Sunday, 31 March 2013

How to calculate cutoff marks for anna university Engineering Counselling

StudentsBlog100

What is cutoff mark?
Cutoff mark is a mark which will be calculated based on the three main subjects that you have written in your 12th Public Board Exam Maths, Physics & Chemistry


What is the use of Cutoff mark??
The main use of the cutoff mark in TNEA 2013 engineering counseling is that this mark is one of the criteria which will be used to calculate Random numbers and they will assign random numbers to each and every student who applied for the counseling. To know what is random number Just CLICK HERE: RANDOM NUMBER

How to calculate cutoff marks??
Cutoff marks will be calculated by three main subjects which you have written in the 12th examinations
First Subject is Maths
Second Subject is Physics
Third Subject is Chemistry

Procedure for calculating cutoff marks:
Divide your Mathematics  mark with 2     = 1st Answer
Divide your Physics          mark with 4     = 2nd Answer
Divide your Chemistry      mark with 4      = 3rd Answer   

Adding 1st Answer + 2nd Answer + 3rd Answer = YOUR CUTOFF MARK

Example for Cut-Off mark Caclulation


SL.NOSUBJECTSMARKSCALCULATIONCUTOFF MARKS
1MATHEMATICS196196 / 298
2Physics179179 / 444.75
3CHEMISTRY183183 / 445.75

Online Cut-Off mark Calculator ---> CLICK HERE


To know details about TNEA 2013 --> CLICK HERE

Friday, 29 March 2013

POWER ELECTRONICS EE2301 ANNA UNIVERSITY NOVEMBER/DECEMBER 2010 PREVIOUS YEAR QUESTION PAPER


Subject Code : EE2301
Subject Name : POWER ELECTRONICS
Semester : Fifth Semester
Department : EEE

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2010
Fifth Semester
Electrical and Electronics Engineering
EE 2301 — POWER ELECTRONICS
(Common to Instrumentation and Control Engineering)
(Regulation 2008)

PART A — (10 × 2 = 20 Marks)

1. Draw the turn-on characteristics of TRIAC and mark the timings td, tr and ton?
2. What are the factors that influence the turn-off time of a thyristor?
3. Draw the circuit diagram of single phase dual converter.
4. Define the term voltage ripple factor, current ripple factor.
5. Mention any two disadvantages of frequency modulation control strategy.
6. What are the advantages of ZVS when compared to ZCS?
7. Differentiate VSI from CSI.
8. List various applications of phase controlled converters.
9. What is meant by cycloconverter?
10. Write the output R.M.S. voltage for single phase AC voltage controller with
resistance load.

PART B — (5 × 16 = 80 Marks)

11. (a) Explain the operation of IGBT with the help of neat structural diagram and suitable wave forms. (16)
(Or)
(b) (i) Draw the turn-off characteristics of an SCR and explain the mechanism of turn-off. (8)
(ii) What are the different methods for turning off an SCR? Explain all methods in detail. (8)
12. (a) (i) Describe the operation of a single phase two pulse bridge converter using 4 SCR'S with relevant waveforms. (10)
(ii) Discuss the working of above converter in the converter mode with RLE load. (6)
(Or)
(b) (i) A single phase semi converter is operated from 120 V 50 Hz ac supply. The load current with an average value Idc is continuous and ripple free firing angle α =π 6 . Determine.
(1) Displacement factor
(2) Harmonic factor of input current
(3) Input power factor. (10)
(ii) Write a note on battery charger. (6)
13. (a) (i) Discuss the principle of operation of DC-DC step down chopper with suitable waveform. Derive an expression for its average DC output voltage. (8)
(ii) A step-down dc chopper has a resistive load of R = 15 and input voltage Edc = 200 V. When the chopper remains ON, its voltage drop is 2.5 for a duty cycle of 0.5.
Calculate :
(1) Average and r.m.s value of output voltage
(2) Power delivered to the load. (8)
(Or)
(b) Draw the circuit of CUK regulator and explain its working principle with necessary waveform in detail. (16)
14. (a) (i) Describe the working of a 1φ pull bridge inverter with relevant circuit and waveforms. (8)
(ii) What is PWM? List the various PWM techniques and explain any one of them. (8)
(Or)
(b) Explain the Harmonic reduction by transformer corner lines and stepped wave inverters. (16)
15. (a) (i) Describe the operation of single phase full wave a.c voltage controller with the help of voltage and current waveform. Also derive the expression for average value of output voltage. (10)
(ii) For a single phase a.c regulator feeding a resistance load, show that power factor is given by the expression ( ) 2ππx . (6)
(Or)
(b) (i) Describe three-phase to three phase cycloconverter with relevant circuit arrangement using 18 thyristors. (8)
(ii) Show that the fundamentals RMS value of per phase output voltage of low frequency for an m-pulse cycloconverter is given by π πm n E Epn or sin . (8

