DME

Diploma in Mechanical Engineering

III SEMESTER(C-09)

Scheme : C-09Subject Title : English-IISubject Code : M-301

Bifurcation of Syllabus for Unit Tests for Semester III ofScheme C 09

Unit Test I : Lessons 1 – 17 Unit Test II : Lessons 18 - 37 (Oral Examination )Procedure to examine the spoken skills of the students

Unit test II may be made into an oral examination conducted by the concerned teacher for 20 marks.

As the test cannot be conducted for all the students of different branches on a single day, flexi-time may be allowed.

The marks scored by a student in the internals would be an average of Unit Test 1 and Unit Test 2

Guidelines for conducting Oral examination for Unit Test 2 It should be conducted in the last month of the Semester It should be as transparent as possible Pair (role play); group (discussion, debate etc.)activities may be

given for evaluation Alternatively questions based on activities in the textbook may also

be prepared and asked for evaluation The following aspects may be considered while awarding marks

- Intelligibility- Fluency- Structural Accuracy- Appropriate Vocabulary

Diploma ExaminationEnglish (Common) Semester III

301 Unit Test 1

Time: 1 hour Maximum Marks: 20 Part A

Answer all questions. All questions carry equal marks. 4 x 3 = 121. Make four meaningful sentences using words / phrases from the table:

I likedislike

studyingcakestomatoes her haircutlizardcricket

because it is

interestingtastyunhealthyfashionabletastelessuglythrilling

2. Fill in the blanks using words given below

1. 2. I was _______ with my performance in he test. 2.. My friend was ______ when she slipped and fell down. 3. The football team was ________________ when it won the match.4. The tragic ending of the novel made her _________.5. The rainy day made her ________________ .6. A surprise party made him very ___________ .

3. Change the following into yes/no questions 1. Ravi must go again.2. She can understand everything3. It was very late.4. We are going tomorrow morning.5. Ganesh can speak Hindi.6. You must come back today.

4. Write what food you have regularly and state why you do so.Part B

Answer of the following. 2 x 4 = 85. Describe your daily routine.6. Make notes for the following passage.

The human brain, however, is very good in other directions. It has imagination. It can suppose and wonder. It can make intelligent guesses. Most of all, it is creative. It can think up new and sometimes startling ways of doing or understanding things.

happy gloomy embarrassed sad delighted thrilled

C-09 Curriculum (Common-302)Bifurcation of Syllabus for Unit tests

Engineering Mathematics –II

Unit Test-I

Chapter No

Topic Periods Short Questions

Essay Questions

1 IntegrationMethods of Integration

18 2 1

2 Definite Integrals and Applications

14 1 2

Total 32 03 03

Unit Test-IIChapter

NoTopic Periods Short

QuestionsEssay

Questions

3 Numerical Integration

03 - 1

4 Differential Equations

25 3 2

Total 28 03 03

STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, A.P.MODEL PAPER FOR UNIT TEST –I

SCHEME : C-09SUBJECT: ENGINEERING MATHEMATICS-II

SUBJECT CODE: 302 (COMMON)Time: 1 Hour Max. Marks: 20

Part-ANote: Answer all the questions. Each question carries two marks. 3x2 = 6 Marks.

1. Evaluate

2. Evaluate

3. Evaluate

Part-BNote: Answer any two questions. Each question carries seven marks. 2x7=14 Marks.

4. Evaluate

5. Find the R.M.S value of between the limits x= 1 to x = e.

6. Integrate: w.r.t x .

STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, A.P.MODEL PAPER FOR UNIT TEST –I I

SCHEME : C-09SUBJECT: ENGINEERING MATHEMATICS-II

SUBJECT CODE: 302 (COMMON)Time: 1 Hour Max. Marks: 20

Part-ANote: Answer all the questions. Each question carries two marks. 3x2 = 6 Marks.

1. Solve:

2. Solve:

3. Solve:

Part-BNote: Answer any two questions. Each question carries seven marks. 2x7=14 Marks.4. Solve

5. Solve .

6. Evaluate using Simpson’s 1/3 rd rule by dividing the interval (1,5)

into four equal parts.

C-09 D.M.E - III SEMESTERM-303, ENGINEERING MECHANICS

UNIT TEST –I

Chapter No

Topic Periods Short Question

s

Essay Questions

1 Statics & Dynamics 202 2

2 Friction 15 11

UNIT TEST –II

Chapter No

Topic Periods Short Question

s

Essay Questions

3 Simple machines 141 1

4Geometrical properties of Sections

161 1

5Basic Link Mechanism

101 1

BOARD DIPLOMA EXAMINATION(C-09)MODEL PAPER UNIT TEST - I

M-303 Engineering Mechanics

Time:1.00 Hour Marks: 20 PART-A (3x2=06 marks)

Instructions : Answer all questions 1) State parallelogram law of forces2) State Newton’s laws of motion3) Define Angle of friction and angle of Repose

PART-B Instructions : Answer any TWO questions. Each question carries 07 marks.

4) The following forces act at a pointa) 25 N inclined at 350 towards North of East b) 25 N towards Northc) 30 N towards North-West d) 50N inclined at 200 towards South of West Find the magnitude and direction of resultant force.

5) A burglar’s car had a start with an acceleration of 1.8m/s2 .Apolice vigilant party came after 5 seconds and continued to chase the burglars car with a uniform velocity of 18m/s. Find the time in which the police van can overtake the car.

6) A load of 20KN is lifted by a screw jack. Mean diameter of thread is 75mm , pitch of screw thread is 10mm .Coefficient of friction for screw and bearing surfaces is 0.075,the effective mean radius of bearing surface is 50mm.Determine the torque required to raise the load.

