentioned
d) none of the mentioned

37. N-well is formed by
a) decomposition
b) diffusion
c) dispersion
d) filtering

38. _______ is sputtered on the whole wafer
a) silicon
b) calcium
c) potassium
d) aluminium

39. Lithography is:
a) Process used to transfer a pattern to a layer on the chip
b) Process used to develop an oxidation layer on the chip
c) Process used to develop a metal layer on the chip
d) Process used to produce the chip

40. Silicon oxide is patterned on a substrate using:
a) Physical lithography
b) Photolithography
c) Chemical lithography
d) Mechanical lithography

ECE core companies interview questions

1. Which among the following is a process of transforming design entry information of the circuit into a set of logic equations?
a. Simulation
b. Optimization
c. Synthesis
d. Verification

ANSWER: Synthesis

2. _________ is the fundamental architecture block or element of a target PLD.
a. System Partitioning
b. Pre-layout Simulation
c. Logic cell
d. Post-layout Simulation

ANSWER: Logic cell

3.  In VLSI design, which process deals with the determination of resistance & capacitance of interconnections?
a. Floor planning
b. Placement & Routing
c. Testing
d. Extraction

ANSWER: Extraction

4.  In Net-list language, the net-list is generated _______synthesizing VHDL code.
a. Before
b. At the time of (during)
c. After
d. None of the above


5. In VHDL, which object/s is/are used to connect entities together for the model formation?
a. Constant
b. Variable
c. Signal
d. All of the above

ANSWER: Signal

6. Which type of simulation mode is used to check the timing performance of a design?
a. Behavioral
b. Switch-level
c. Transistor-level
d. Gate-level

ANSWER: Gate-level

7. In the simulation process, which step specifies the conversion of VHDL intermediate code so that it can be used by the simulator?
a. Compilation
b. Elaboration
c. Initialization
d. Execution

ANSWER: Elaboration

8. Which among the following is an output generated by synthesis process?
a. Attributes & Library
b. RTL VHDL description
c. Circuit constraints
d. Gate-level net list

ANSWER: Gate-level net list

9. Register transfer level description specifies all of the registers in a design & ______ logic between them.
a. Sequential
b. Combinational
c. Both a and b
d. None of the above

ANSWER: Combinational

10.   Which attribute in synthesis process specify/ies the resistance by controlling the quantity of current it can source?
a. Load attribute
b. Drive attribute
c. Arrival time attribute
d. All of the above

ANSWER: Drive attribute

11.  Which type of digital systems exhibit the necessity for the existence of at least one feedback path from output to input?
a. Combinational System
b. Sequential system
c. Both a and b
d. None of the above

ANSWER: Sequential system

12.   The output of sequential circuit is regarded as a function of time sequence of __________.
A. Inputs
B. Outputs
C. Internal States
D. External States
a. A & D
b. A & C
c. B & D
d. B & C


13.   The time required for an input data to settle _____ the triggering edge of clock is known as ‘Setup Time’.
a. Before
b. During
c. After
d. All of the above

ANSWER: Before

14.   Hold time is defined as the time required for the data to ________ after the triggering edge of clock.
a. Increase
b. Decrease
c. Remain stable
d. All of the above

ANSWER: Remain stable

15.  An Antifuse programming technology is predominantly associated with _____.
a. SPLDs
b. FPGAs
c. CPLDs
d. All of the above


Important General awareness questions for RRB

1. The name of the coastal area of Andhra Pradesh state is
a) Circar coastal area
b) Konkan coastal area
c) Malabar coastal area
d) Coramandal coastal area

2.The second largest coastal area state is
a) Tamilnadu
b) Goa
c) Andhra Pradesh Odisha
d) Kerala

3.The length of circar coastal area is
a) 1300km
b) 972km
c) 1200km
d) 1500km

4. Malabar coastal area is present in which state
a) Kerala
b) Karnataka
c) Goa
d) Kolkatta

5.The Height of Himalayas is
a) 8000m
b) 8848m
c) 8848km
d) 8000km

6.The total number of coastal areas in west part of India are
a) 4
b) 5
c) 3
d) 6

