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3. Answer correct mathematical question . You need brain for this :P LOL
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Conversion Problems :-

1.      Convert each of the following binary numbers to octal, decimal, and hexadecimal formats.

®    (111011101)2

to octal: 111 011 101 = (735)8

to decimal: =(1x28) + (1x27) + (1x26) + (1x24) + (1x23) + (1x22)  + (1x20)

                        = 256 + 128 + 64 + 16 + 8 + 4 + 1

= (477)10

to hexadecimal: 0001 1101 1101 = (1DD)16

®    (10101010111)2

to octal: 010   101   010   111 = (2527)8

to decimal: =(1x210) + (1x28) + (1x26) + (1x24) + (1x22)

 + (1x21) + (1x20)

= 1024 + 256 + 64 + 16 + 4 + 2 + 1

= (1367)10

to hexadecimal: = 0101   0101   0111 =  (557)16

®    (111100000)2

to octal: = 111   100   000  = (740)8

to decimal: =(1x28) + (1x27) + (1x26) + (1x25)

= 256 + 128 + 64 + 32

= (480)10

to hexadecimal: = 0001   1110     0000  = (1E0)16

2.      Convert each of the following octal numbers to binary, decimal, and hexadecimal formats.

®    (3754)8

to binary:   = (11 111 101 100)2

to decimal:            =(3x83) + (7x82) + (5x81) + (4x80)

= 1536 + 448 + 40 + 4

= (2028)10

to hexadecimal:     = (0111 1110 1100)2

= (7EC)16

®    (7777)8

to binary: = (111 111 111 111)2

to decimal =(7x83) + (7x82) + (7x81) + (7x80)

= 3584 + 448 + 56 + 7

= (4095)10

to hexadecimal: = (1111 1111 1111)2

= (FFF)16

®    (247)8

to binary: = (10 100 111)2

to decimal: =(2x82) + (4x81) + (7x80)

= 128 + 32 + 7

= (167)10

to hexadecimal: = (1010 0111)2

= (A7)16

3.      Convert each of the following decimal numbers to binary, octal, and hexadecimal formats.

®    (3479)10

to binary: = 3479 ÷2 = 1739

rem = 1

1739 ÷2 = 869

rem = 1

869 ÷2 = 434

rem = 1

434 ÷2 = 217

rem = 0

217 ÷2 = 108

rem = 1

108 ÷2 = 54

rem = 0

54 ÷2 = 27

rem = 0

27 ÷2 = 13

rem = 1

13 ÷2 = 6

rem = 1

6 ÷2 = 3

rem = 0

3 ÷2 = 1

rem = 1

1 ÷2 = 0

rem = 1

reading bottom to top of remainders = (110110010111)2

to octal: = 3479 ÷8 = 434

rem = 7

434 ÷8 = 54

rem = 2

54 ÷8 = 6

rem = 6

6 ÷8 = 0

rem = 6

reading bottom to top of remainders = (6627)8

to hexadecimal: = 3479 ÷16 = 217

rem = 7

217 ÷16 = 13

rem = 9

13 ÷16 = 0

rem = 13 (D)

reading bottom to top of remainders = (D97)16

®    (642)10

to binary: = 642 ÷2 = 321

rem =0

321 ÷2 = 160

rem = 1

160 ÷2 = 80

rem = 0

80 ÷2 = 40

rem = 0

40 ÷2 = 20

rem = 0

20 ÷2 = 10

rem = 0

10 ÷2 = 5

rem = 0

5 ÷2 = 2

rem = 1

2 ÷2 = 1

rem = 0

1 ÷2 = 0

rem = 1

reading bottom to top of remainders = (1010000010)2

to octal: = 642 ÷8 = 80

rem = 2

80 ÷8 = 10

rem = 0

10 ÷8 = 1

rem = 2

1 ÷8 = 0

rem = 1

reading bottom to top of remainders = (1202)8

to hexadecimal: = 642 ÷16 = 40

rem = 2

40÷16 = 2

rem = 8

2 ÷16 = 0

rem = 2

reading bottom to top of remainders = (282)16

®    (555)10

to binary: = 555 ÷2 = 277

rem = 1

277 ÷2 = 138

rem = 1

138 ÷2 = 69

rem = 0

69 ÷2 = 34

rem = 1

34 ÷2 = 17

rem = 0

17 ÷2 = 8

rem = 1

8 ÷2 = 4

rem = 0

4 ÷2 = 2

rem = 0

2 ÷2 = 1

rem = 0

1 ÷2 = 0

rem = 1

reading bottom to top of remainders = (1000101011)2

to octal: = 555 ÷8 = 69

rem = 3

69 ÷8 = 8

rem = 5

8 ÷8 = 1

rem = 0

1 ÷8 = 0

rem =1

reading bottom to top of remainders = (1053)8

to hexadecimal: = 555 ÷16 = 34

rem = 11 (B)