BOARD DIPLOMA EXAMINATION(C-09)

MODEL PAPER , UNIT TEST – IIM-303 Engineering Mechanics

Time:1.00 Hour marks: 20

PART-A (3x2=06 marks) Instructions : Answer all questions

1) Explain the terms a) ideal machine b) self locking machine.2) Define centre of gravity and radius of gyration.3) List the inversions of a four bar chain mechanism.


4) An effort of 300 N is required to lift 10KN and an effort of 600 N is required to lift

20KN using a simple machine .Find the load lifted using an effort of 150 N on that machine.

5) An I Section made up of top flange, 80mm x 20mm, Web 120mm x 20 mm and bottom flange 100mm x 20 mm.Find out Ixx and Iyy of the section.

6) A) Differentiate Machine with Mechanism.b) Explain pantograph with the help of line diagram.

ELECTRICAL ENGG. & BASIC ELECTRONICS

Subject Title : Electrical Engg. & Basic ElectronicsSubject Code : M-304

UNIT TEST - 1

S. No

Major Topics No. of Periods

Weightage of Marks

Short Answer

Questions

Essay Type Questions

1. Basic Concepts & Electro magnetic Induction

15 9 01 1

2. D.C. Machines 15 9 01 1 3. A.C. Fundamentals &

A.C. Machines ( upto 3.7)

8 9 01 1

TIME SCHEDULE

S. No

Major Topics No. of Periods

Weightage of Marks

Short Answer

Questions

Essay Type Questions

3. A.C. Fundamentals & A.C. Machines (from 3.8)

169 01 1

4. Storage Batteries 05 4 - ½5. Semi Conductors 08 5 01 1/26. Electrical measuring

instruments & Safety procedures

08 9 01 01

M-304, ELECTRICAL ENGG. & BASIC ELECTRONICS

Unit-Test-ITime-1Hr Max Marks: 20

Part-AI. Answer all the questions (3x2=6m)

1. Define Ohms law 2. List out the parts of D.C Generators3. Define the terms a) time period b) frequency

Part-BII. Answer any two questions (2x7=14m)

1. (a)State Faraday laws of Electro magnetic Induction (4) (b) State Lenz law (3)2. Draw a neat sketch of 3-point starter and explain it 3. An R-L series circuit has a resistance of 10 ohms and inductace 100 milli henry is connected across 230v , 50Hz A.C supply calculate Impedance, Current and power factor.

M-304, ELECTRICAL ENGG. & BASIC ELECTRONICS Unit-Test-II

Time-1Hr Max Marks: 20

Part-AI. Answer all the questions (3x2=6m)

1. Write the relations between Line and phase values of voltage & currents in a 3 phase star connected system2. Distinguish between Intrinsic and Extrinsic semi-conductor3. State the importance of earthing of electrical equipment

Part-BII. Answer any two questions (2x7=14m)

1. Draw a neat sketch of Star Delta starter 2. (a)Write the differences between primary and secondary cells (b) write the differences between P type and N type semiconductor3. Explain the construction and working of PMMC instrument

C-09 D.M.E - III SEMESTERM-305, THERMAL ENGINEERING-I

UNIT TEST –I

Chapter No


Essay Questions

1 Fundamental of thermo-dynamics

09 1 1

2 Laws of perfect gases

04 1 --

3 Thermodynamic processes in gases

18 1 1

4 Fuels and combustion(Objective upto 4.9)

6 -- 1

UNIT TEST –II

Chapter No


Essay Questions

4 Fuels and combustion(Objective from 4.10 )

4 1 --

5 Air Standard Cycles 12 -- 1

6 Properties of Steam 12 1 1

7 Fundamentals of Refrigeration and air conditioning

101 1

MODEL PAPER UNIT TEST - IM-305 Thermal Engineering - I ( C – 09 )

Time:1.00 Hour Marks: 20

PART-A (3x2=06 marks) Instructions : Answer all questions 7) Define Thermodynamic System.

8) An ideal gas has a mass of 1.5 kg and occupies 2.5 m3 while at a temperatureof 270

C and a pressure of 200 KN/m2. Determine the gas constant.

9) Represent the following processes on P-V diagram

( i ) Isothermal Process ( ii ) Isobaric Process

PART- Instructions : Answer any TWO questions. Each question carries 07

marks. ( 2 x 7 = 14 )

4 ) A piston – cylinder containing air expands at a constant pressure of 150 KPa from a

temperature of 285 K to a temperature of 550 K. The mass of air is 0.05 kg. Find the

heat transfer, work transfer and change in internal energy during the process. Assume

Cp = 1.01 KJ/kg K and Cv = 0.72 KJ/ kg K.

5 ) One kilogram of air is compressed adiabatically so that its pressure increases from 1

bar to 10 bar. The work of 200 KJ is done on the air. Calculate the initial and final

temperature of air. Assume Cv = 0.718KJ/kgK for air and ratio of specific heats 1.4.

6 ) Describe with a neat diagram, the working of a Bomb Calorimeter.

MODEL PAPER UNIT TEST – IIM-305 Thermal Engineering ( C – 09 )

Time:1.00 Hour Marks: 20

PART-A ( 3 x 2 = 6 marks) Instructions : Answer all questions

1) Define Combustion. What are the products of combustion?

2) Define a) Latent Heat b ) Sensible Heat

3) Define Refrigeration.

PART-B Instructions : Answer any TWO questions. Each question carries 07 marks. ( 2 x 7

= 14 Marks )

4) An engine working on Carnot cycle has maximum and minimum temperature of

9270C and 1270C. Determine its efficiency and the heat supply per minute when the

output is 36KW.

