EE6401 Question Bank Electrical Machines 1

EE6401 Question Bank Electrical Machines 1 Regulation 2013 Anna University

Sample EE6401 Question Bank:

1. Mention the difference between core and shell type transformers.
In core type , the windings surround the core considerably and in shell type the core surround the winding.

2. What is the purpose of laminating the core in a transformers ? (April –98) To reduce eddy current loss.

3. Give the emf equation of a transformer and define each term (April –99)
Emf induced in primary coil E1 = 4.44 fΦ mN1 volt
Emf induced in secondary coil E2 = 4.44fΦ mN2 volt
Where f is the frequency of AC input
Φ m is the maximum value of flux in the core
N1, N2 are the number of primary and secondary turns.

4. Does the transformer draw any current when secondary is open ? Why ?
Yes,it (primary) will draw the current from the main supply in order to magnetise the core and to supply iron and copper losses on no load . There will not be any current in the secondary since secondary is open.

5. Define voltage regulation of a transformer (April –98)
When a transformer is loaded with a constant primary voltage , the secondary voltage decreases for lagging power factor load, and increases for leading pf load because of its internal resistance and leakage reactance . The change in secondary terminal voltage from
no load to full load expressed as a percentage of no load or full load voltage is termed as regulation.
% regulation down = (0V2-V2) x 100/0V2
% regulation up = (0V2-V2) x 100/V2

6. Full load copper loss in a transformer is 1600 watts. What will be the loss at half load ?

If x is the ratio of actual load to full load then copper loss = x2(full load copper loss).Here Wc = (0.5)2 x 1600 = 400 watts

Subject Name	Electrical Machines 1
Subject Code	EE6401
Regulation	2013
File detail	PDF of Question Bank

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ME6404 Question Bank THERMAL ENGINEERING

ME6404 Question Bank THERMAL ENGINEERING Question Bank Regulation 2013 Anna University pdf free download.

Sample ME6404 Question Bank:

1. Classify IC engine according to cycle of lubrication system and field of application.

2. Types of lubrication system

3. List the various components of IC engines.

4. Name the basic thermodynamic cycles of the two types of internal combustion reciprocating engines.

5. Mention the important requites of liner material.

6. State the purpose of providing piston in IC engines.

7. Define the terms as applied to reciprocating I.C. engines “Mean effective pressure” and “Compression ratio”.

8. What is meant by highest useful compression ratio?

9. What are the types of piston rings?

10. What is the use of connecting rod?

11. What is the use of flywheel?

12. Which factor increases detonation in IC engines?

13. Which factor do not have much influence in detonation?

14. For maximum power, air-fuel ratio should be?

15. For maximum economy, air-fuel ratio should be?

16. For maximum power we need is?

17. Cold starting required?

18. Knock in SI engine can be reduced by

19. In 2-stroke engines wich two strokes are eliminated?

20. Which efficiency will reduce if fresh charge filled is reduced?

21. SFC decreases as power capacity of engine?

22. What about the NOx emission when the compression ratio decreases?

23. Methods used for preparing bio-diesel?

24. Nox, Sox, HC can be determined by ?

25. What is blending of fuel?

26. Is hydrogen fuel is storable?

27. The following results refer to a test on a petrol engine Indicated power = 30 Kw, Brake power = 26 Kw, Engine speed = 1000 rpm Fuel brake power/ hour = 0.35 kg Calorific value of fuel = 43900kj/kg .Calculate the indicated Thermal efficiency, the brake Thermal efficiency and Mechanical efficiency

28. A four cylinder 2 stroke cycle petrol engine develops 23.5 kw brake power at 2500 rpm. The mean effective pressure on each piston in 8. 5 bar and mechanical efficiency in 85%

29. Explain full pressure lubrication system I.C Engine.

30. Explain the water cooling system in I.C Engine.

Subject Name	THERMAL ENGINEERING
Subject code	ME6404
Regulation	2013

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GE6351 Question Bank ENVIRONMENTAL SCIENCE AND ENGINEERING

