SCHEME - E
Sample Question Paper
Course Name: All Branches of Diploma in Engineering / Technology.
Course Code : AE/CD/CE/CH/CM/CO/CR/CS/CV/DE/ED/EE/EI/EJ/EN/EP/ET/EV/
EX/FC/FE/IC/IE/IF/IS/IU/ME/MH/MI/MU/PC/PG/PN/PS/PT
Semester : First
Subject : Basic Chemistry
Time : 3 Hours Marks: 100
Instructions: 1. All questions are compulsory.
2. Figures to the right indicate full marks.
3. Assume suitable data if necessary.
Q.1 Attempt any TEN of the following: 20 Marks
a) State Aufbau’s principle.
b) Differentiate between atomic number and atomic mass number.
c) Define electrolyte and non-electrolyte.
d) State Faraday’s first law of electrolysis.
e) State any two assumptions of Arrhenius theory of ionization.
f) Explain the terms gangue and flux.
g) Classify alloys with examples of each.
h) What is alnico? Write its composition.
i) Write the uses of asbestos as an insulator.
j) Name four synthetic rubbers
k) Define BOD of sewage.
l) List four particulates responsible for pollution.
Q.2 Attempt any FOUR of the following: 16 Marks
a) Write four assumptions of Bohr’s atomic theory.
b) Give four points of distinction between energy level and sub energy level.
c) Write orbital electronic configuration of following elements 13Al27, 20Ca40,
10Ne20, 16S32.
d) Describe the formation of MgO molecule with diagram and name the type of
bonding.
e) Explain the terms Isotopes & Isobars with examples.
f) Define degree of ionization. Explain factors affecting the degree of ionization.
12002
Q.3 Attempt any FOUR of the following: 16 Marks
a) Draw diagram and explain the construction of dry cell.
b) When the same amount of current was passed through the solutions of CuSO4
and ZnSO4 kept in series. 0.7 and 0.7164 Gms. Copper and Zinc was
deposited on Cathode respectively. If atomic weight of Copper is 63.5,
calculate the equivalent weight of Zinc.
c) Explain the mechanism of electrolysis of aqueous Copper sulphate solution
using Copper electrodes.
d) Justify the Following
( i ) Copper is electro refined when used for electrical purposes.
( ii ) The object, which is to be plated, is connected to cathode of an
electrolytic cell
( iii ) The colour of Copper sulphate solution fades when Platinum electrode
is used.
( iv ) The process of ionization is reversible.
e) Describe the process of silver plating of Iron spoon.
f) Name the methods of refining of metal. Explain any one of them.
Q.4 Attempt any FOUR of the following: 16 Marks
a) Define the terms: Ductility, Tensile Strength, Weldability, Machinability.
b) Write composition, properties and applications of Duralumin or Monel metal
c) Explain with labelled diagram the method used for concentration of sulphide
ore.
d) Distinguish between Calcinations and Roasting
e) Give characteristics of Insulating materials.
f) Explain the fusion method for the preparation of alloy.
Q.5 Attempt any FOUR of the following: 16 Marks
a) Write the principle of addition polymerization and give one example.
b) Describe the process of Vulcanization of natural rubber. Why is it necessary to
vulcanize rubber?
c) How air Pollution destructs Ozone layer? Explain Green House Effect.
d) Describe the bad effects of Chemical fertilizers on the underground water
e) Give Reasons:
(i) PVC is soft where as Backelite is hard.
(ii) Fillers are added in compounding of plastic.
f) State any two properties of rubber & write its related engineering Application.
Q.6 Attempt any FOUR of the following: 16 Marks
a) Write preparation, properties & applications of thermacole.
b) Explain Air pollution due to internal combustion engine. Give any one method
to control Pollution due to Auto Emission.
c) Explain causes of Water Pollution.
d) Write preventive measures of water pollution.
e) Give the role of forestation and green cover in preventive environmental
management (PEM).
f) What are the types of waste? Give the origin and effect of E-waste.
E – SCHEME
Sample Question Paper - I
Course Name : All Branches of Diploma in Engineering / Technology.
Course Code : AE/CD/CE/CH/CM/CO/CR/CS/CV/DE/ED/EE/EI/EJ/EN/EP/ET/EV/
EX/FC/FE/IC/IE/IF/IS/IU/ME/MH/MI/MU/PC/PG/PN/PS/PT
Semester : First
Subject : Basic Physics
Marks : 100 Time: 3 Hrs.
Instructions: 1) All the questions are compulsory.
2) Figures to the right indicate full marks.
3) Assume suitable additional data, if necessary.
4) Draw diagrams wherever necessary.
Q.1 Attempt any EIGHT of the following: 20 Marks
1. Define fundamental unit and derived unit.
2. Distinguish between elastic and plastic body.
3. Define surface tension and angle of contact.
4. State Newton’s law of viscosity.
5. “We do not receive heat from the Sun by conduction”, Give reason.
