ME2155-COMPUTER AIDED ENGINEERING DRAWING LABORATORY ( List of Experiment)

LIST

1. Study of capabilities of software for Drafting and Modeling – Coordinate systems (absolute, relative, polar, etc.) – Creation of simple figures like polygon and general multi-line figures.

2. Drawing of a Title Block with necessary text and projection symbol.

3. Drawing of curves like parabola, spiral, involute using Bspline or cubic spline.

4. Drawing of front view and top view of simple solids like prism, pyramid, cylinder, cone, etc, and dimensioning.

5. Drawing front view, top view and side view of objects from the given pictorial views (eg. V-block, Base of a mixie, Simple stool, Objects with hole and curves).

6. Drawing of a plan of residential building ( Two bed rooms, kitchen, hall, etc.)

7. Drawing of a simple steel truss.

8. Drawing sectional views of prism, pyramid, cylinder, cone, etc,

9. Drawing isometric projection of simple objects.

10. Creation of 3-D models of simple objects and obtaining 2-D multi-view drawings from 3-D model.

ME2151-ENGINEERING MECHANICS - First Year - Second Semester ( Anna University Chennai)

ME2151-ENGINEERING MECHANICS
BASICS & STATICS OF PARTICLES
Introduction – Units and Dimensions – Laws of Mechanics – Lame’s theorem, Parallelogram and triangular Law of forces – Vectors – Vectorial representation of forces and moments – Vector operations: additions, subtraction, dot product, cross product – Coplanar Forces – Resolution and Composition of forces – Equilibrium of a particle – Forces in space – Equilibrium of a particle in space – Equivalent systems of forces – Principle of transmissibility – Single equivalent force.
EQUILIBRIUM OF RIGID BODIES
Free body diagram – Types of supports and their reactions – requirements of stable equilibrium – Moments and Couples – Moment of a force about a point and about an axis – Vectorial representation of moments and couples – Scalar components of a moment – Varignon’s theorem – Equilibrium of Rigid bodies in two dimensions – Equilibrium of Rigid bodies in three dimensions – Examples
PROPERTIES OF SURFACES AND SOLIDS
Determination of Areas and Volumes – First moment of area and the Centroid of sections – Rectangle, circle, triangle from integration – T section, I section, - Angle section, Hollow section by using standard formula – second and product moments of plane area – Rectangle, triangle, circle from integration – T section, I section, Angle section, Hollow section by using standard formula – Parallel axis theorem and perpendicular axis theorem – Polar moment of inertia – Principal moments of inertia of plane areas – Principal axes of inertia – Mass moment of inertia – Derivation of mass moment of inertia for rectangular section, prism, sphere from first principle – Relation to area moments of inertia.
DYNAMICS OF PARTICLES
Displacements, Velocity and acceleration, their relationship – Relative motion – Curvilinear motion – Newton’s law – Work Energy Equation of particles – Impulse and Momentum – Impact of elastic bodies.
FRICTION AND ELEMENTS OF RIGID BODY DYNAMICS
Frictional force – Laws of Coloumb friction – simple contact friction – Rolling resistance – Belt friction. Translation and Rotation of Rigid Bodies – Velocity and acceleration – General Plane motion.
REFERENCE
Text Books
1. Beer, F.P and Johnson Jr. E.R. “Vector Mechanics for Engineers”, Vol. 1 Statics and Vol. 2 Dynamics, McGraw-Hill International Edition, (1997).
Reference Books
1. Rajasekaran, S, Sankarasubramanian, G., “Fundamentals of Engineering Mechanics”, Vikas Publishing House Pvt. Ltd., (2000). 2. Hibbeller, R.C., “Engineering Mechanics”, Vol. 1 Statics, Vol. 2 Dynamics, Pearson Education Asia Pvt. Ltd., (2000). 3. Palanichamy, M.S., Nagam, S., “Engineering Mechanics – Statics & Dynamics”, Tata McGraw-Hill, (2001). 4. Irving H. Shames, “Engineering Mechanics – Statics and Dynamics”, IV Edition – Pearson Education Asia Pvt. Ltd., (2003). 5. Ashok Gupta, “Interactive Engineering Mechanics – Statics – A Virtual Tutor (CDROM)”, Pearson Education Asia Pvt., Ltd., (2002).

ME2305 APPLIED HYDRAULICS AND PNEUMATICS FOR NOV/DEC 2012 ANNA UNIVERSITY EXAMINATION IMPORTANT QUESTIONS

Anna University, Chennai Nov/Dec 2012- Important Questions

ME2305 APPLIED HYDRAULICS AND PNEUMATICS

V Sem MECH

Unit I-V

 

 

1.      Explain the hydraulic and pneumatic fluid power system 

2.      Differentiate between laminar and turbulent flow.

3.      How to calculate the frictional losses in the valves and fittings.

4.      Differentiate between laminar and turbulent flow. 

5.      Explain the various mechanisms of hydraulic mounting.

6.      Explain the working principle of external gear pump

7.      A pump has a displacement of 80 cm3. It delivers t.25 Lps at 1200 rpm and 75 bar. If the prime mover input torque is 110 N-m,

(1) Find the overall efficiency of the pump.