CS2411 OPERATING SYSTEM NOV/DEC 2011 PREVIOUS YEAR ANNA UNIVERSITY QUESTION PAPER

Subject Code : CS2411
Subject Name : OPERATING SYSTEM (OS)
Semester : Seventh Semester
Department : EEE



ANNA UNIVERSITY MCA MCA ME PG ANNA UNIVERSITY MAY/JUNE 2013 TIMETABLE



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Wednesday, 27 March 2013

Anna University Revaluation procedure for Nov / Dec / Jan 2013 Anna University Revaluation Procedure January 2012 UG/PG

All the candidates irrespective of the GRADE/MARK secured in the University Examinations can apply for Revaluation

To apply, a student can opt for any one of the following:

Option 1: Apply for Revaluation only with a fee of Rs.400/- per
script.

Option 2: Apply for Photocopy–cum–Revaluation with a fee of
Rs.700/- per script.

Only Candidates who have applied for Photocopy-cum-Revaluation Uare eligible for the Review for their answer script (by remitting the prescribed fee) after the Publication of the Revaluation Results, if not satisfied with the revalued results. Those who have applied Uonly for RevaluationU are Unot eligibleU for the
review of their answer scripts. The details of the UReview UProcedure will be announced along with the revaluation results.

Applying Revaluation/Photocopy cum Revaluation of January 2013 Examinations is available, last date for applying revaluation / revaluation cum photocopy is 05-04-2013

For More info Visit --> http://coe1.annauniv.edu/aucoe/forms/index.php

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DIGITAL ELECTRONICS ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER, IMPORTANT QUESTIONS, 2 MARKS AND 16 MARKS QUESTIONS FOR ECE DEPARTMENT


EC2203  DIGITAL ELECTRONICS ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER, IMPORTANT QUESTIONS, 2 MARKS AND 16 MARKS QUESTIONS FOR ECE DEPARTMENT

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2009.
Third Semester
Electronics and Communication Engineering
EC 2203 — DIGITAL ELECTRONICS
(Regulation 2008)
Time : Three hours Maximum : 100 Marks
Answer ALL Questions
PART A — (10 × 2 = 20 Marks)
1. Prove that the logical sum of all minterms of a Boolean function of 2 variables is 1.
2. Show that a positive logic NAND gate is a negative logic NOR gate.
3. Suggest a solution to overcome the limitation on the speed of an adder.
4. Differentiate a decoder from a demultiplexer.
5. Write down the characteristic equation for JK flipflop.
6. Distinguish between synchronous and asynchronous sequential circuits.
7. Compare and contrast static RAM and dynamic RAM.
8. What is PAL? How does it differ from PLA?
9. What are Hazards?
10. Compare the ASM chart with a conventional flow chart.