GE6351 Question Bank ENVIRONMENTAL SCIENCE AND ENGINEERING Regulation 2013 Anna University

Sample GE6351 Question Bank:

1 What are food chain and food web?

2. Define the terms producers and consumers.

3. Define Genetic diversity and species diversity.

4. What is Biomes? How a biome does differs from an ecosystem.

5. What are the characteristics of the desert ecosystems?

6. Define Estuaries.

7. Give the bio-geographical classification of!ndia.

8. Distinguish between primary succession and secondary succession.

9. What are endangered and endemic species?

10. Name the four ecosystems.

11 Enumerate the human activities which destroy the biodiversity.

12. Mention the various subdivisions ofthe biotic and abiotic compounds of the Environment.

13. How are the laws ofthermodynamics related to energy flow?

14. What is red data book?

15. What are the advantages ofln-situ and Ex-situ conservation biodiversity?

16. What is ecosystem?

17 What are tropical levels?

18 What is meant by keystone species?

19. Define biodiversity.

20.Define bio-magnification of DDT

21.Define ecological succession.

22.Define producers, consumers and decomposers

23 What are autotrophic and heterotrophic components of an ecosystem?

24. What are point and non-point sources of water pollution?

25. What are the sources of soil pollution?

26. State the role of an individual in the prevention of pollution.

27. Defme disasters.

28. When does a sound causes noise pollution.

29. What are the types of solid waste?

30. What is soil pollution?

31. Defme photochemical wastes.

32. Defme hazardous wastes.

33. Defme noise pollution.

34. Write any four major water pollutants.

35. Defme floods.

36. What is a smog? Give the types and effects of smog

37.Mention the physical and chemical parameters of quality of water.

38.Give the methods by which heavy metals are removed by absorption.

39.What are the 3 R’s in solid waste management?

40. What is meant by BOD and COD.

Subject Name	ENVIRONMENTAL SCIENCE AND ENGINEERING
Subject code	GE6351
Regulation	2013

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ME6403 Question Bank Engineering Materials and Metallurgy

ME6403 Question Bank Engineering Materials and Metallurgy regulation 2013 Anna University

Sample ME6403 Question Bank:

1. When will interstitial solid solution occur?

2. What is isomorphous?

3. How is plain carbon steels classified? Define an alloy?

4. Classify the alloys.

5. What are solid solutions?

6. Differentiate substitutional and interstitial solid solutions with examples.

7. What are intermediate phases?

8. Define the term phase.

9. What is an equilibrium phase diagram?

10.Define eutectic reactions?

11.Define peritectic reactions?

12.Define eutectoid reactions?

13.Define peritectoid reactions?

14.Distinguish eutectic and eutectoid transformations.

15.Distinguish peritectic and peritectoid transformations.

16.What are the uses of grey cast iron?

17.What are chilled cast irons?

18.Why nodular cast iron is called ductile cast iron?

19.What are the advantages of alloy steels over plain carbon steels?

20.What is the effect of additions of chromium on the characteristics of steel?

21. Show the different steel and cast iron region in the iron carbon diagram with its microstructure and write down its composition, mechanical properties and application.

22. Draw a neat sketch and explain TTT diagram.

23. Draw Iron carbon diagram and label all fields?

24. Draw a typical equilibrium diagram for an isomorphous system and explain the equilibrium cooling of any one alloy from the above diagram.

25. Draw a typical equilibrium diagram for a eutectic type of system with limited solid solubility and explain its important features.

26. Explain the Peritectic temperature using a binary equilibrium peritectic phase diagram

27. What is the effect of small quantities of
(a) Sulphur
(b) manganese
(c) phosphorus
(d) Silicon upon the properties of steel?

28. Explain the method of plotting an equilibrium diagram and derive the lever rule as applied to equilibrium diagram.

29. Discuss the effect of Silicon, Manganese elements in cast iron.

30.Describe the composition, microstructure, properties and applications of grey cast iron.