7.The  total number of coastal areas in East part of India are
a) 4
b) 5
c) 3
d) 6

8. The length of Coromandel coastal area is
a) 960km
b) 500km
c) 250km
d) 300km

9. UNO Headquarters is at
a) Japan
b) Newyork
d) Italy

10. WHO Headquarters is at
a) Geneva
b) Norway
c) Finland
d) Thailand

11. Pink city in India is
a) Nagpur
b) Jaipur
c) Canada
d) Banglore

12. Garden city India is
a) Banglore
b) Hyderabad
c) Kolkatta
d) Mumbai

13. New world is
a) America
b) Britan
c) Finland
d) Siam

14.Which is an orange city in India
a) Nagpur
b) Jaipur
c) Canada
d) Banglore

15. Which of the following is a Dwarf planet
a) Mercury
b) Pluto
c) Jupiter
d) Venus

Important General awareness questions for RRB, SSC exams

1. Study of Space is called Casmology

2. The age of Sun is  4.9 Billion years

3. The age of Earth is 4.6 Billion years

4. The smallest planet in the solar system is Mercury

5. The planet nearest to sun is Mercury

6. The High dense planet is Earth

7. The hottest planet in the solar system is Venus

8. The Brightest planet in the solar system is Venus

9. The only Satellite  of Earth is Moon

10. The first man to put leg on the Moon is  Nelim Armstrong

11. The largest planet in the solar system is Jupiter

12. The coldest planet in the solar system is Neptune

13. The Twin planets in the solar system are Venus & Earth

14. The total number of planets in the solar system are  8

15. Red planet is Mars

16. Blue planet is Earth

17. High rotation planet is Venus

18.The Least dense planet is Jupiter

19. Which planet is called Morning star -Venus

20. Which planet is called Evening star -Venus

21. The Dwarf planet is Pluto

22. ISRO established in 1969-August-15

23. NASA established in 1958-July-29

24. Which planet is called"Lord of Heavens"-Jupiter

25. According to which theory universe is still expanding- Big Bang Theory

26. The most abundant element in earth is Oxygen

27. The shape of the earth is Oblate Spheroid (or) Geoid

28. Sun age can be calculated by Radio Active method

29. Earth equatorial diameter is 12756 km

30. Earth poles Diameter is 12714 km

31. Sun rays takes how much time to reach earth- 8 Minutes

32. Sea of Tranquility is present in Moon

Important General awareness questions for Railway exams

1. Battle of Waterloo  happened in which year
a) 1815
b) 1915
c) 1825
d) 1805

2. Burma Partitioned from India in which year
a) 1937
b) 1945
c) 1927
d) 1930

3. World Literacy day is on
a) Sep 8
b) July 26
c) June 23
d) Oct 9

4. Quit India movement in which year
a) 1945
b) 1942
c) 1946
d) 1940

5. Bombay Blood Group Discovered in which year
a) 1940
b) 1945
c) 1960
d) 1943

6. International Women's day is on
a) March 14
b) March 25
c) Sep 25
d) March 8

7. World No Tobacco Day is on
a) May 15
b) Jan 31
c) May 31
d) June 31

8. World pollution is observed on
a) June 11
b) July 11
c) August 25
d) March 13

9. Children day  is observed on
a) Nov 14
b) Nov 9
c) Oct 14
d) June 30

10. Pink Ribbon is related to
a) Career development
b) Cancer awareness
c) Pollution awareness
d) Traffic awareness

11. In India, Brain bank is located at
a) Mysore
b) Noida
c) Kerala
d) Lucknow

12. In India, Stemcell  bank is located at
a) Hyderabad
b) Chennai
c) Mumbai
d) Mysore

13. Dengue fever caused by which virus
a) Alfa virus
b) Beta virus
c) Rino virus
d) Varicella Virus