5) 2 kg of steam at a pressure of 800 KPa and 0.8 dry is heated at constant pressure

until the final temperature is 2500C. Determine using steam tables.

a) the heat added b ) change in internal energy

Assume Cp for superheated steam as 2.1 KJ/kgK.

6) An ice plant produces 10 tons of ice per day of 24 hours from water at 250C.COP of

the plant is given as 3.5. Calculate the capacity of the compressor if the overall

efficiency of the plant is 80%. Assume specific heat of water as 4.19 KJ/kgK and the

latent heat of solidfication of water at 00C as 335KJ/kg.

C-09 D.M.E - III SEMESTERM-306, MANUFACTURING TECHNOLOGY-1

UNIT TEST –I

Chapter No


Essay Questions

1 Lathe & Lathe Work 22 1 2

2 Shaper, Slotter, Planner

14 2 1

UNIT TEST –II

Chapter No


Essay Questions

3 Broaching Machine 04 1

4 Cutting Fluids, Coolants and Lubricants

06 1/2

5Welding

15 1 11/2

6 Metrology 14 1 1


M-306 Manufacturing Technology - ITime:1.00 Hour Marks: 20

PART-A (3 x 2 = 06 marks) Instructions : Answer all questions

1) Write the specifications of Engine Lathe.

2) Write the working principle of a Shaper.

3) Write any four differences between shaper and planner

Part – B Instructions : Answer any TWO questions. Each question carries 07 marks.

4) Explain the thread cutting operation on Lathe machine with the help of sketch.

5) Describe the construction of a planning machine with a neat sketch.

6) a)write the differences between engine lathe and capstan lathe (4 marks)

b) Give detailed classification of Lathe machines. (3 marks)

BOARD DIPLOMA EXAMINATION(C-09)MODEL PAPER UNIT TEST - II

M-306 Manufacturing Technology - I

Time:1.00 Hour Marks: 20 PART-A (3 x 2 = 06 marks)

Instructions : Answer all questions 1) List the applications of Broaching operation.

2) What is the difference between Pressure welding and Fusion welding?

3) List the various types of measuring instruments.


4) Explain the principle of arc welding with the aid of a sketch.

5) Describe the construction and working of the Reed type Mechanical comparator.

6) a) List and explain the causes of various welding defects.

b) What are the various factors to be considered while selecting a cutting fluid?

IV SEMESTER(C-09)

Scheme : C-09Subject Title : English-IIISubject Code : M- 401Bifurcation of Syllabus for Unit Tests for Semester IV of Scheme C 09 Unit Test I : Lessons 38 - 54 Unit II : Lessons 55 - 72 (Oral Examination) Rationale for Oral Examination:

2. The thrust of the book is on imparting spoken skills. 3. Evaluation has to be geared towards spoken skills4. Since evaluation by and large determines the classroom procedure,

testing spoken skills will ensure the teaching /learning process in the classroom, thus fulfilling the objective of the Course.

Procedure to examine the spoken skills of the students Unit test II may be made into an oral examination conducted by the

concerned teacher for 20 marks. As the test cannot be conducted for all the students of different

branches on a single day, flexi-time may be allowed. The marks scored by a student in the internals would be an

average of Unit Test 1 and Unit Test 2

Guidelines for conducting Oral examination for Unit Test 2 It should be conducted in the last month of the Semester It should be as transparent as possible Pair (role play); group (discussion, debate etc.)activities may be

given for evaluation Alternatively questions based on activities in the textbook may also

be prepared and asked for evaluation The following aspects may be considered while awarding marks

- Intelligibility- Fluency- Structural Accuracy- Appropriate Vocabulary

Diploma ExaminationEnglish (Common) Semester IV

401 Unit Test - I

MODEL QUESTION PAPERTime: 1 hour Maximum Marks: 20

Part AInstructions: Answer all questions. Each question carries three marks. 4 x 3 = 12

3. Write three meaningful sentences using the following table:Activities When you were a child Now

PlayWatchVisitReadEnjoy

4. Fill in the blanks with appropriate forms of verbs given in the brackets: 1 x 3 = 3 m

i) If Ravi _______ (study) well, he will get distinction. ii) If I read a good English newspaper, my communication skills ______ (develop) iii) If they _________ (take) a taxi, they will reach Hyderabad before 5 O’clock

3. Read the following statements and state whether you agree or disagree with them 1 x 3 = 3m

i) Ragging should be banned in educational institutions.ii) We should make a sincere effort to protect our environment.iii) Educated Indians should go abroad for studies and employment.

4. Write three or four sentences about your habits, hobbies, likes and dislikes 3m

Part BInstructions: Answer all questions. Each question carries four marks.

2 x 4 = 85. Write a brief letter to your parents about your first day in the college.6. Study the following table and write a short paragraph using information provided.

Marks scored by Chaitanya in intermediate 2nd year exam.SUBJECT MARKS SCORED

English 92Sanskrit 97

Mathematics 150Physics 57

Chemistry 56Total 312

DME (C-09) IV-SemesterSubject Code: M-402 Subject Title : Manufacturing Technology-II

UNIT TEST-I

S. No. Major Topics No. ofPeriods

SHORT ESSAY

1 Milling & Gear Making 20 1 22 Grinding and finishing

processes15 2 1

UNIT TEST -II

S No Topic Periods Short Questions

Essay Questions

3 Modern Machining Process 10 1

4 Plastic processing 08 1

5 Press Tools, Jigs and Fixtures

17 2 1

6 Jig Boring 05 1


M-402 Manufacturing Technology - IITime:1.00 Hour Marks: 20

PART-A (3 x 2 = 06 marks) Instructions : Answer all questions

7) List various milling operations.