PART B — (5 × 16 = 80 Marks)
11. (a) (i) Express the Boolean function Z X XY F + = in product of Maxterm.
(6)
(ii) Reduce the following function using K-map technique
( ) ( ) ( ) 6 , 2 14 , 12 , 10 , 8 , 7 , 4 , 3 , 0 , , , d D C B A f + = π . (10)
Or
(b) Simplify the following Boolean function by using Quine-Mcclusky method
( ) ( ) ∑ = 13 , 12 , 10 , 8 , 7 , 6 , 3 , 2 , 0 , , , D C B A F . (16)
12. (a) Design a carry look ahead adder with necessary diagrams. (16)
Or
(b) (i) Implement full subtractor using demultiplexer. (10)
(ii) Implement the given Boolean function using 8 : 1 multiplexer
( ) ( ) ∑ = 6 , 5 , 3 , 1 , , C B A F . (6)
13. (a) (i) How will you convert a D flipflop into JK flipflop? (8)
(ii) Explain the operation of a JK master slave flipflop. (8)
Or
(b) Explain in detail the operation of a 4 bit binary ripple counter. (16)
14. (a) Implement the following Boolean functions with a PLA
( ) ( ) ∑ = 4 , 2 , 1 , 0 , , 1 C B A F
( ) ( ) ∑ = 7 , 6 , 5 , 0 , , 2 C B A F
( ) ( ) ∑ = 7 , 5 , 3 , 0 , , 3 C B A F . (16)
Or
(b) Design a combinational circuit using a ROM. The circuit accepts a three
bit number and outputs a binary number equal to the square of the input
number. (16)
15. (a) Design a three bit binary counter using T flipflops. (16)
Or
(b) Design a negative-edge triggered ‘T flipflop’. (16)


EC2353 ANTENNA AND WAVE PROPAGATION ANNA UNIVERSITY MODEL QUESTION PAPER | AWP EC2353 QUESTION PAPER NOVEMBER/DECEMBER 2011


Subject Name : ANTENNA AND WAVE PROPAGATION
Subject Code : EC 2353
Semester : Sixth Semester
Department :
Electronics and Communication Engineering

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011.
Sixth Semester
Electronics and Communication Engineering
EC 2353 —ANTENNA AND WAVE PROPAGATION
(Regulation 2008)
(Common to PTEC 2353 - Antenna and wave Propagation for B.E.( Part- time)
Fifth Semester Electronics and communication Engineering -Regulation 2009)

PART A — (10 × 2 = 20 marks)

1. What is the significance of gain of an antenna?
2. Define effective aperture of an antenna.
3. Why is loop antenna called as magnetic dipole?
4. Define Pattern Multiplication.
5. State Babinet’s Principle.
6. What are the limitations of Lens antenna?
7. Why is log periodic antenna called so?
8. What are the features of microstrip antenna?
9. Define Critical frequency.
10. What is meant by Faraday rotation?


PART B — (5 × 16 = 80 marks)

11. (a) What are Hertizian dipoles? Derive the Electric and magnetic field quantities of Infinitesimal dipole and radiation pattern. (16)
Or
(b) Explain the following parameters of an antenna:
(i) Beam solid angle
(ii) Radiation pattern
(iii) Gain
(iv) Polarization
(v) Bandwidth. (16)
12. (a) Derive the field quantities and Radiation resistance of a half wavelength dipole. (16)
Or
(b) An antenna array consists of two identical isotropic radiators spaced by a distance of d= λ/4 meters and fed with currents of equal magnitude but with a phase difference ‘β’. Evaluate the resultant radiation for β=0o and thereby identify the direction of maximum radiation. (16)
13. (a) Explain the radiation mechanism of Microwave Horn antenna with diagram. (16)
Or
(b) Explain the special features of Parabolic Reflector antenna and discuss on different types of feed used with neat diagram. (16)
14. (a) With a neat sketch, explain the construction and operation of Multielement Yagi- Uda antenna. (16)
Or
(b) With necessary illustrations explain the radiation characteristics of microstrip antenna and mention its possible application. (16)
15. (a) (i) Explain the mechanism of ionospheric propagation with neat diagram. (8)
(ii) Discuss the effects of Earth’s magnetic field on ionosphere radio wave propagation? (8)
Or
(b) (i) Explain important features of ground wave propagation? (10)
(ii) Explain the terms:
(1) Optimum working frequency
(2) Skip distance
(3) Virtual height. (6)