34 ÷16 = 2

rem = 2

2 ÷16 = 0

rem = 2

reading bottom to top of remainders = (22B)16

4.      Convert each of the following hexadecimal numbers to binary, octal, and decimal formats.

®    (4FB2)16

to binary: (100 1111 1011 0010)2

to octal: (100 1111 1011 0010)2

= (47662)8

to decimal: = (4x163) + (15x162) + (11x161) + (2x160)

= (4x4096) + (15x256) + (11x16) + (2x1)

= 16384 + 3840 + 176 + 2

= (20402)10

®    (88BAE)16

to binary: (1000 1000 1011 1010 1110)2

to octal: (10 001 000 101 110 101 110)2

= (2105656)8

to decimal: = (8x164) + (8x163) + (11x162) + (10x161) + (14x160)

= (8x65536) + (8x4096) + (11x256) + (10x16) + (14x1)

= 16384 + 3840 +176 + 14

= (560046)10

®    (DC4)16

to binary: (1101 1100 0100)2

to octal: (110 111 000 100)2

= (6704)8

to decimal: = (13x162) + (12x161) + (4x160)

= (13x256) + (12x16) + (4x1)

= 3328 + 192 + 4

= (3524)10

Fractional numbers:

5.      Conversion from binary number system to decimal system

111.11₂            = 1 x 2² + 1 x 2¹+ 1 x 2⁰ + 1 x 2^-1 + 1 x 2^-2

                        =    4     +    2     +    1     +    1/2   +   ¼   =  7.75₁₀

Conversion from decimal number system to binary system

7.75₁₀= (?)₂

6.      Conversion of the integer part

7₁₀=( 111)₂

Conversion of the fractional part:

perform a repeated multiplication by 2 and extract the integer part of the result

            0.75 x 2 =1.50 Þextract 1

            0.5 x 2 = 1.0    Þ extract 1                                                    0.75₁₀ = 0.11₂

            0.0              Þ stop

             \  Combine the results from integer and fractional part, 7.75₁₀ = 111.11₂

7.      Convert (0.625)₁₀  to its binary form

Solution:          0.625 x 2 = 1.25          Þ extract 1

                        0.25 x 2 = 0.5 Þ extract 0

                        0.5 x 2 = 1.0    Þ extract 1

                        0.0       Þ stop

\ (0.625)₁₀ = (0.101)₂

8.      Convert (0.6)₁₀  to its binary form

0.6 x 2 = 1.2    Þ extract 1

0.2 x 2 = 0.4    Þ extract 0

0.4 x 2 = 0.8    Þ extract 0

0.8 x 2 = 1.6    Þ extract 1

0.6 x 2 =          Þ        ( same as 1^st one )       

\ (0.6)₁₀ = (0.1001 1001 1001 …)₂

9.      Convert (0.8125)₁₀  to its binary form

0.8125 x 2 = 1.625      Þ extract 1

 0.625 x 2 = 1.25         Þ extract 1

0.25 x 2 = 0.5 Þ extract 0

0.5 x 2 = 1.0    Þ extract 1

0.0       Þ stop

\ (0.8125)₁₀ = (0.1101)₂

 Credits-- Madhan

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First Semester Collection

  Hi CSe Future experts :P how are you ? i have collected all the important questions for  Ist semester Engineering. Though Ist year engineering is common for all department it will be important for both average student and expert students :--) Enjoy knowing. 

All the important Question are brought you by DMICSE blog :-) Dont forget to mention that.