8) State the factors for selecting the grinding wheels

9) State the principle of metal spraying.


10) Explain the Principle of working of a Milling machine with neat sketch.

11) Explain different indexing methods.

6) Explain the working of cylindrical grinding machine with neat sketch


M-402 Manufacturing Technology - II

Time:1.00 Hour Marks: 20 PART-A (3 x 2 = 06 marks)

Instructions : Answer all questions 2) Define Jig and Fixture.

2) List various types of clamps used in Jigs and fixtures

6) Write the principle of Jig boring machine


7) Explain the principle of Working of ultrasonic machining..

8) A) Write the principle of extruding an d casting

B) Write the engineering applications of plastics.

6) a) Explain the construction details of power press.

b) List various types of fixtures used and explain any two of them

STRENGTH OF MATERIALS

Subject Code :M-403 Subject Title :Strength of Materials

UNIT TEST –I

Chapter No Major Topics

No. of Period

s

Short answer

Questions

Essay typeQuestions

1 Simple Stresses and Strain

18 1 11/2

2 Strain energy 08 1 -

3 Shear Force and bending moments

( Up to 3.4 b of Course Contents)

9 1 11/2

UNIT TEST –II


No. of Period

s

Short answer

Questions

Essay typeQuestions

3 Shear Force and bending moments

( from 3.4 C of Course Contents )

8 1

4 Theory of simple bending and

Deflection of beams

13 1 1

5 Torsion in shafts and springs

13 1 1

6 Thin cylinders 06 1

BOARD DIPLOMA EXAMINATION(C-05)DME-II YEAR (FOURTH SEMESTER)M-403 STRENGTH OF MATERIALS

UNIT TEST-I TIME-1 Hour Marks-20

PART-AAnswer all questions. Each question carries two marks. 3x2 = 6

1. Define the following stresses and state their effect a) Tensile stress b) compressive stress2. Calculate the strain energy stored in a bar of 2000mm long, 50mm wide and 40mm thick, when it is subjected to a tensile load of 58860 N. Take E = 1.96x105 N/mm2.3. List out types of loading applied on beams.

PART-BAnswer any two questions. Each question carries seven marks. 2x7 =14

4. A compound bar 0.75 m long consists of a mild steel bar 25 mm diameter enclosed by a brass tube, 25 mm internal diameter and35mm external diameter, the two material being rigidly joined together. Determine stress in each material under a tensile load of 35 KN.

Take Es=210GN/m²,Eb= 95GN/m²

5.a) A mild steel rod of 3m long having a cross-sectional area 5cm2 is subjected to an axial pull of 100kN. If ‘E’ for steel = 2 x 1011N/m2, find (i) the stress (ii) the strain (iii) elongation of the rod .

b) Draw SF and BM diagrams for a beam of Cantilever type subjected to uniformly distributed load

6. A Cantilever beam 4m long has point loads of 40KN, 50KN and 10KN at a distance of 0.5m, 3m and 4m respectively from fixed end. It also has UDL of 60 KN/m for a distance of 2m and starting from the point of 1m, from the fixed. Draw

SF and BM diagrams.

UNIT TEST –II

BOARD DIPLOMA EXAMINATION(C-05)DME-II YEAR (FOURTH SEMESTER)M-403 STRENGTH OF MATERIALS

UNIT TEST-IITIME-1 Hour Marks-20

PART-AAnswer all questions. Each question carries two marks. 3x2 = 6

1. List out the assumptions made in theory of simple bending.2. Define the following terms related to helical spring a) Spring index b) Spring stiffness c) Solid length d)Free length3.Write any four Functions of Shaft.

PART-BAnswer any two questions. Each question carries seven marks. 2x7 =14

4. A Simply Supported beam 4m long has point loads of 30KN, 40KN and 10KN at a distance of 1.5m, 3m and 4m respectively from left end. It also has UDL of 60 KN/m for a distance of 1.5m and from starting point of the left end. Draw SF and BM diagrams.

5. A Simply Supported beam 3m long and of rectangular cross-section carries a UDL of 20kN/m over its entire length. If the maximum stress induced is 125 N/mm2, find the dimensions of the beam. Assume depth of section as equal to twice the width.

6 A closely coiled helical spring of round steel wire 5mm in diameter having 12 complete coils of 50mm mean diameter is subjected to an axial load of 100N. Find the axial deflection of the spring. Take C=80 GN/m2.

C - 09 D.M.E - IV SEMESTERM - 404, ENGINEERING MATERIALS

UNIT TEST – I

Chapter No


Essay Questions

1

Introduction Mechanical properties of engineering materials,

04

1

2 Testing of materials 081

3 Structure of Materials 081

4.Production of Iron and Steel

101 1

5.

Iron Carbon Equilibrium Diagram(up to 5.2 of course contents)

5

1

UNIT TEST – II

Chapter No


Essay Questions

5.

Iron Carbon Equilibrium Diagram(From 5.3 of course contents)

7

1

6. Heat treatment of Steel 121 1

7.Ferrous, Non Ferrous Metals and their alloys

141 1

8. Powder Metallurgy 071


UNIT TEST – I : MODEL QUESTION PAPER Marks : 20 .

PART-A

Answer all questions 3x2=6

1) Explain in brief Fatigue Strength , Creep

2) What is the Charge used in Blast Furnace?

3) Draw cooling curve for pure metal with slow cooling

PART- BAnswer any two questions 2 x 7=14

4) Discuss the various factors which influence the grain growth and effect of grain

size on Properties

5 Explain the difference between Basic Bessemer and Acid Bessemer

process.