Subject Name	Engineering Materials and Metallurgy
Subject Code	ME6403
Regulation	2013
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ME6402 question bank Manufacturing Technology 2

ME6402 question bank Manufacturing Technology 2 Regulation 2013 Anna University

Sample ME6402 question bank:

1. Distinguish between Capstan lathe from Turret lathe.

2. How do you classify tool wear?

3. Define Tool Life.

4. State the different methods of taper turning.

5. How do you classify milling cutters?

6. Define Broaching.

7. State the applications of honing and lapping finishing methods.

8. Compare gear forming with gear generation method.

9. State the limitations of CNC machine tools.

10. What is a ‘Canned’ cycle?

11. (a) (i) Discuss the various types of chips produced during metal machining. (Marks 6)

(ii)State the parameters that influence the life of tool and discuss. (Marks 10)
Or

(b) (i) What is meant by Orthogonal Cutting and Oblique Cutting? (Marks 6)

(ii)Explain ‘Merchant force circle’ along with assumptions. (Marks 10)

12. (a) (i) Discuss the main parts of a turret lathe. (Marks 6)
(ii) Explain the working of Swiss type auto lathe with a neat
sketch. (10)
Or

(b) (i) What is meant by ‘tool layout’ of a turret lathe? (Marks 6)
(ii) Name the various lathe accessories. How does a four jaw chuck differ from a three jaw chuck?
(Marks 10)

13. (a) (i) What are the operations performed on a milling machine? (Marks 6)
(ii) Explain different types of drilling machines with their specific features. (Marks 10)

14. (a) (i) Give the specification of grinding wheel. (Marks 6)
(ii) What is meant by dressing and truing of grinding wheel? (Marks
10) Or
(b) (i) List the advantages and limitations of gear shaping. (Marks 6) (ii)
Explain the principle of gear hobbing with neat sketches. (Marks 10)

15. (a) (i) Under what conditions of production the numerically controlled machine tools are
employed? (Marks 6)

(ii) Explain the various elements of NC machine with closed loop control system.
(Marks 10) Or
(b) (i) Explain the main difference between point to point and continuous path type of numerically controlled machine tools. (Marks 6)

 

Subject Name	Manufacturing Technology 2
Subject Code	Me6402
Regulation	2013
File	PDF

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ME6401 Question Bank KINEMATICS OF MACHINERY

ME6401 Question Bank KINEMATICS OF MACHINERY Regulation 2013 Anna University

Sample for ME6401 Question Bank:

1. Define ‘degrees of freedom’.

2. What is meant by spatial mechanism?

3. Classify the constrained motion.

4. What is meant by number synthesis?

5. What are the some important inversions of four chain mechanism?

6. What is toggle position?

7. What is pantograph?

8. What are the applications of single slider crank mechanism?

9. Give some examples for kinematics pairs.

10. Discuss Elliptical trammel

11. What is movability?

12. What is meant by transmission angle?

13. What is meant by Ackermann steering?

14. Write down the Grashof’s Law for a four bar mechanism?

15. What is meant by motion adjustment mechanism?

16. Whether a cycle chain is kinematic chain or not?

17. Define instantaneous centre & instantaneous axis?

18. What is link? What are the different types of links?

19. What is meant by spatial mechanism?

20. What is the use of oldham’s coupling?

Part-B

1. a) Explain different types of Link. (8)

b) Classify and explain the Kinematic pair. (8)

2. a) Explain any two inversion of four bar chain. (8)

b) Explain the first inversion of Single Slider Crank Chain. (8)

3. Explain first inversion of Double Slider crank chain. (8)

4. Explain third inversion of double slider crank chain. (8)

5. a) Explain the offset slider crank mechanism. (8)

b) Explain Straight line mechanism with neat sketch (8)