6. Define coefficient of thermal conductivity.
7. State laws of refraction.
8. State any two Engineering applications of LASER.
9. Define the term Frequency and Wavelength.
10. Draw a labeled diagram for photoelectric cell.
11. if a metal rod of length 50cm is heated upto 1000 C, its length increases by 2 mm.Find
coefficient of linear expansion of metal.
12. The vibrating length of air column is 18cm for a frequency 512 Hz .Find velocity of sound
Q.2 Attempt any FOUR of the following: 16 Marks
1. Define accuracy and precision. and differentiate between them
2. The length of an object measured by vernier caliper is 10+or-0.02cm, calculate the percentage error.
3. Describe the behavior of wire under continuously increasing load by using stress strain curve.
4. A weight exerts force of 100 N on a steel wire of cross-sectional area 0.02 cm2.Find the
extension produced if the length of wire is 5 m.
5. Define cohesive force, adhesive force, capillarity and angle of contact
6. Define Instrumental error, Systematic error and random error.
Correct the formula, Percentage error = Absolute error x 100
Q.3 Attempt any FOUR of the following: 16 Marks
1. Define deforming and restoring force. State the SI unit of stress.
2. Define ‘surface tension’. What is the effect of temperature and impurities on the surface tension
of liquid
3. What is Reynolds’s number? State its significance.
4. State the law of thermal conductivity of heat and define coefficient of thermal conductivity of
heat. State its SI unit.
5. A plate of nickel 4 mm thick has a temperature difference of 32 °C between its faces. It transmits
200 kcal / hr through an area of 5 cm 2. Calculate the thermal conductivity of nickel.
6. 1) State law of Thermal conductivity
2) Define coefficient of Thermal conductivity. State its S.I. unit.
Q.4 Attempt any FOUR of the following: 16 Marks
1. State Boyle’s law, Charle’s law and Gay Lussac’s law for gases. Define absolute zero
temperature.
2. A gas at 17°C and pressure of 60 cm of mercury has volume 2 liters. Find its volume at 27 °C
and pressure 70 cm of mercury.
3. Define three coefficients of expansions in solid. State relation between them.
4. A length of copper rod at 0°c is 90 cm. When heated upto 100°c , it increases by 0.14cm. Find
the coefficient of Linear expansion.
5. Define diffraction and polarization of light. State meaning of spectrum of light.
6. State the conditions constructive and destructive interference of light.
Q.5 Attempt any FOUR of the following: 16 Marks
1. Describe spontaneous and stimulated emission in case of LASER
2. Describe construction and working of He –Ne laser
3. State any four characteristics of longitudinal waves.
4. 1) Define Resonance.
2) Calculate the fundamental frequency of an air column in a tube of length 25 cm closed at one
end, if velocity of sound in air is 350 m/s. Neglect End correction.
5. State properties of LASER.
6. 1) Define the term free and forced vibration.
2) A body produces waves of wavelength 33 cm. What is the frequency, if the velocity of
propagation is 330m/sec2.
Q.6 Attempt any FOUR of the following: 16 Marks
1. State Planck’s hypothesis. Define work function of a metal.
2. State Einstein’s photoelectric equation. Determine the maximum kinetic energy of
photoelectrons ejected from the surface of metal by the light of wavelength 3000 A°. (Given:
Threshold wavelength of metal = 4500 A°)
3. State engineering, medical and scientific applications of X- rays.
4. 1) Describe continuous and characteristics spectra of X-rays.
2) What potential difference must be applied to an X-ray tube to produce X-rays of 0.5 A°
5. Describe construction and working of photoelectric cell.
6. Explain production of X-rays using Coolidge X-ray tube.
SCHEME - E
Sample Question Paper
Course Name : All Branches of Diploma in Engineering and Technology.
Course Code : AA/AE/CD/CE/CH/CM/CO/CR/CS/CV/DC/DE/ED/EE/EI/EJ/EN/EP/
ET/EV/EX/FC/FE/GT/IC/IE/IF/IS/IU/ME/MH/MI/ML/MU/PC/PG/
PN/PS/PT/SC/TC/TX
Semester : First
Subject Title : English
Time : 3 Hrs. Marks: 100
Instructions: 1] All the Questions are compulsory.
2] Figures to the right indicate Full marks.
Q.1 A] Answer any EIGHT of the following: [ 16 Marks]
1] How did Shaw come out of his nervousness?
2] What is unintelligible according to A.G.Gardiner?
3] What is essential for happiness, peace and prosperity?
4] Why did Herman stay with his mother?
5] What is the principle of Ruskin Bond’s book “Unto His Last”?
6] Who were Kiran Bedi’s Role Model?
7] Who inspired Kalpana Chawla?
8] Which areas did Kiran Bedi prefer to work in?
9] What is the technical definition of Fuel?
10] How were Mrs. Gamp’s curls?
Q.1 B] Answer any THREE of the following in 5-6 sentences each [12 Marks]
1] Describe the incident that took place in the town hall of Dover.
2] Explain in short, what Dr. Kalam meant by “A Nation Of Billion People”
3] Give an account of the encounter between the grandfather and the cops
4] How was the Singer sewing machine invented?