6) Name five important mechanical tests which will give valuable information

about metals and alloys.


UNIT TEST – II MODEL QUESTION PAPER

Marks : 20 .PART-A


1) What is the purpose of heat treatment?

2) List the advantages of alloy steel over plain carbon steel

3) Write any two advantages and limitations of Powder metallurgy

PART- B

Answer any two questions 2 x 7=14

4) Explain with a sketch how the Spheroidic Annealing is done

5) Discuss composition, properties and applications of low carbon, medium

carbon high carbon steel?

6 Define the terms related to Iron –Carbon system

a) Ferrite b) peralite c) - iron

THERMAL ENGINEERING-II

Subject Code : M-405 Subject Title : Thermal Engineering -II

Periods/Week: 05 Periods per Semester : 75

UNIT TEST –I


No. of Period

s

Short answer

Questions

Essay typeQuestions

1Internal Combustion

Engines15 2 1

2 Air Compressors 08 1

3Gas Turbines & Jet

Propulsion8 1

4

Elements of Automobile Engineering(up to 4.6)

05 1

UNIT TEST –II


No. of Period

s

Short answer

Questions

Essay typeQuestions

4

Elements of Automobile Engineering

(From 4.7 to 4.14)

05 1

5 Steam Boilers 12 1 16 Steam Nozzles 08 17 Steam Turbines 14 1 1

C-09 D.M.E - IV SEMESTER M-405, THERMAL ENGINEERING-IIUNIT TEST –I

MODEL QUESTION PAPER

Marks : 20 .PART-A

Answer all questions 3x2=61. Write any four differences of C I and S I Engines.

2. List different methods of cooling I C Engines.

3. List various components of an automobile

PART – B

Answer any two questions 2 X 7 = 14

4 Explain with line diagram the working of a single Stage reciprocating air compressor.

5 Compare the battery ignition system with magneto ignition system.

6 Represent cycle of operation of a closed cycle type gas turbine on P-V and T-s

diagrams

C-09 D.M.E - IV SEMESTER M-405, THERMAL ENGINEERING-IIUNIT TEST –II MODEL QUESTION PAPER

Marks : 20 .PART-A


1 . Write the functions of propeller shaft and how it is perform its function2 What are differences between fire tube boilers and water tube boilers ?

3. State the necessity of governing a turbine

PART – B

Answer any two questions 2 X 7 = 14

4. During a test on a boiler the following data were collected

Steam pressure 9.487bar gauge

Steam condition dry and saturated

Feed water temperature 350c

Rate of evaporation 12kg/kg of coal

Calorific value of fuel 37.5X103kJ/kg

Determine the a)thermal efficiency

a) Factor of evaporation

Equivalent evaporation

5. Dry saturated steam enters a convergent nozzle at a pressure of 10 bar and

with a velocity of 90m/s. the exit pressure is 5 bar and steam leaves the

nozzle at a velocity of 435m/s. The friction loss is 10kJ/kg of steam flow.

Determine a) Final condition b) Area at exit if the inlet area is 1260mm2

6. a). Classify of Turbines with examples?

b). Derive formula for work done of a Turbine

Hydraulics & Fluid power systems

Subject Code : M-406 Subject Title : Hydraulics & Fluid power systems

UNIT TEST –I


No. of Period

s

Short answer

Questions

Essay typeQuestions

1 Properties of Fluids 051

2 Flow of Liquids 101 1

3 Flow through pipes 101 1

4 Impact of jets 101

UNIT TEST –II


No. of Period

s

Short answer

Questions

Essay typeQuestions

5 Water Turbines 151 1

6 Pumps 101/2 1

7 Oil power Hydraulics 081

8 Pneumatics 051

9Hydro-pneumatic systems

021/2

BOARD DIPLOMA EXAMINATION(C-09)DME- Fourth Semester

M-406- Hydraulics & Fluid power systems

UNIT TEST- I(1st set)

TIME-1 Hour Marks-20

PART-A

Answer all questions. Each question carries two marks. 3x2 = 6

1. Define intensity of pressure and state its units.2. State Bernoulli’s equation and its application in hydraulics. 3. Write Darcy's formula for loss of head due to friction in Pipes and mention

what for each letter stands and their units in the equation

PART-B

Answer any two questions. Each question carries seven marks. 2x7 =14

1. Find a pipe of 400m long has a slope of 1 in 75. It tapers from 1.5m diameter at higher end to 0.75m at the lower end. The discharge of water through the pipe is 6200 lit/min. If the pressure at the higher end is 1 bar, find the pressure at the lower end.

2. a) Explain graphically 1) Hydraulic gradient line 2) Total energy line

b) Find the loss of head due to friction in a pipe of 1 m diameter 15 km long. The velocity if water in the pipe is 1 m/sec.coefficient of friction as 0.005. 3. A horizontal jet of water 15 cm diameter moving with a velocity of 20 m/s strikes the fixed vertical plate. Calculate the force exerted by the jet.

BOARD DIPLOMA EXAMINATION(C-09)DME- IV semester

M-406-Hydraulics & Hydraulic Machinery

UNIT TEST-II(1st set)

TIME-1 Hour Marks-20

PART-A

Answer all questions. Each question carries two marks. 3x2 = 6

1. Draw a layout of Hydro Electric Power Plant and name the parts?2. . Draw hydraulic power system circuit3. a)What is cavitation?

b) Name any two Applications of combined Air and oil system.