14. What is the majority element in proteins
a) Hydrogen
b) Oxygen
c) Carbon
d) Nitrogen

15. Mohiniattam is a folk dance of which state
a) Assam
b) Kerala
c) Ranchi
d) Tamilnadu

16. The Busiest Natural port in India is
a) Mumbai port
b) Marmagoa port
c) Mangalore port
d) Ennore port

17. The deepest natural port in india is
a) Tamilnadu port
b) Pardeep port
c) Visakhapatnam port
d) Kandla port

18. Malbar port is present in which state
a) Kerala
b) Goa
c) Kolkatta
d) chennai

19.Which of the following is a river-based port
a) Kerala port
b) Haldia port
c) paradeep port
d) Mumbai port

20. The largest artificial port is present in which state
a) Tamilnadu
b) Kolkatta
c) Odisha
d) Gujarat

21.The longest coastal area National highway is
a) NH1
b) NH7
c) NH5
d) NH6

22. The name of NH5 changed to
a) NH 44
b) NH 16
c) NH 65
d) NH 69

23. Which of the following is the artificial port
a) Mumbai port
b) Visakhapatnam port
c) Kandla port
d) Tamilnadu port

24. Sub emerged coastal area is present at which part of India
a) East
b) West
c) North
d) South

25. Emergence Coastal area is present at which part of India
a) East
b) West
c) North
d) South

26. East end point of India is
a) Dilpha
b) Assam
c) Gilbar
d) Ranchi

27. North Endpoint of India is
a) Indira col
b) Silcher
c) Raan of Kutch

28. West point of India is
a) Jaipur
b) Gorakhpur
c) Raan of Kutch
d) Pune

29. Indian Standard Time is based on
a) 82.5 North Latitude
b) 82.5 East Longitude 
c) 23.5 North Latitude
d) 23.5 East Longitude

30. World oldest mountains are
a) Aaravali mountains
b) Vindhya mountains
c) Satpura mountains
d) Himalayas

31. American space agency is
c) WHO
d) UNO

32. Indian Space agency is
c) WHO
d) UNO

33. NASA was established in which year
a) 1958
b) 1966
c) 1946

34. NASA stands for
a) National Aeroplane and space agency
b) National Aeronautical and space agency
c) National Aeronautics and  space administration
d) National Aerodynamic  and space agency

35. ISRO established in which year
a) 1965
b) 1969
c) 1959
d) 1962

Important General science question and answers for RRB exams-12/04/2018

1. The juice that presents in human stomach is
a) HCL
b) Gastric juice
c) pepsin
d) Lipase

2. The name of the pipe through which the food enters into the stomach is
a) oesophagus pipe
b) Polymer pipe
c) Stomach pipe
d) Plastic pipe

3. The enzyme that presents in the mouth is
a) Ptyalin
b) pepsin
c) Renin

4. The weight of human heart is approximately
a) 1300gm
b) 300gm
c) 500gm
d) 600gm

5. The liver produces which of the following juice
a) Gastric juice
b) Bile juice
c) HCL
d) pepsin

6. Bile juice is stored at which place
a) Gallbladder 
b) Stomach
c) Brain
d) Lungs

7. The term Autopsy is
a) Type of protein
b) Type of skin disease
c) Type of hormone
d) Post Morton 

8. Which of the following organ has both functionalities
a) Liver
b) Mouth
c) Pancrase
d) Stomach

9. The term fourth estate related to
a) Lungs disease
b) Heart disease
c) Kidney
d) Press

10. Which of the following is considered as Master Gland
a) Pituitary gland
b) Thyroid gland
c) Parathyroid gland
d) Gonads

11. Area wise largest organ in the human body is
a) Liver
b) Stomach
c) Skin
d) Lungs

12. The smallest muscle in the human body is
a) Steppes
b) Incus
c) Malicious
d) Stepadious

13. Glutamuscus muscle is present at
a) Buttock
b) Ears
c) Head
d) Cranium