OBJECT ORIENTED ANALYSIS AND DESIGN CS2353 ANNA UNIVERSITY NOVEMBER/DECEMBER 2011 QUESTION PAPER | OOAD CS 2353 PREVIOUS YEAR MODEL QUESTION PAPER


B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011.
Sixth Semester
Computer Science and Engineering
CS 2353 — OBJECT ORIENTED ANALYSIS AND DESIGN
(Common to Information Technology)
(Regulation 2008)
                                                          
Answer ALL questions.
PART A — (10 × 2 = 20 marks)
1. List out any four reasons for the complexity of software.
2. What do you mean by use cases and actors?
3. Give the hint to identify the attributes of a class.
4. Define swim lane.
5. What do you mean by sequence diagram? Mention its use.
6. What do you mean by sequence number in UML? Where and for what it is
used?
7. Distinguish between coupling and cohesion.
8. Write a note on Patterns.
9. Define component with an example.
10. How will you reflect the version control information in UML diagram?


PART B — (5 × 16 = 80 marks)


11. (a) What do you mean by Unified Process in OOAD? Explain the phases with suitable diagrams. (16)
Or
(b) By considering the Library Management system, perform the Object Oriented System Development and give the use case model for the same (use include, extend and generalization). (16)
12. (a) Explain the relationships that are possible among the classes in the UML representation with your own example. (16)
Or
(b) Explain the following with an example :
(i) Conceptual class diagram
(ii) Activity Diagram. (8 + 8)
13. (a) With a suitable example explain how to design a class. Give all possible representation in a class (name, attribute, visibility, methods, responsibilities). (16)
Or
(b) What do you mean by interaction diagrams? Explain them with a suitable example. (16)
14. (a) What is GRASP? Explain the design patterns and the principles used in it. (16)
Or
(b) What is design pattern? Explain the GoF design patterns. (16)
15. (a) Explain the state chart diagram with a suitable example. Also define its components and use. (16)
Or
(b) Consider the Hospital Management System application with the following requirements
(i) System should handle the in-patient, out-patient information through receptionist.
(ii) Doctors are allowed to view the patient history and give their prescription.
(iii) There should be a information system to provide the required information.
Give the state chart, component and deployment diagrams.(6 + 6 + 4)

ADVANCED COMPUTER ARCHITECTURE CS2354 NOVEMBER/DECEMBER 2011 ANNA UNIVERSITY QUESTION PAPER | CS2354 ACA PREVIOUS YEAR QUESTION PAPER


B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011.
Sixth Semester
Computer Science and Engineering
CS 2354 — ADVANCED COMPUTER ARCHITECTURE
(Regulation 2008)

PART A — (10 × 2 = 20 marks)

1. What is instruction level parallelism?
2. What are the advantages of loop unrolling?
3. What are the limitations of VLIW?
4. What is the use of branch-target buffer?
5. Distinguish between shared memory multiprocessor and message-passing multiprocessor.
6. Differentiate multithreading computers from multiprocessor systems
7. Define the terms cache miss and cache hit.
8. What is RAID?
9. What is a multi-core processor?
10. What is a cell processor?