PART-B

Answer any two questions. Each question carries seven marks. 2x7 =14

1. A Pelton wheel is supplied with 180 lit/sec of water under a head of 300 m. The mean peripheral velocity of the bucket is 20 m /sec. If the outlet tip angle of the bucket is 160°.Find out the power developed and efficiency?

2. Explain the working principle of a centrifugal pump with a neat sketch?3. Principle of working of Pneumatic clamp

V SEMESTER(C-05)

DME (C-05) V-Semester

Subject Title : Refrigeration & Air conditioningSubject Code : M-501 UNIT TEST-I

Chapter No.

Major Topics No. ofPeriods

SHORT ESSAY

1. Fundamentals of Refrigeration & Air Refrigeration

10 1

2. Vapour compression & Vapour absorption Refrigeration Systems

20 1 2

3. Refrigerants, Refrigeration equipment & Applications(Objectives up to 3.10)

14 1 1

UNIT TEST -II

Chapter No.


Essay Questions

3. Refrigerants, Refrigeration equipment & Applications(Objectives from 3.11 to 3.15)

06 -- 1/2

4. Fundamentals of A/c & A/c Equipment

10 1 1/2

5. Psychometry, Cooling & Heating loads

20 1 11/2

6. Applications of A/c, Servicing and maintenance of Refrigeration and A/c equipment

10 1 1/2


M-501 Refrigeration and Air Conditioning


Instructions : Answer all questions 10) Define the term Refrigeration11) What are the basic components of a vapour compression Refrigeration system.12) What are desirable properties of refrigerants.


4) In an ammonia plant, temperature range is from -100C to 200C. Find C.O.P if vapour after compression is (a) 0.95 dry (b) dry and (c) super heated to 350C at same pressure.

t0C hf Hs Фf Фs

-100C 200C

154293.8

14501479.8

0.82961.3285

5.7555.374

5) Explain the principle of operation of an Electrolux refrigerator.

7) Explain the working principle of an air cooled condenser.


M-501 Refrigeration and Air Conditioning


Instructions : Answer all questions 1) What are ducts? How do you classify the ducts?2) Define psychrometry?3) What are the components of air conditioning system


4) (a) How do you classify the condensers. (b) Explain working principle of an air cooler

5) (a) Define the terms i) Dry Bulb Temperature ii) Wet Bulb Temperature (b) Explain the principles of winter air conditioning system.

6) How many tons of refrigeration are required to cool 120 m3 of air per minute at 300 DBT and 60% RH to 200 DBT and 80% RH..


Subject Title : Design of Machine ElementsSubject Code : M-502 UNIT TEST-I

Chapter No.


SHORT ESSAY

1. Introduction 04 1 --

2. Bolts, Nuts & Screws 12 1 1

3. Shafts, Keys & Couplings 22 1 11/2

4. Belts, chain drives & Gears(Objectives up to 4.5)

07 -- 1/2

UNIT TEST -II

Chapter No.


Essay Questions

4. Belts, chain drives & Gears 15 1 1

5. Cams 12 1 1

6 Fly wheels & Governors 18 1 1


M-502 Design of Machine Elements


Instructions : Answer all questions 1) Define allowable stress and factor of safety.2) How a screwthread is designated? Give examples.3) What is key? Where a feather key is employed.


4) A cylinder cover of a steam engine is secured by 12 studs, the cylinder is 305 mm diameter and has a steam pressure of 1.2 N/mm2 gauge. Calculate the diameter of the studs, assuming the permissible stress intensity to be 30 N/mm2

5) A solid circular shaft is used to transmit a torque of 9.6 Nm. The angle of twist over a length of 2 m is 20. Estimate the required dia of shaft and shear stress induced in the material. Take G = 0.8 x 105 N/mm2.

1) (a) State the advantages and disadvantages of flexible couplings over a rigid couplings.

(b) What are advantages of chain drives compared with belt drive?


M-502 Design of Machine Elements


Instructions : Answer all questions 1) What are the advantages of silent chain over a roller chain2) Explain the “Cam” mechanism. State its applications.3) State the function of “Governer”.


4) A ser of spur wheels are arranged as follows: “A” drives “B”, B and C is a compounded wheel and “C” drives “D”, when TA = 25, TB = 50, TC = 35 and TD = 70 Teeth. If A rotates at 300 rpm find rpm of wheel D.

5) Draw the cam profile for a knife edge follower with simple harmonic motion whose a) out stroke is with maximum displacement of 180 mm during 1800 of cam rotation b) Return stroke is for the next 1500 of cam rotation and c) Dwell during remaining 300 of cam rotation. The axis of the follower passes through the cam shaft axis. The minimum radius of cam is 150 mm.

6) Find the diameter and cross-section of a suitable rim having width twice the thickness so that the centrifugal stress does not exceed 6 MN/m2. The density of rim material is 7260 kg/m3. Assume the speed of fly wheel as 500 rpm and it has a mass

150kg.


Subject Title : Fluid Power SystemsSubject Code : M-503 UNIT TEST-I


SHORT ESSAY

1 Oil Power Hydraulics 30 2 2

2 Pneumatics(Objectives up to 2.10)

15 1 1

UNIT TEST -II


Essay Questions

2 Pneumatics(Objectives from2.11to2.20)

20 2 1

3 Hydro - Pneumatic systems 15 1 1

4 Hydro – Pneumatic measurements

10 -- 1

BOARD DIPLOMA EXAMINATION(C-09)MODEL PAPER UNIT TEST - IM-503 Fluid Power Systems


Instructions : Answer all questions 1) What are the merits and demerits of Hydraulic System2) Mention the working principle of Hydraulic intensifier.3) Mention elements of pneumatic circuit.