Q.2 A] Answer any ONE of the following in 150 words [08 Marks]
1] “Pioneers Don’t Have Role Models,” Explain giving two examples of your own.
2] Explain the impact of Fossil Fuels on the Environment.
3] Narrate Bedi’s contribution to society at large.
12004
Q.2 B] Give the meaning of any Four of the following words: [04 Marks]
Synthesis, congestion, advent, eradicate, emolument, pioneer.
Q.3] Read the passage carefully and answer the questions given below: [10 Marks]
A man or woman makes a direct contact with society in two ways: as a member of some
familial, professional or religious group, or as a member of a crowd. Groups are incapable of
being as moral and intelligent as the individuals who form them: a crowd is chaotic, has no
purpose of its own, and is capable of anything except intelligent action and realistic thinking.
Assembled in a crowd, people loose their powers of reasoning and their capacity for moral
choice. Their suggestibility is increased to the point where they cease to have any judgment
or a will of their own. They become very excitable; they loose all sense of individual or
collective responsibility. They are subjected to sudden excesses of rage, enthusiasm and
panic. In a word, a man in a crowd behaves as though he had swallowed a large dose of some
powerful intoxicant. He is a victim of what I have called ‘herd poisoning’. Herd poison is an
active, extravagant drug. The crowd intoxicated individual escapes from responsibility,
intelligence and morality into a kind of frantic, animal mindlessness.
1] Which idea is predominantly expressed in this passage? (01)
2] Mention the two ways in which a man or woman makes direct contact with society.
(02)
3] What is “Herd Poison”? (01)
4] How does the author describe the chaotic behavior of man? (01)
5] Mention two extreme behavioral patterns of man. (01)
6] With whom is a man in a crowd compared? Why? (02)
7] Give the meanings of the following words: Panic, Extravagant. (01)
8] They are subjected to sudden excess of rage. (Add a Question Tag) (01)
Q. 4 A] Do as directed. [Any Ten] [10 Marks]
1] Our classrooms are swept by the students. [Change the Voice]
2] She speaks too fast to be understood. [Remove Too.]
3] There is nothing better than a busy life. [Add a Question Tag]
4] Every Dark Cloud has a Silver Lining. [Make Negative.]
5] Hardly anyone ----- (wear) hats these days. They ---- (go) out of fashion.
(Write the correct form of verb)
6] What a beautiful night! (Make Assertive)
7] The Times Of India is more popular than any other newspaper. (Change the degree)
8] I will talk to him only if he apologies. [Rewrite using Unless]
9] She is ----- artist married to ----- European Engineer. (Insert appropriate articles)
10] The horse reared. The rider fell. (Join the sentence with an appropriate conjunction)
11] Wisdom is better than riches. [ Make Interrogative]
12] She is very beautiful. [ Make Exclamatory]
4.B] Insert Appropriate Prepositions. [06 Marks]
(Into, at, an, on, by, in, for, after, due)
1. We keep our hats and scarf’s --- the drawer.
2. He didn’t go out of the house ---- his illness.
3. At present our home is ---- London.
4. We poured the coffee --- the cups.
5. They moored the boat --- the Jetty.
6. I went to Mumbai ---- taxi.
Q.4.C] Change the following into Indirect speech [Any Two] [04 Marks]
1. He said, “Will you be there tomorrow? “
2. “Shall I lock the car or leave it unlocked?” He said.
3. Ram said, “I have just heard the news.”
Q.5.A] Develop into a well-organized paragraph [75 words] [Any One] [06 Marks]
1. An apple a day keeps the doctor away.
2. The importance of time management.
3. Fast food is bad for health.
Q.5.B. Classify the following words under the given heads.[Any Four] [04 Marks]
(Noun, Verb, Adverb, Adjective)
Impudence, Provincial, Disable, Wind-bag, Stair- case, Nickel.
Q.5.C. Correct the errors in the following sentences. [04 Marks]
1. One should keep his promise.
2. He is working as the Principal from 1998.
3. He is taller to me.
4. The train leave the station before I reached there.
Q.6.A] Give the Antonyms of the following words. [02 Marks]
Arrival, attract.
Q.6. B] Give the Synonyms for the following words. [02 Marks]
Polite, Lazy.
Q.6.C] Fill in the blanks with appropriate Homophones [04 Marks]
1. Hari was told to deposit the ----. (check, cheque)
2. Seema will be returning from Mumbai after a ---. (week, weak)
3. The ---- wheel of my car is punctured. (rear, rare)
4. He ___ with the blue pen ( write, right)
Q.6. D] Read the given text and using the contextual clues, supply the missing word
from the list provided. [04 Marks]
[Plantation, tropics, imagine, planter, overcome, temperate, farmers, delightful]
People who like bananas probably ------ that a banana ------ would be a very ----- place in
which to live, and so, it is for people who know and understand the vagaries of the -----. The
banana---must meet and ----- difficulties of which the ----- in the ----- regions have no idea.