PART B — (5 × 16 = 80 marks)


11. (a) (i) Explain the data and name dependencies with suitable example. (10)
(ii) Discuss about the benefits and limitations of static branch prediction and dynamic branch prediction (6)
Or
(b) Briefly explain how to overcome data hazards with dynamic scheduling using Tomasula’s approach. (16)
12. (a) (i) Describe the architecture of Itanium processor with the help of a block diagram. (8)
(ii) Explain how ILP is achieved in EPIC processors (8)
Or
(b) (i) Describe the architectural features of IA64 processor in detail.(8)
(ii) What are the advantages and disadvantages of software-based and hardware-based speculation mechanism? (8)
13. (a) (i) Briefly compare instruction level parallelism with thread-level parallelism. (8)
(ii) Explain the basic architecture of a distributed memory multiprocessor system. (8)
Or
(b) (i) Explain various memory consistency models in detail. (10)
(ii) What is multithreading and what are the advantages of multithreading? (6)
14. (a) What is meant by cache coherence problem? Describe various protocols for cache coherence. (16)
Or
(b) Briefly explain various I/O performance measures. (16)
15. (a) (i) Describe the architecture of typical CMT processor. (8)
(ii) Discuss the design issues for simultaneous multithreading. (8)
Or
(b) (i) Explain the architectural features of IBM cell processor in detail. (10)
(ii) Briefly compare SMT and CMP architectures. (6)


SOFTWARE ENGINEERING AND QUALITY ASSURANCE IT2251 ANNA UNIVERSITY MODEL QUESTION PAPER | SEQA IT 2251 PREVIOUS YEAR QUESTION PAPER NOVEMBER/DECEMBER 2011

Subject Name :  SOFTWARE ENGINEERING AND QUALITY ASSURANCE  (SE)
Subject Code : IT 2251
Semester : Fourth Semester
Department : Information Technology

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011.
Fourth Semester
Information Technology
IT 2251 – SOFTWARE ENGINEERING AND QUALITY ASSURANCE
(Regulation 2008)

PART A — (10 × 2 = 20 marks)

1. What is meant by Independent Verification and Validation?
2. Differentiate Waterfall model with V-Model.
3. Name the components of CASE tools for structured methodology.
4. List the steps involved in requirements elicitation and analysis.
5. What is meant by heuristic evaluation?
6. List out the steps involved in real time software design.
7. What is meant by Boundary value analysis?
8. Define the term process maturity.
9. Name any four quality control tools.
10. State the benefits of QFD.

PART B — (5 × 16 = 80 marks)

11. (a) (i) Describe the process model which defines a network of activities. (8)
(ii) State as to why the first system is always a throw away system? Explain the concept with advantages and disadvantages. (8)
                             Or
(b) (i) Draw a system engineering hierarchy diagram and explain the concept. (8)
(ii) Explain the process model that combines the elements of waterfall and iterative fashion. (8)
12. (a) Give a brief description of software prototyping and briefly discuss the various prototyping techniques. (16)
                              Or
(b) With an example describe the three process steps for transforming a dataflow diagram to a structure chart. (16)
13. (a) (i) Draw a translating diagram for analysis model into a software design Specification. (8)
(ii) Give a complete template for documentation design specification. (8)
                              Or
(b) (i) Which is a measure of interconnection among modules in a program structure?Explain. (8)
(ii) What is the difference between Level-0 and Level-1 DFD? Draw a Level-0 and Level-1 DFD for safe Home Security System. (8)
14. (a) (i) What are all the formulas for cyclomatic complexity? Calculate cyclomatic Complexity for greatest of three numbers. (8)
(ii) How would you derive test cases for the given project? Explain in detail. (8)
                             Or
(b) (i) Narrate the path testing procedure in detail with a sample code.(8)
(ii) Explain the different integration testing approaches. (8)
15. (a) Explain how software process assessment helps software organizations to improve themselves. (16)
                            Or
(b) Write detailed notes on ISO9000 series of quality management standards. (16)

COMPUTER GRAPHICS CS2401 ANNA UNIVERSITY QUESTION PAPER |CS2401 CG NOVEMBER/DECEMBER 2011 PREVIOUS YEAR QUESTION PAPER

Subject Name : COMPUTER GRAPHICS 
Subject Code :  CS 2401
Semester :   Seventh Semester   
Department :  Computer Science and Engineering


B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2011.
Seventh Semester
Computer Science and Engineering
CS 2401 — COMPUTER GRAPHICS
(Common to Information Technology)
(Regulation 2008)

PART A — (10 × 2 = 20 marks)

1. Write down any two line attributes.
2. Differentiate window and viewport.
3. What are spline curves?
4. Define quadric surfaces.
5. What is animation?
6. Define keyframes.
7. What do you mean by shading of objects?
8. What is texture?
9. Define fractals.
10. Differentiate Mandelbrot and Julia sets.