4) Explain the working of Hydraulic Jack with neat sketch.

5) Name different types of pumps used in Hydraulic System and explain any one of them.

6) Explain pneumatic lubricator with neat sketch.

BOARD DIPLOMA EXAMINATION(C-09)MODEL PAPER UNIT TEST - IIM-503 Fluid Power Systems


Instructions : Answer all questions 4) What are the advantages of pneumatic system5) What are the applications of Air cylinders6) What are the applications of Hydro pneumatic systems


4) Draw and explain pneumatic safety circuit for protection against over load.

5) Explain uses of air as a cushion for Hydraulic system

6) Explain the ultrasonic flow meter with neat sketch.


Subject Title : :Energy Sources and Power Plant Engineering

Subject Code : M-504 UNIT TEST-I


SHORT ESSAY

1 Introduction of Renewal Sources of Energy

04 1 --

2 Solar and Wind Energy 20 1 11/2

3 Fuel Cells and MHD Generator 10 -- 1

4 Bio and Tidal Energy(Objectives up to 4.6)

10 1 1/2

UNIT TEST -II


Essay Questions

4 Bio and Tidal Energy(Objectives from 4.7to4.15)

10 1 1/2

5 Thermal and Nuclear Power Plants

26 1 2

6 Environmental Pollution 10 1 1/2


M-504 Energy Sources & Power Plant Engineering


Instructions : Answer all questions 7) What are the types of Non-conventional energy? Give examples.8) State the advantages of wind energy and its draw backs.9) What is tidal energy state its advantages and limitations.


4) Draw the neat sketch of solar cooker and explain its working.

5) Explain MHD plant with neat sketch

6) (a) What are the factors to be considered while installing the mind mill (b) State the merits of fuel cells.


M-504 Energy Sources & Power Plant Engineering


Instructions : Answer all questions 1) What is Biogas? How it is utilised2) What is boiler draught? 3) What is a pollutant..


4) (a) What are the advantages and limitations of tidal energy (b) What is the impact of pollutants on environment

5) Draw a neat sketch of ejector condenser and explain its working principle

6) Explain the working principle of fast breeder reactor stating its advantages and demerits.


Subject Title : Manufacturing Technology-II

Subject Code :M-505 UNIT TEST-I


SHORT ESSAY

1 Milling & Gear Making 22 1 22 Grinding and finishing

processes18 1 1

3 Modern Machining Process(Objectives up to 3.3)

04 1 --

UNIT TEST -II


Essay Questions

3 Modern Machining Process(Objectives from 3.4to3.8)

08 1

4 Plastic processing 10 1 1/2

5 Press Tools, Jigs and Fixtures

20 1 1

6 Jig Boring 08 1 1/2




Instructions : Answer all questions 1) What is Gang Milling2) Mention the Indian standard system of grinding? 3) State advantages of Non conventional machining over conventional machining


4) Explain Horizontal milling machine with the help of line diagram

5) Mention various milling operations and explain any one of them.

6) Explain cylindrical centre less grinding method with help of neat sketch.




Instructions : Answer all questions 4) State the differences between thermo plastics and thermo setting plastics.5) State the requirement of good clamping system6) List various methods of locating the position of hole


4) Explain ultrasonic machining method with help of neat sketch.

5) List different types of dies and explain any one with neat sketch

6) (a) Draw neat sketch of screw type injection moulding machine and label the parts. (b) Explain button method of locating hole

VI SEMESTER(C-05)

DME (C-05) VI-Semester

Subject Title : Industrial Management And Entrepreneurship


Chapter No.


SHORT ESSAY

1. Principles and functions of Management

6 1

2. Organisation structure & organisational behaviour

18 1 11/2

3 Production Management 10 1

4. Materials Management 12 1 1/2

UNIT TEST -II

Chapter No.


Essay Questions

5. Marketing ,Sales & Feasibility study

10 1 1/2

6. Industrial legislation & safety

12 1 1

7. Introduction to ISO 9000 & T.Q.M.

10 1/2

8 Role of Enterprenuer and Enterprenuerial Development

12 1 1


M-601 Industrial Management and Entrepreneurship


Instructions : Answer all questions 13) Define scientific management.14) What are the draw backs of a functional organisation?15) What is inventory? List out types of inventory.


4) Explain “functional organization” with the help of chart?.

5) (a) Define leadership? And explain about autocratic leadership. (b) What are objectives of purchasing?

2) Draw the net work for the following project.a) Identify the critical pathb) Find the project Durationc) Indicate slack on each event.

Activity 0 - 1 1 - 3 1 - 2 2 - 3 1 - 4 3 - 4 4 – 5Duration (Days)

3 16 6 8 10 5 3


M-601 Industrial Management and Entrepreneurship


Instructions : Answer all questions 4) Define marketing and selling?5) What are the causes of Accidents?6) What is the role of “DIC” in the entrepreneurial development.


4) (a) What are the uses of market survey. (b) What is TQM? State its principles of TQM.

5) State the provisions of “Minimum wages Act”.

6) What are the essential characteristics of an entrepreneur?


Subject Title : Industrial Engg


Chapter No.


SHORT ESSAY

1. Work Study

a) Method Study 18 1 11/2

b)Work Measurement 18 1 1

2. Job Evaluation & Merit Rating(objectives upto 2.5)

08 1 1/2

UNIT TEST -II

Chapter No.


Essay Questions

2. Job Evaluation & Merit Rating(objectives from 2.6 to 2.9)

07 1

3. Wage & Incentive Systems 16 1 1

4. Inspection and S.Q.C. 24 1 2


M-602 Industrial Engineering


Instructions : Answer all questions 4) Define work study.5) State any four objectives of work measurement.6) What are the objectives of Job evaluation?