E] Punctuate and rewrite the following sentences. [04 Marks]
1. good heavens no she replied that is impossible
2. good-bye she said see you later shall ring you up if I need anything
3. the teacher asked the students have you read the article effective communication
4. as soon as you find the hotel call me up and give me the address John said
Maharashtra State Board of Technical Education
Course: All Branches OF Engineering & Technology Course Code:
Semester: Second
Subject: Communication Skills Subject Code: 9005
Duration: 3 Hours Marks: 80
Instruction:
1) All questions are compulsory.
2) Illustrate your answers with neat sketches wherever necessary.
3) Figures to the right indicate full marks.
Q.1 Answer any eight of the following question in 4 to 5 sentence each (16 marks)
1. With one example explain the importance of communication in an organization?
2. Why is feedback necessary?
3. Selecting an application channel is judicious decision? Explain.
4. What role does ‘Encoding’ and ‘Decoding’ play in a Communication
process?
5. Name any two situations in which two ways communication occurs?
6. How can language act as a barrier to communication?
7. What is the importance of artifacts in communication?
8. Which are the possible situations where the students decode the message
outside the classroom?
9. ‘Informal Communication creates good relations between a boss and an
employee’. Explain giving one example.
10.What is the importance of graphs, charts, tables in communication?
11.“Vertical Communication” is a two – way Communication comment.
Q.2 Answer any three of the following in 10 to 12 sentence each: (12 marks)
a) How does the sender’s dress and appearance have an impact upon his /
Her communication?
b) Explain any five remedies which can be adapted to overcome the barriers to
effective communication?
c) “Classroom communication is a two way communication incorporating verbal as
well as non verbal communication.” Explain.
d) Distinguish between oral and written communication.
Q.3 Attempt any three of the following: (12 marks)
1. Your industry has not been able to meet the production target for the month
because of excessive casual leave of the workers. As a Manager, draft a
memorandum warning the workers that if this trend continues their bonus will be
reduced.
2. Write a circular letter for the company workers directing them to maintain
discipline, cleanliness and cordial social atmosphere among them for the
betterment of the company.
3. draft a notice for a company meetings.
4. as the Head of the Mechanical Department, devise a memo for the third year
students on the following points:
Subject: Poor attendance in practical.
Purpose: Warning of stern action.
Q.4 (A) Write a letter of application with resume for the post of (08 marks)
Jr. Engineer, to Raheja Builder , Gandhinagar, Bangalore.
Q.4 (B) Attempt ant one of the following: (08 Marks)
i. Write a report on the progress of your class assignment to be submitted to the
subject teacher. You may use the following points:
Topic of assignment – purpose – a brief plan information resources used –
whether notes were made – difficulties encountered – how you solved them –
time taken – final outcome estimated time and resources required for completion
– support needed from subject teacher.
ii. Write a Report on any accident in a factory. Suggest preventive measures
Q.5 Attempt any three of the following: (12 Marks)
1. Describe in about 35 – 40 word: Computer OR Television.
2. Explain the following with one example each:
a) Kinesics
b) Haptics
3. State the non – verbal codes used to show:
i. Nodding of head
ii. Tapping your feet
iii. raising of your index finger
iv. hand shake
4. State the importance of facial expression in effective communication.
Q.6 a) Attempt any one of the following. (06 marks)
i) Write a letter of complaint from Mr. M. P. Bannerji to M/s Das & co.
about certain defects in the goods supplied by them.
ii) Place an order to M/S Balaji Electricals asking them to supply Electrical
Appliances which you need very urgently.
Q.6 b) Attempt any one of the following. (06 marks)
i) Below mentioned are the incidences of fire and their causes that (06 marks)
took place in Mumbai. Devise a bar Graph for the years 2001,
2002, and 2003.
Causes 2001 2002 2003
a. Short Circuit 84 61 52
b. Smoking 50 61 52
c. Debus 22 31 18
d. Unknown 05 09 06
Total 161 145 138
ii) Five senses of perfection- seeing, hearing, touching, smelling and tasting are
studied in Psychology. Each one of these senses of perception has the
information absorbing capacity which is given below:
Seeing-75% Touching-6% Hearing-13%
Smelling – 3% Tasting-3%
Prepare a pie – chart indicating the above quantities in given percentages
Maharashtra State Board of Technical Education
Course: All Branches OF Engineering & Technology Course Code:
Semester: Second
Subject: Communication Skills Subject Code: 9005
Duration: 3 Hours Marks: 80
Instruction:
1) All questions are compulsory.
2) Illustrate your answers with neat sketches wherever necessary.
3) Figures to the right indicate full marks.
Q.1 Answer any eight of the following question in 4 to 5 sentence each (16 marks)
1. With one example explain the importance of communication in an organization?
2. Why is feedback necessary?
3. Selecting an application channel is judicious decision? Explain.
4. What role does ‘Encoding’ and ‘Decoding’ play in a Communication
process?