(2) What is the theoretical torque required to operate the pump?

8.      Draw and Explain the working of a direct acting pressure reducing valve with neat diagram

9.      With a neat sketch, explain the construction and operation of a pilot operated sequence valve.

10.      What is fail-safe circuit? With suitable diagram, explain two handed safety circuit.

11      Explain the operational feature of check valve.

12.      Explain the piston type compressor. 

13.      Discuss the construction and working principle of a Rotary vane air compression

14.      Explain the synchronizing circuit.     

15.      Develop and electro pneumatic circuit by cascade method for the following sequence : A+ B+ B- A-, Where A and B stands for cylinders, (+) indicates extension and (-) indicates retraction of cvlinders.

16.      Explain the hydro mechanical system

17      Explain the PLC with application.

18      Enlist the various faults, probable causes and also the remedial actions for the following pneurnatic system components.

 (i) Compressor

(iii) Air cylinder

(ii) FRL unit

(iv) Pipelines.

 

 

 

 

ME 2201 Manufacturing Technology Important Questions for 3rd Sem Mech , Anna University

Sem              :    3rd Semester

Subject       :    ME2201 Manufacturing Technology

Branch        :    Mechanical Engineering

Exam           :     Nov/Dec 2012 [ ODD Sem ]

Univ             :    Anna Univ & Affiliated Colleges

ME 2201 — MANUFACTURING  TECHNOLOGY — I

PART A — (10 × 2 = 20 Marks)

1.       What are the pattern materials?

2.       Explain the term fettling.

3.       What is the application of carburizing flame?

4.       What are the diameter and length of the electrodes available in the market?

5.       Explain the term Extrusion process.

6.       What are the disadvantages of forging processes?

7.       Define ‘‘Embossing’’.

8.       Write short notes on hydro forming.

9.       Define degree of polymerization.

10.     What is rotational moulding of plastics?

PART B — (5 × 16 = 80 Marks)

 11.     (a)      (i)       Name the pattern allowances which can be quantitatively specified.

Write brief note on each of them.

(ii)      Which properties are desirable for a moulding sand for sound casting?

Explain.                                                                                       Or

	(b)	(i) (ii)	Describe the operation of a Cupola furnace for melting cast iron. Compare precision investment casting and shell moulding from the
			point of process, product and applications.
12.	(a)	(i)	Discuss the filler and flux materials using in Arc welding process.
		(ii)	Describe  the  types  of  flames  obtained  in  an  oxy-acetylene   gas welding process giving the applications.

Or

(b)		(i)	Explain the TIG and MIG system of welding. Give the application of
each.
(ii)			Explain   the  resistance   welding   process   giving   the  equipment,
			parameters controlled and the applications.
13.	(a)	(i)	How do you compare forged components with cast components?
		(ii)	Explain the types of rolling mills with a neat sketch.

Or

(b)		(i)	Distinguish between wire drawing and tube drawing with sketches.
		(ii)	Explain   with   neat   sketches   of   upsetting   and   drawing operations.	down
14.	(a)	(i)	Explain with a sketch the principle of stretch forming.
(ii)			Washers of 10 mm inside diameter and 20 mm outside diameter are to  be  obtained  from  1mm  thick  sheet  metal.  Sketch  the  tools required.                                                                                          (8)

Or

(b)	(i)	What  is high  energy  forming,  and  in what  form  is  the  principle
applied? Sketch an example of one application.
(ii)		Explain the principle of metal spinning process with a neat sketch.

15.	(a)	(i)	Discuss the various properties of plastics.
		(ii)	Sketch and explain the injection moulding process.	Or

(b)	(i)	Why is screw injection  moulding  machine  better than a ram	type
		injection moulding machine?
	(ii)	Discuss the processing of thermosetting plastics.

Aeronautical Engineering AE 2203 Solid Mechanics Important Question Paper for 3rd Semester , Nov/Dec Exams

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Anna University Important Questions in ME2203 KINEMATICS OF MACHINERY for 3rd Semester Mechanical Engg

Ana University Important Questions
ME2203 KINEMATICS OF MACHINERY
3rd Sem MECH
Unit I-V

Type        :  Questions
Sem          :    3rd Semester
Subjecat :   Kinematics of Machinery
Branch    :    Mechanical Engineering
Univ         :   Anna University , Affiliated Colleges