4) Explain the method study procedure

5) Explain about cyclograph and chrono cyclo graph

3) Define merit rating? What are its merits and demerits.


M-602 Industrial Engineering


Instructions : Answer all questions 10) What are the objectives of merit rating11) State any four Non financial incentives.12) What are the advantages of S.Q.C


4) Explain about straight piece rate system with advantages and disadvantages.

5) What are floor and centralized inspection systems? Write their advantages and disadvantages.

6) Construct a control chart for mean and Range (R) assuming sample size 5, No. of

samples 15 on graph sheet, comment on the state of control

Sample No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Mean 1 1.2 1.2 1.6 1.8 -1 -1 1.6 1 1.2 1.6 -1 0.2 -0.8 -0.6

Range(R) 0.3 0.5 0.2 0.4 0.3 0.3 0.6 0.7 0.4 0.5 0.4 0.3 0.2 0.5 0.4


Subject Title : Estimating and Costing


Chapter No.


SHORT ESSAY

1. Elements of costing 20 1 11/2

2. Fundamentals of estimation 10 1 1/2

3 Estimation of weights of materials and Machining times (Objectives upto 3.4)

12 1 1

UNIT TEST -II

Chapter No.


Essay Questions

3 Estimation of weights of materials and Machining times (Objectives from 3.5 to 3.7)

12 1/2

4. Estimation of fabrication cost

12 1 1

5. Estimation of forging cost 12 1 1

6. Estimation of foundry cost 12 1 1/2


M-603 Estimating and Costing


Instructions : Answer all questions 13) What do you mean by direct material cost? Give examples.14) State four objectives of estimating.15) How do you find out cost of material.


4) The catalogue price of a machine is Rs. 6,00,000 and the discount allowed to distribution is 15% of the catalogue price. It was found that the selling on cost was half the factory cost. The material cost, labour cost and over head charges are in the ratio of 1:3:2, if the material cost is Rs. 40,000. What profit is made by the factory on each machine.

5) (a) What are various causes of depreciation? Explain any one in brief. (b) Explain the qualities of an estimator.

6) An isometric view of a product is shown in the fig below. What will be the weight of the material required to produce it. If the density of material is 7.8 gm/cc and 25% of the finished material is wasted during processing

60Ф 90Ф

35 35 70


M-603 Estimating and Costing


Instructions : Answer all questions 16) List out different types of Welding Joints17) What are the various elements of forging cost?18) What is pattern.


4) (a) List out the steps involved in calculating the volume of a component. (b) Why the allowances are provided on pattern surfaces.

5) Estimate the time required for making a container open on one side of size 0.4 x 0.4 x 1 m height is to be fabricated from 6 mm thick plates. Welding is to be done on one side only.

6) Determine the length of 12 mm diameter and required to forge a ring of 75 mm inner diameter as shown below.

12 mm 75 mm 12 mm


Subject Title : AUTOMOBILE ENGINEERING


Chapter No.


SHORT ESSAY

1 Introduction & Chassis Construction

14 1 1

2 Transmission & Clutches 22 1 11/2

3 Propeller shaft and rear axle

(objectives up to 3.4)

08 1 1/2

UNIT TEST -II

Chapter No.


Essay Questions

3 Propeller shaft and rear axle

(objectives from,3.5 to 3.8)

08 1/2

4 Suspension system 12 1 1/2

5 Front axle and steering 16 1 1

6 Brakes 10 1 1


MODEL PAPER UNIT TEST - IM-604 Automobile Engineering


Instructions : Answer all questions 19) List out various types of chasis.20) What are the functions of clutch?21) What is the function of a propeller shaft.


4) Explain the construction of frame.

5) Explain the working of constant mesh gear box with neat line diagram.

6) (a) List out various types of clutches and explain any one of them. (b) List out the various functions of differential.


MODEL PAPER UNIT TEST - IIM-604 Automobile Engineering


Instructions : Answer all questions 7) What are the factors to be considered in suspension system8) What is meant by Toe-in and Toe-out 9) List out various types of Brakes.


4) (a) Differentiate between semi-floating and fully floating rear axle. (b) What is the classification of rubber springs and explain any two of them.

5) Explain Ackerman steering gear mechanism.

6) Explain the working of “air brakes” with line diagram.


Subject Title : CAD / CAM


Chapter No.


SHORT ESSAY

1.Computer Aided Design and Manufacturing

201 11/2

2.CNC Machines and their components

242 11/2

UNIT TEST -II

Chapter No.


Essay Questions

3. CNC Part Programming 221 11/2

4.CIMS & Flexible Manufacturing Systems

141 1

5. Robotics 101 1/2


M-605 CAD/CAM


Instructions : Answer all questions 10) Define CAD, CAM11) Mention the advantage of CNC Machines? 12) List various types of CNC Spindle drives


4) Write and explain various types of computer input devices

5) Mention and explain components of CNC Systems.

6) Explain a) Automatic tool changer b) Graphic work station


M-605 CAD/CAM


Instructions : Answer all questions 1) What is sub routine.2) Define CIMS, and mention its advantages3) Mention the applications of “Robots”


4) Write CNC part programming for the following component size of raw material 20Ф x 45 mm

18Ф 15Ф

25 20 5) Explain CNC CMM with neat sketch

6) (a) Compare manual and computer aided programming. (b) Mention the classification of Robots.

Date post:	27-Nov-2014
Category:	Documents
Upload:	gowri-sankar
View:	218 times
Download:	0 times

DME

Documents