5. Name any two situations in which two ways communication occurs?
6. How can language act as a barrier to communication?
7. What is the importance of artifacts in communication?
8. Which are the possible situations where the students decode the message
outside the classroom?
9. ‘Informal Communication creates good relations between a boss and an
employee’. Explain giving one example.
10.What is the importance of graphs, charts, tables in communication?
11.“Vertical Communication” is a two – way Communication comment.
Q.2 Answer any three of the following in 10 to 12 sentence each: (12 marks)
a) How does the sender’s dress and appearance have an impact upon his /
Her communication?
b) Explain any five remedies which can be adapted to overcome the barriers to
effective communication?
c) “Classroom communication is a two way communication incorporating verbal as
well as non verbal communication.” Explain.
d) Distinguish between oral and written communication.
Q.3 Attempt any three of the following: (12 marks)
1. Your industry has not been able to meet the production target for the month
because of excessive casual leave of the workers. As a Manager, draft a
memorandum warning the workers that if this trend continues their bonus will be
reduced.
2. Write a circular letter for the company workers directing them to maintain
discipline, cleanliness and cordial social atmosphere among them for the
betterment of the company.
3. draft a notice for a company meetings.
4. as the Head of the Mechanical Department, devise a memo for the third year
students on the following points:
Subject: Poor attendance in practical.
Purpose: Warning of stern action.
Q.4 (A) Write a letter of application with resume for the post of (08 marks)
Jr. Engineer, to Raheja Builder , Gandhinagar, Bangalore.
Q.4 (B) Attempt ant one of the following: (08 Marks)
i. Write a report on the progress of your class assignment to be submitted to the
subject teacher. You may use the following points:
Topic of assignment – purpose – a brief plan information resources used –
whether notes were made – difficulties encountered – how you solved them –
time taken – final outcome estimated time and resources required for completion
– support needed from subject teacher.
ii. Write a Report on any accident in a factory. Suggest preventive measures
Q.5 Attempt any three of the following: (12 Marks)
1. Describe in about 35 – 40 word: Computer OR Television.
2. Explain the following with one example each:
a) Kinesics
b) Haptics
3. State the non – verbal codes used to show:
i. Nodding of head
ii. Tapping your feet
iii. raising of your index finger
iv. hand shake
4. State the importance of facial expression in effective communication.
Q.6 a) Attempt any one of the following. (06 marks)
i) Write a letter of complaint from Mr. M. P. Bannerji to M/s Das & co.
about certain defects in the goods supplied by them.
ii) Place an order to M/S Balaji Electricals asking them to supply Electrical
Appliances which you need very urgently.
Q.6 b) Attempt any one of the following. (06 marks)
i) Below mentioned are the incidences of fire and their causes that (06 marks)
took place in Mumbai. Devise a bar Graph for the years 2001,
2002, and 2003.
Causes 2001 2002 2003
a. Short Circuit 84 61 52
b. Smoking 50 61 52
c. Debus 22 31 18
d. Unknown 05 09 06
Total 161 145 138
ii) Five senses of perfection- seeing, hearing, touching, smelling and tasting are
studied in Psychology. Each one of these senses of perception has the
information absorbing capacity which is given below:
Seeing-75% Touching-6% Hearing-13%
Smelling – 3% Tasting-3%
Prepare a pie – chart indicating the above quantities in given percentages
Name of the Institute:
Course: Civil Engineering Group
Course Code: CE/CS/CR/CV
Semester : Second
Subject : Applied Science Subject Code : 9007
Duration : 2 Hour Marks : 40
Note: Marks obtained out of 40 should be converted to out of 20 Marks.
Instructions: - 1) All questions are Compulsory.
2) Draw diagrams wherever necessary
Section – I
Q-1 Attempt any four (8 marks)
1) State equations of motion modify these equations for body falling freely.
2) A meter scale is falling down without slipping from vertical position with 2rad/s.
Calculate acceleration with which it falls.
3) State Newton’s third law of motion. What do you think about cancellation of
action & reaction?
4) Define a) work b) impulse.
5) Each man pulls load at an angle 300 with horizontal with 2kn. Find work done in
15m displacement.
6) A railway moving with speed 72 km/hr stops after 2 minutes. Calculate
retardation.
9007
Q-2 Attempt any three. (12 marks)
1) A block of mass 20kg is pulled on a floor by horizontal rope through distance of
20m. If coefficient of friction between block & floor is 0.2, find work done.
2) Equation of SHM is y= 0.3 sin 2? ( t + ? /
Calculate 1) acceleration at distance 1meter, 2) phase of particle after 1second.
3) A body accelerating uniformly at 5red/s2 is found to be rotating at 90red/s at the
end of 12/sec. Determine initial velocity & angle turned during this internal.
4) A railway travels between stations 60km apart in 40 minutes. The train
accelerates uniformly & uniforms retardation. Find the maximum speed attained
during the journey. Plot VT diagram.
Section - II
Q. 1. Attempt any TWO of the following. 04 marks
a. Define hardness and name its type.
b. Name different types of impurities in water.
c. Give the function of gypsum in cement.