1. TEchnical English I

2. Engineering Chemistry I

3. Engineering Physics I

4. Engineering Graphics I

5. Engineering Maths I (will be updated here soon)

6. COmputer Programming 

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ENGINEERING CHEMISTRY I

IMPORTANT PART B QUESTIONS

UNIT 1 POLYMER CHEMISTRY 

1. Distinguish between thermoplastics and thermosets
2. Distinguish between addition and condensation polymerisation
3. Free radical & ionic mechanism

4. Tg, tacticity , molecular mass, functionality of polymers
5. Various techniques of Polymerisation
6. Preparation properties & uses of Nylon & Epoxy resins

UNIT 2 CHEMICAL THERMODYNAMICS

Derive

1. Entropy change in isothermal expansion
& significance of G & A
2. Relation between ^G and ^H give significance & apps
3. Maxwells relations
4. Clausius clapeyron equation & its apps
5. Vant hoff isotherm & equation

UNIT 3 PHOTOCHEMISTRY & SPECTROSCOPY

1. Beer lamberts law (stmt, apps & limitations)

2. Photochemical decomposition of HI , HBr
3. Jablonski diagram
4. Chemiluminescence
5. UV Spectroscopy
6. IR Spectroscopy

UNIT 4 PHASE RULE & ALLOYS

1. Phase rule & terms involved in it

2. Water system
3. Pb-Ag system
4. Zn-Mg system
5. Heat treatment on alloys
6. Nichrome, stainless steel,brass, bronze

UNIT 5 NANOCHEMISTRY

1. Methods of preparation of nanoparticles

2. Apps of nanochemistry
3. Precipitation & thermolysis
4. Hydrothermal, electrodeposition, CVD, LASER Ablation techniques
5. Size dependent properties
6.CNT

Credits : Edson Frainler 

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TECHNICAL ENGLISH I

PART A TOPICS

1. Correct usage of language2. Sentence completion3. Prepositions4. Reference words5. Wh questions6. Simple tenses7. Past present future tenses8. Word formation9. Word expansion10. Sequence words11. Adjectives

12. Different forms & uses of words
13. Cause and effect
14. Changing one form to another
15. Prefixes and suffixes
16. Active and passive voice
17. If conditionals
18. Definition / extended definition
19. Use of imperatives
20. SVA

21. Compound words
22. Connotation
23. Adverbs
24. Single word substitutes
25. Abbreviations & acronyms
26. Synonyms & antonyms
27. Gerunds & infinitives
28. Spelling & punctuation
29. Modals & semi modals

PART B

1. Letter writing (formal & informal)

2. Itinerary
3. Poster interpretation
4. Poster making
5. Creative writing
6. E mail communication
7.Dialogue writing
8.Essay writing
9.Instructions
10.Recommendations
11.Process description

11.Biographical writing
12.Graphical interpretation
13.Paraphrasing
14.Paragraph writing
15.Channel conversion
16.Jumbled sentences, coherence & cohesion in writing
17.Comprehension
18.Autobiographical writing
19.Free writing
20.Note making

Credits : - Edson frainler

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ENGINEERING GRAPHICS

1.Parabola Ellipse Hyperbola Cycloid Involute(or)free hand sketching

2.Projection of points

(or)Projection of planes

3.Change of position(or)auxiliary plane method

4.True shape(or)Solid development

5.Isometric view/projection(or)persp


Credits :- Edson frainler

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ENGINEERING PHYSICS - I

                                              IMPORTANT PART B QUESTIONS

UNIT 1 CRYSTAL PHYSICS
1. Atomic radius & PF of SCC,FCC,BCC
2. HCP Structure
3. Diamond structure
4. Graphite structure
5. Bravais lattice systems
6. Czochralski bridgmann method

UNIT 2  PROPERTIES OF MATTER & THERMAL PHYSICS
1. Factors affecting elasticity
2. Bending moment of a beam
3. Cantilever
4. Rectilinear flow of heat
5. Lees disc method
6. Radial flow of heat
7. Expression of Thermal conductivity
8.Relation between 3 moduli

UNIT 3 QUANTUM PHYSICS
1. Plancks theory
2. Compton effect
3. G P Thomson expt & properties of matter
4. Schroedinger eqn
5. Particle in 1D Box
6. TEM
7. SEM
8. Distinguish between
(a) SEM & TEM
(b) Optical & Electrical Microscope

UNIT 4 ACOUSTICS AND ULTRASONICS
1.Sabines law
2.Factors affecting acoustics
3.Magnetostriction generator
4.Piezo electric generator
5.Properties of Ultrasonic waves
6.NDT
7.Inspection strategies
8.Scan modes and practice
9.Sonogram
learn 1st 4,6 question

UNIT 5 PHOTONICS AND FIBER OPTICS
1. Nd-YAG LASER
2. C02 LASER
3. Homo junction SC LASER
4. Hetero junction laser
5. Propagation of light in optical fiber
6. Types of optical fiber
7. Fibre optic comunication system
8. Fibre optic sensors

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Or

www.dmicse.tk

Published By :          >>>> ANbu<<<<<  (admin)   Credits :-  Edson Frainler (CSE department)

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