6. With the help of a neat sketch explain the working of Oldham’s coupling.

7. Explain steering gear mechanism with neat sketch

8. With the help of a neat sketch explain the working of Whitworth quick return mechanism.

9. With the help of a neat sketch explain the working of Single slider and double slider crank chain mechanism.

Subject Name	KINEMATICS OF MACHINERY
Subject Code	Me6401
Regulation	2013
File	PDF

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MA6452 Question Bank Statistics and Numerical Methods

MA6452 Question Bank Statistics and Numerical Methods regulation 2013 Anna University

Sample MA6452 Question Bank

1. A dice is thrown 400 times and a throw of 3 or 4 is observed 150 times. Test the hypothesis that the dice is fair.

2. Theory predicts that the proportion of beans in four groups A, B, C, D should be 9:3:3:1. In an experiment among 1600 beans, the numbers in the four groups were 882, 313, 287 and 118. Does the experiment support the theory?

3. Out of 8000 graduates in a town 800 are females, out of 1600 graduate employees 120 are females. Use to determine if any distinction is made in appointment on the basic of sex. Value of at 5% level for one degree of freedom is 3.84.

4. An automobile company gives you the following information about age groups and the liking for particular model of car which it plans to introduce. On the basic of this data can it be concluded that the model appeal is independent of the age group.
Persons who: Below 20 20 – 39 40 – 59 60 and above
Liked the car: 140 80 40 20
Disliked the car: 60 50 30 80

5. A sample of 900 members has a mean 3.4 cm and standard deviation 2.61 cm. Is the sample from a large population of mean 3.25 cms and standard deviation of 2.61cms? (Test at 5% level of significance. The value of z at 5% level is z1.96).

6. The means of two large samples of 1000 and 2000 members are 67.5 inches and 68.0 inches respectively. Can the samples be regarded as drawn from the same populations of standard deviation 2.5 inch

7. In a random sample of 1000 people from city A, 400 are found to be consumers of wheat. In a sample of 800 from city B, 400 are found to be consumers of wheat. Does this data give a significant difference between the two cities as far as the proportion of
wheat consumers is concerned?

Download MA6452 question bank:

Subject Name	Statistics and Numerical Methods
Subject Code	MA6452
Regulation	2013
File	PDF

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CE6405 Question Bank Soil Mechanics

CE6405 Question Bank Soil Mechanics Regulation 2013 Anna University.

Sample CE6405 Question Bank Soil Mechanics:

1. Distinguish between Residual and Transported soil. (AUC May/June 2012)

2. Give the relation between γsat, G, γw and e. (AUC May/June 2012)

3. A compacted sample of soil with a bulk unit weight of 19.62 kN/m3 has a water content of 15 per cent.What are its dry density, degree of saturation and air content? Assume G = 2.65.
(AUC Apr/May 2010)

4. What are all the Atterberg limits for soil and why it is necessary? (AUC Nov/Dec 2012)

5. Define sieve analysis and sedimentation analysis and what is the necessity of these two
analysis? (AUC Nov/Dec 2012)

6. Determine the maximum possible voids ratio for a uniformly graded sand of perfectly spherical
grains. (AUC Nov/Dec 2011)

7. What is a zero air voids line? Draw a compaction curve and show the zero air voids line.
(AUC Nov/Dec 2011)

8.Write the major soil classifications as per Indian Standard Classification System.

9. What is porosity of a given soil sample? (AUC Apr / May 2011)

10.What is water content in given mass of soil? (AUC Apr / May 2011)

11. Define :

(a) Porosity
(b) Void ratio. (AUC Nov/Dec 2010)

12. Define effective size of particle in sieve analysis. (AUC Nov/Dec 2010)

13.Write any two engineering classification system of soil. (AUC Apr / May 2009)

14. List any one expression for finding dry density of soils. (AUC Apr / May 2009)

15. Define water content and compaction.

16.What are the laboratory methods of determination of water content?

17. Define degree of saturation and shrinkage ratio.

18. Define specific gravity and density index.

19.What do understand from grain size distribution?

20.What are consistency limits of soil?