Q. 2. Attempt any TWO of the following. 08 marks
a. Explain the causes of scale & sludge formation in boiler.
b. Explain zeolite process for removal of total hardness of water.
c. Define PH. Write down the PH value of extremely acidic & basic solution.
Calculation PH of 2.5 ´ 10– 3 molar NaOH assuming complete ionization.
Q. 3. Attempt any TWO of the following. 08 marks
a. What are the chemical constituents of cement ?
b. Explain the process of setting and hardening of cement.
c. What is lime ? How it is prepared ? Write the uses of lime account.
Maharashtra State Board of Technical Education
Course Name: Electrical and Electronics Engineering Group
Course Code: EE/EP and ET/EJ/EN/EX/IE/IS/IC/DE/EV/MU/ IU/ED/EI
Semester :- Second
Subject: - Applied science Subject Code: - 9008
Duration: 3 Hours (For Both Sections together) Marks - 80
Section - I
Instructions: - 1) All questions are Compulsory.
2) Draw neat labeled diagrams wherever necessary.
3) Use of non-programmable calculator is allowed.
Q.1) Attempt any Eight of the following: (8x2=16)
1) State Coulomb’s inverse square law.
2) Define dielectric strength, breakdown potential.
3) State types of condenser.
4) State any two applications of optical fibres.
5) Define capacitance, state its SI unit.
6) Draw the configuration of an optical fibre.
7) Define valence band, Fermi energy.
8) Draw energy level diagram for Insulator & semiconductor.
9) A fibre has a core diameter of 4 mm & its core refractive index is 1.43. The
refractive index of cladding is 1.415. Determine Numerical aperture.
10) What is current density in pure semi conductor?
11) When germanium is doped with aluminum, is the result n-type or p-type
semiconductor? Give reason.
Q.2) Attempt any Three of the following: (3x4=12)
1) State any four properties of electric lines of force.
2) Derive an expression for potential due to point charge.
3) Find the equivalent capacitance for the combination of capacitors shown
below(see attachment below for diagram).
Where C1 = 12.0 mF, C2 = 5.30 mF, C3 = 4.50
mF
4) Two point charges 16 mc & 64 mc are
placed 3 m apart in air. Find the
position of point in between them
where intensity due to two charges is equal.
Q.3) Attempt any Three of the following: (3x4=12)
1) State formula to find potential of the earth.
A sphere of diameter 8 cm is placed in the medium of dielectric constant 1.2
and is given charge of 0.024 mc. Find potential at its surface.
2) What is Numerical aperture? Explain with the labeled diagram. State formula to
find numerical aperture.
3) Differentiate between intrinsic & extrinsic semiconductors.
4) State formula for
i) Capacity of parallel plate condenser
ii) Spherical condenser
iii) Cylindrical condenser
iv) Condensers in parallel
Section – II
Q. 4.A. Attempt any FOUR of the following: 08 Marks
1. What is a fuel cell ?
2. Write two applications of glass based optical fibres.
3. What are insulators ? Give their examples.
4. Define solder.
5. Why does the equivalent conductivity of a weak electrolyte increases with
dilution ?
Q. 4.B. Attempt any TWO of the following: 08 Marks
1. What is cementation ? How is it done ? Explain what is meant by
chromozing.
2. Give reason :
i. Impure metals corrodes faster than pure metal under identical
conditions.
ii. Iron corrodes faster than Aluminium, even though Iron is placed
below Al in the electrical series.
3. Write properties and applications of (a) Teflon, (b) Epoxy resins.
Q. 5. Attempt any THREE of the following: 12 Marks
1. Write briefly about (a) Primary Cells, (b) Secondary Cells.
2. How does fuel cell differ from battery ? What are the advantages and limitations
of fuel cell ?
3. What are the raw materials used in making ceramics ? Write properties
and applications of porcelain.
4. Explain the construction and functioning of a denial cell.
Q. 6. Attempt any THREE of the following: 12 Marks
1. Define metallurgy. What are the important ores of copper ?
2. Describe refining of Aluminium by electrolysis. Name the process.
3. i. Define specific conductivity. How is it related to equivalent conductivity
?
ii. What is buffer solution ? What chemicals can be used to make a buffer of pH
5 and pH 10.
4. Write composition, properties and applications of Babbitt metal.
Maharashtra State Board of Technical Education
Course Name: Mechanical Engineering Group & Plastic Engg.
Course Code: ME/PT/PG/AE/MH/FE/PS
Semester :- second
Subject: - Applied science Subject Code: - 9010
Duration: 3 Hours (For Both Sections together) Marks: 80
Section - I
Q1. Attempt any eight of the following: (16 marks)
a) Show with diagram VT diagram for
a) Uniform velocity motion
b ) Uniform retardation motion.
b) State three equations of motions in case of circular motion.
c) If velocity of particle in S.H.M. is V= ? (a^2-x^2)^1/2 calculate velocity of
Particle when it is at (I) mean position when it is at extreme position.
d) State Newton’s second law of motion with mathematical equation.
e) Define with unit work & power.
f) State work energy principle.
g) For surface disorders which of the following method is used & why?.
a)RT b) UT c) LPT
h) State principle of magnetic particle testing method.
i) IF the distance between 2 walls is 16.5 meters, is there a chance of hearing
echo if velocity of sound is considered as 330 m/s ?
j) State how focusing of sound affects the acoustical planning of auditorium?
k) State laws of illumination.