PART B — (5 × 16 = 80 marks)

11. (a) Write down and explain the midpoint circle drawing algorithm. Assume 10 cm as the radius and co-ordinate origin as the centre of the circle.
Or
(b) Explain in detail the Cohen-Sutherland line clipping algorithm with an example.
12. (a) Differentiate parallel and perspective projections and derive their projection matrices.
Or
(b) With suitable examples, explain all 3D transformations.
13. (a) Write notes on RGB and HSV color models.
Or
(b) Discuss the following:
(i) Methods to draw 3D objects. (8)
(ii) Basic OPENGL operations. (8)
14. (a) Explain the following:
(i) Adding texture to faces. (8)
(ii) Adding shadows of objects. (8)
Or
(b) Write down and explain the details to build a camera in a program.
15. (a) Write notes on Peano curves.
Or
(b) Write about random fractals in detail.


Monday, 25 March 2013

CS 1151 DATASTRUCTURES ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER DOWNLOAD

ANNA UNIVERSITY
B.E/B.Tech. DEGREE EXAMINATION, MAY/JUNE-2010
CS 1151 DATASTRUCTURES
Third Semester
Electronics and Communication Engineering


PART – A (10 * 2 = 20 Marks)
1. Define ADT.
2. How do you push and pop elements in a linked stack?
3. Prove that the number of odd degree vertices in a connected graph should be even.
4. Define NP hard and NP complete.
5. Define binary search tree.
6. List out and define the performance measures of an algorithm.
7. What is Recursion? Explain with an example.
8. List out the various techniques of hashing.
9. What is the worst case complexity of Quick sort?
10. State the algorithmic technique used in merge sort.

PART B (5 * 16 = 80 Marks)

11.(a) Derive the best, average, worst case time complexity of a linear search.
Or
(b) (i) Develop an algorithm for binary search. Validate the algorithm with a suitable data set. (10)
(ii) What is Top down approach? Explain. (6)

12. (a) Write ADT operations for array implementation of polynomial addition.
Or
(b) Write ADT operations for array implementation of a queue.
13. (a) Write insertion algorithm for AVL tree. Write suitable rotation algorithms.
Or
(b) (i) Explain the algorithm for separate chaining. ( 8 )
(ii) Explain implementation of priority queue ( 8 )
14. (a) Write ADT operations for heap sort. Using the above algorithm sort the following:
35 45 25 11 6 85 17 35
Or
(b) (i) Explain the quick sort algorithm. ( 8 )
(ii) Explain external sorting. Give relevant example. ( 8 )
15. (a) Explain Dijkstra's algorithm using the following graph. Find the shortest path between v1, v2, v3, v4, v6 and v7.
[Diagram not available]
Or
(b) (i) Write ADT operation for Prim's algorithm. ( 8 )
(ii) Explain the topological sort algorithm. ( 8 )

GE 131 - ENGINEERING MECHANICS ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER DOWNLOAD

GE 131 - ENGINEERING MECHANICS

PART – A (10 X 2 = 20 Marks)

1. Determine the resultant of the three forces F1 = 2.0i + 3.3j – 2.6k; F2 = - i + 5.2j – 2.9k; and F3 = 8.3i – 6.6j + 5.8k, which are concurrent at the point (2, 2, -5.). The forces are in newtons and the distances are in metres.