21. Define plasticity index, flow index and liquidity index.

22.What are the methods available for determination of in-situ density?

23.What is the function of A-line Chart in soil classification?

Subject Name	Soil Mechanics
Subject Code	CE6405
Regulation	2013
File	PDF

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CE6404 question bank SURVEYING 2

CE6404 question bank SURVEYING 2 REGULATION 2013 Anna University

Sample CE6404 question bank:

1. Triangulation :

Triangulation is nothing but the system consists of not of interconnected triangles. In this method, knowing the length of one side and three angles, the length of other two sides of each triangle can be computed.

2. Satellite Station :

A subsidiary station is established as near the true or principal station as possible, the station so established
is called a satellite station or eccentric station or false station.

3. Reduction to centre:

If the true station were occupied by computing the corrections and apply them algebraically to the observed
values is generally known as reduction of centre.

4. Base net:

A series of triangles connecting the baseline to the main triangulation is called base net.

5. Bench marking :

It is a fined reference point of known elevation.

6. Types of Bench Mark:

Great Trigonometric survey Bench mark
Permanent Bench mark
Arbitrary Bench mark
Temporary Bench mark

7. Equipments used for base line measurement:

Marking stakes or tripod
Straining device
Supporting stakes or tripod
Steel tape
Six number of thermometer.

8. Signals :

A Signal any object such as a pole target erected at a station upon which a sight is taken by a observer at another station.

9. Mistakes (or) Gauss Errors:

Depends upon the observer, a mistake cannot be corrected unless the observer get training. The mistakes are errors that arise from inattention, inexperience, carelessness and poor judgement of confusion in the mind of observer.

10. Conditioned Quantity:

It is the one whose value is dependent upon the values of one (or) more quantities. Its values bear a rigid relation to some other quantities. It is also called
“dependent quantities”.

Subject Name	Surveying 2
Subject Code	CE6404
Regulation	2013
File	pdf

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CE6403 Question Bank APPLIED HYDRAULIC ENGINEERING 

CE6403 Question Bank APPLIED HYDRAULIC ENGINEERING Regulation 2013

Sample CE6403 Question bank:

1. Differentiate open channel flow from pipe flow.

2. What is specific energy and is the condition for getting only one depth for a given specific energy?

3. How will do you distinguish between critical, sub- critical, super- critical flow.

4. Sketch the velocity distribution in a trapezoidal channel.

5. What is the use of a pitot–tube?

6. Briefly write a note on anemometers

7. Find the relationship between Chezy’s ‘C’ and Manning’s ‘n’.

8. Sketch the velocity distribution in rectangular and triangular channels.

9. What are the possible types of flow in open channel with respect to space and time?

10. What are the equations for critical depth for rectangular channel?

11. Distinguish between steady uniform flow and unsteady non – uniform flow.

12. Define specific energy.

16 MARKS

1. Define specific energy of flow at a channel section. Draw the specific energy curve and explain.

2. A trapezoidal channel has side slopes of 1 horizontal to 2 vertical and the slope of the bed is 1 in 2000. The area of the section is 42 m2. Find the dimensions of the section if it is to be most economical. Determine the discharge of the most economical section of C = 60.

3. Describe various types of flow in an open channel.

4. A rectangular channel with a base width of 0.60 m carries a discharge of 100 lps. The Chezy’s C is 60. If the depth of flow is 0.25 m, determine the bed slope of the channel

5. A rectangular channel 1.5m wide and depth 2.25m, discharge is 10m3/sec. calculate the specific
energy and depth alternate to the given depth.

6. A trapezoidal channel has a bottom width 6m, and side slope of 2h to 1v if a depth of flow is 1.2m at
a discharge of 10m3/sec. compute the specific energy and critical depth.

7. Define wide open channel and also what are the important assumptions in hydraulic parameters?

Subject Name	APPLIED HYDRAULIC ENGINEERING
Subject Code	CE6403
Regulation	2013
File	PDF

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