9010
Q 2. Attempt any three of the following: (12 marks)
distance of 500m. What is accn ?
2. Draw VT diagram in above case & calculate distance using VT diagram.
b) A flywheel rotating at 300 rpm slows down uniformly to 200rpm completing
200 revolutions retardations. Calculate a) Total time of retardation b) rate
of retardation.
c) A train weighing 19,60000N moves on the track at 16.67 m/s. after the
steam is shut off, it is brought to rest by applying breaks in 500m. Find
the force exerted by the break.
d) Name the NDT methods used in industry. For complete investigation of
material for surface & sub- surface disorders state the four factors on which
NDT methods can be selected.
Q 3 Attempt any three of the following: (12 marks)
a) Describe LPT with it’s a) principle of working b) set up c) sequential steps
d) advantages
b) Out of RT, UT, PT, MT, Thermography, which method is suitable for
investigating disorders in following cases:
1) To locate distance of outside crack from one of the surfaces of
Components.
2) To investigate internal defect like porosity in any type of material.
3) To detect sub-surface disorders up to 2.5mm depth in ferrous material.
4) to investigate in service investigations in pipes of heat exchangers.
c) Define a) loudness with its units b) intensity of sound with its units
Differentiate between loudness & intensity of sound.
c) State four factors affecting acoustical planning of buildings & state how
they are to be adjusted for good acoustics.
SECTION - II
Q. 4.A. Attempt any FOUR of the following 08 marks
1. How alloys are classified ?
2. Define heat treatment of steel.
3. What is the difference between the corrosion of aluminium and magnesium
due to atmosphere?
4. Define viscosity and viscosity index.
5. Name the materials used for formation of Teflon.
Q. 4.B. Attempt any TWO of the following 08 marks
1. Give chemical composition properties and uses of porcelain.
2. Explain extreme pressure lubrication.
3. Write four functions of lubricant used in gears.
Q. 5. Attempt any THREE of the following 12 marks
1. Distinguish between hardening and tempering.
2. Give composition properties and uses of phosphor bronze.
3. Describe tinning process for the protection of metal against corrosion.
4. Write chemical reactions taking place in the zone of reduction of blast
furnace.
Q. 6. Attempt any THREE of the following 12 marks
1. Explain the role of oxide film in atmospheric corrosion.
2. Compare between metal spraying and metal cladding.
3. Explain four factors affecting electrochemical corrosion.
4. Describe the process of dry corrosion.
ANNA UNIVERSITY- COMBATORE
B.E./ B.TECH. DEGREE EXAMINATION - JUNE 2009.
ELECTRICAL & ELECTONICS ENGG. - FOURTH SEMESTER
DIGITAL ELECTRONICS
PART-A
2. Briefly explain the streamlined method of converting binary to decimal number with example.
3. Give the Gray code for the binary number (111)2.
4. Subtract the following:0101 1011-0000 0101.
5. Draw a 1 to 16 demultiplexer circuit.
6. What is priority encoder.
7. Show the common-cathode type of seven segment indicator.
8. Design a half adder using NAND gates only.
9. Draw the truth table for a NOR gate RS flip flop.
10. Obtain D flip flop from JK flip flop.
11. Differentiate synchronous counter and Asynchronous counter.
12. Draw a modulo 6 counter.hat is saturation delay time? Explain.
13. Compare bipolar family transistors with MOS family transistors.
14. what is race condition? How can it be eliminated?
15. What is essential hazard? Give an example.
16. Compare volatile data storage with non volatile data storage.
17. How is combinational logic generated in FPGA.
18. What is a DRAM? How is it refreshed?
19. Draw a macrocell of PLD.
Answer any five. (5*12=60)
a) XY+X'Y'Z'+X'YZ'
b) X'Y'+YZ+X'YZ'
c) X'Y+YZ+Y'Z
2. Design a 3-bit parity generator circuit and the circuit of a 4-bit parity checker using even and odd parity bit.
a) PAL
b) FPGA
ANNA UNIVERSITY- COMBATORE
B.E./ B.TECH. DEGREE EXAMINATION - JUNE 2009.