1. With the help of a neat sketch explain the working of Whitworth quick return
mechanism
2. With the help of a neat sketch explain the working of Single slider and double
slider crank chain mechanism
3. Explain any two inversion of four bar chain
4. With the help of a neat sketch explain the working of O ldham’s coupling.
5. In a four link mechanism, the dimensions of the links are AB=200 mm,
BC=400mm, CD=450 mm and AD=600mm. At the instant when DAB=90°, the
link AB has angular velocity of 36 rad/s in the clockwise direction. Determine (i)
The velocity of point C, (ii) The velocity of point E on the link BC When BE =200
mm (iii) the angular velocities of links BC and CD, iv) acceleration of link of link BC
6. PQRS is a four bar chain with fixed link PS. The length of the links are : PQ = 62.5
mm, QR = 175 mm, RS = 112.5 mm and PS = 200 mm. The crank PQ rotates at 10
rad/s clockwise. Draw the velocity diagram and acceleration diagram when angle
QPS = 600 and find the angular velocity and angular acceleration of the links QR
and RS
7. Derive the expression for Coriolis component of acceleration with neat sketch
8. In a steam engine mechanism shown in figure a) the crank AB rotates at 200 rpm.
The dimensions of various links are AB = 12cm, BC = 48cm, CD = 18cm and DE
=36cm, EF = 12 cm and FP = 36cm. Find the velocities of C,D,E,F and P.
9. A tangent cam to drive a roller follower through a total lift of 12.5 mm for a cam
rotation of 75°. The cam speed is 600 rpm . The distance between cam centre and
follower centre at full lift is 45 mm and the roller is 20 mm in diameter. Find the
cam proportions and plot displacement, velocity and acceleration for one full
cycle
10.Draw the profile of a cam operating a roller reciprocating follower and with the
following data: Minimum radius of cam =25 mm; lift=30mm; Roller diameter=
15mm. The cam lifts the follower for 120° with SHM, followed by a dwell period
of 30°. Then the follower lowers down during 150° of cam rotation with uniform
acceleration and retardation followed by a dwell period. If the cam rotates at a
uniform speed of 150 RPM. Calculate the maximum velocity and acceleration of
follower during the descent period

11. Draw the profile of a cam operating a Knife-edged follower from the following
data: (a) Follower to move outward through 40 mm during 60° of a cam rotation;
(b) Follower to dwell for the next 45° (c) Follower to return its original position
during next 90° (d)Follower to dwell for the rest of cam rotation. The
displacement of the follower is to take place with simple harmonic motion during
both the outward and return strokes. The least radius of the cam is 50mm. If the
cam rotates at 300 r.p.m., determine the maximum velocity and acceleration of
the follower during the outward stroke and return stroke
12.Briefly explain the undercutting in cam mechanisms.
13. The sun planet gear of an epicyclic gear train, the annular D has 100 internal
teeth, the sun gear A has 50 external teeth and planet gear B has 25 external
teeth. The gear B meshes with gear D and gear A. The gear B is carried on arm E,
which rotates about the centre of annular gear D. If the gear D is fixed and arm
rotates at 20 rpm, then find the speeds of gear A and B.
14.The arm of an epicyclic gear train rotates at 100 rpm in the anticlock wise
direction. The arm carries two wheels A and B having 36 and 45 teeth
respectively. The wheel A is fixed and the arm rotates about the centre of wheel
A. Find the speed of wheel B. What will be the speed of B, if the wheel A instead
of being fixed, makes 200 rpm (clockwise).
15. An open belt drive is used to connect two parallel shafts 4 m apart. The diameter
of the bigger pulley is 1.5 m and that of the smaller pulley is 0.5 m. The mass of
the belt is 1 kg/m length. The maximum tension is not to exceed 1500 N. The
coefficient of friction is 0.25. The bigger pulley which is the driver runs at 250
rpm. Due to the slip, the speed of the driven is 725 rpm. Calculate the power
transmitted and power lost in friction
16.An open belt running over two pulley of 1.5 m and 1.0 m diameters connects two
parallel shafts 4.8 m apart. The initial ten in the belt is 3000 N. The smaller pulley
is rotating at 600 rpm. The mass of belt is 0.6703 kg/m length. The coefficient of
friction between the belt and pulleys is 0.3. Find (1) the exact length of the belt
required (2) the power transmitted taking c.f tension into account
17. A vertical shaft 140 mm in diameter rotating at 120 rpm rests on a flat end
footstep bearing. The shaft carries a vertical load of 30 KN. The coeffiecient of
friction is 0.06. Estimate the power lost in friction assuming (1) Uniform Pressure
and (2) Uniform wear
18.Two shaft whose centers are 1m apart are connected by a V belt drive. The
driving pulley is supplied with 100 KW and has an effective diameter of 300 mm.
It runs at 375 rpm. The angle of groove on the pulley is 400 The permissible

tension in 400 mm2 cross sectional area of the belt is 2.1 MPa. The density of the
belt is 1100 kg/ mm3 coefficient of friction is 0.28. Estimate number of belts
required
19.Single plate clutch, effective on both sides is required to transmit 25KW at 3000
rpm. Determine the outer and inner radius of frictional surface if the coefficient
of friction is 0.2555. The ratio of radius is 1.25 and the maximum pressure is not
to exceed of 0.1 N/mm2. Also determine the axial thrust to be provided by
springs. Assume uniform wear.
20. The mean diameter of the screw jack having pitch of 10 mm is 50 mm. A load
of 20 KN is lifted through a distance of 170 mm. Find the work done in lifting the
load and efficiency of the screw jack when (i) the load rotates with the screw, and
(ii) the load rests on the loose head which does not rotate with screw. The
external and internal diameter of the bearing surface of the loose head is 60 mm
and 10mm respectively. The coefficient of friction for the screw as well as the
bearing surface .



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