ELECTRICAL & ELECTONICS ENGG. - FOURTH SEMESTER
GENERATION, TRANSMISSION & DISTRIBUTION
Answer all questions. (20*2=40)
2. What are the function of a control rod in a nuclear plant.
3. Which areas are most potential for wind power generation in India.
4. What are the different materials used for power generation using solar power.
5. What are the primary constants of transmission lines.
6. Write the expression for the loop inductance of a single phase two wire system.
7. What is ASCR conductor.
8. State the importance of skin and proximity effects.
9. Define regulation of a transmission line.
10. What is ferranti effect.
11. State the applications of power circle diagram.
12. List the factors affecting the corona loss.
13. What is safety factor of insulator.
14. Compare and contrast: UG cabling and cabling done using transmission lines.
15. What is the purpose of a metallic sheath in a cable.
16. What is grading of cables. state its importance.
17. List the various drawbacks of a radial system.
18. Define concentrated load. How does it act on AC distribution.
19. Why HVDC lines do not require any reactive power compensation.
20. Which is the first HVDC link in the world.
Answer any five. (5*12=60)
ANNA UNIVERSITY- COMBATORE
B.E./ B.TECH. DEGREE EXAMINATION - JUNE 2009.
ELECTRICAL & ELECTONICS ENGG. - FOURTH SEMESTER
NUMERICAL METHODS
PART-A
Answer all questions. (20*2=40)
2. To which forms are the augmental matrices transform in the Gauss Jordan and Gauss Elimination method.
3. Solve the following system 2x+y=3, 7x-3y=4 by Gauss elimination method.
4. Write down the iterative formula for vN in Newton’s method.
5. Which methods are used for finding the polynomial if the intervals are unequal.
6. If f(x)=1/x find the divided difference f(a,b).
7. State Lagrange’s interpolation formula.
8. Write the Newton’s forward interpolation formula for equal intervals.
9. Write the Gaussian quardrature 3 point formula.
10. What are the orders of the errors in Trapezoidal and Simpson’s rules of numerical integration.
11. State Simpson’s 3/8th rule formula.
12. Evaluate ?01e-x2dx by dividing the range of integration into four equal parts using Simpson’s 1/3rd rule.
13. State Taylor series method formula.
14. Given dy/dx=(y-x)/(y+x) with y=1 for x=0. Find y(0.1) by Euler’s method.
15. State fourth order Runge-kutta formula.
16. Write the Adam’s Predictor and Corrector formula.
17. Write the diagonal five point formula for solving Laplace equation.
18. Name the two methods that you can use to solve one dimensional heat equation.
19. Solve by finite difference method for y’’=y, y(0)=-1, y(2)=15 taking h=1.
20. Write the explicit formula to solve one dimensional heat equation for ?=1/2.
Answer any five. (5*12=60)
X 0 1 2
Y -5 -4 3
b) From the following table, find f(6) using Newton’s interpolation formula (6)
X 1 2 7 8
f(x) 1 5 5 4
23. a) The population of certain town is given below . Find the rate of growth of the population in 1971. (6)
Year:x 1931 1941 1951 1961 1971
Population in thousands 40.62 60.80 79.95 103.56 132.65
b) Evaluate ?p0 sinx dx by dividing the range into ten equal parts using Trapeziodal rule. (6)
b) Using Milne’s method find y(0.4) given dy/dx=xy+y2, y(0)=1, y(0.1)=1.1167, y(0.2)=1.2767, y(0.3)=1.5023. (6)
b) Solve y’’-xy=0 given y(0)=-1, y(1)=2 by finite difference method taking h=1/3.
b) Using Lagrange’s formula for the interpolation find the values of f(4) from the following table.
(6)
X 0 2 3 6
f(x) -4 2 14 158
27. a) Find the interpolating polynomial for y from the following data using Newton’s forward formula
(6)
X 4 6 8 10
Y 1 3 8 16
b) Solve Uxx+Uyy=0 for the following square mesh with boundary conditions as shown below. (6) A 1 2 B
1 U1 U2 2
2 U3 U4 1
D 2 1 C
b) Solve the following system of equations
20x+y=2z=17, 3x+20y-z=-18, 2x-3y+20z=25, by using Gauss Jacobi method. (6)
ANNA UNIVERSITY- COMBATORE
B.E./ B.TECH. DEGREE EXAMINATION - JUNE 2009.
ELECTRICAL & ELECTONICS ENGG. - FOURTH SEMESTER
OBJECT ORIENTED PROGRAMMING
PART-A
1. What is object oriented programming ? How is it different from the procedure oriented programming?
2. How is dynamic binding achieved in c++.
3. With an example explain an abstract data type.
4. What is the purpose of malloc and free operators.
5. what is the default access mode for class members.
6. State the mechanism of passing objects to a function.
7. How does a constructor differ from a normal function.
8. State why a destructor is used when developing an application in c++.
9. What are the limitations of multiple inheritance.
10. Justify the need for virtual functions in c++.
11. What are the advantages of abstract classes.
12. List the operators that cannot be overloaded in C++.
13. Compare the important features of c++ and Java.
14. Define JVM.
15. List the four integer types supported by Java.
16. Distinguish between overloading and overriding.
17. List the four categories of visibility addressed by Java for class members.
18. What is the major difference between interfaces and classes.
19. What is a package.
20. Discuss the package access protection
PART-B
Answer any five. (5*12=60)
an example. (12)
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