2. A force F = (6N)i – (3Nj – (4N)k is acting at a point P whose position vector from the origin 'O' of the coordinate axes is (8 mm)i + (6 mm)j – (4 mm)k. Find the moment of the force about the origin.
3. State Varignon's theorem.
4. State the theorems of Pappus and Guldinus to find out the surface area and the volume of a body.
5. State the Coulomb's laws of dry friction.
6. A belt embraces an angle of 200? over the surface of a pulley of 500 mm diameter. If the tight side tension of the belt is 2.5 kN. Find out the slack side tension of the belt. The coefficient of friction between the belt and the pulley can be taken as 0.3.
7. The motion of a particle in defined by the relation x = t3 – 15 t2 – 20, where 'x' is expressed in metres and 't' in seconds. Determine the acceleration of the particle at t = 3 seconds.
8. A mass of 50 kg. has an initial velocity of 15 m/s. horizontally on a smooth surface. Determine the value of horizontal force that will bring the mass to rest in 4 seconds.
9. Define the term 'coefficient of restitution' of two bodies under impact.
10. State the principle of conservation of linear momentum of a particle.

PART – B (5 x 16 = 80 Marks)

11. A force F acts at the origin of a coordinate system in a direction defined by the angles ?x = 69.3? and ?z = 57.9?. If the component of the force F along y direction is = -174N, determine.
(i) the angle ?y (4 Marks) (ii) the magnitude of the force F (4 Marks) (iii) the components of the force F along x and z directions. (4 Marks) (iv) the component of the force F on a line through the origin (4 Marks) . and the point (1,1,1).
12. (a) A load P of 3500 N is acting on the boom, which is held by a cable BC as shown in Fig.12(a). The weight of the boom can be neglected.
(i) Draw the free body diagram of the boom. (4 Marks) (ii) Find out the tension in cable BC. (8 Marks) (iii) Determine the reaction at A. (4 Marks)
(OR)
(b) Three forces +20N, -10N and +30N are acting perpendicular to x z plane as shown in Fig. Q.12(b). The lines of action of all the forces are parallel to y-axis. The coordinates of the point of action of these forces along x and z directions are respectively (2,3), (4,2) and (7,4), all the distances being referred in metres. Find out.
(i) The magnitude of the resultant force. (4 Marks) (ii) The location of the resultant. (12 Marks)
13.(a) (i) Determine the coordinates of the centroid of the shaded area shown in Fig. Q.13 (a) if the area removed is semicircular. (4 Marks) (ii) Find the moment of inertia of the shaded area about the centroidal axes, the axes being parallel to x and y-axes. (6 Marks) (iii) Find the product of inertia of the shaded area about the centroidal axes. . (6 Marks)
(OR)
(b) Find the mass moment of inertia of the rectangular block shown in Fig. Q.13(b), about the x and y axes. A cuboid of 20 mm x 20 mm x 20 mm has been removed from the rectangular block as shown in the figure. The mass density of the material of the block is 7850 kg/m3.

14.(a) Two masses m1 and m2 are tied together by a rope parallel to the inclined plane surface, as shown in Fig. Q.14(a). Their masses are 22.5 kg. and 14 kg. respectively. The coefficient of friction between m1 and the plane is 0.25, while that of mass m2 and the plane is 0.5. Determine.
(i) the value of the inclination of the plane surface, ?, for which the masses will just start sliding. (6 Marks) (ii) the tension in the rope. (6 Marks) (iii) what will be the friction forces at the mass surfaces. (4 Marks)
(OR)
(b) The driver of an automobile decreases the speed at a constant rate from 72 to 48 km./hour over a distance of 230 m. along a curve of 460 m. radius. Determine the magnitude of the total acceleration of the automobile, after the automobile, after the automobile has traveled 150 m. along the curve.
15.(a) Two steel blocks, shown in Fig. Q. 15(a), slide without friction on a horizontal surface. The velocities of the blocks immediately before impact are as shown. If the coefficient of restitution between the blocks is 0.75, determine (i) the velocities of the blocks after impact and (12 Marks) (ii) the energy loss during impact. (4 Marks)
(OR)
(b) A plate shown in Fig.Q.15 (b) moves in the xy plane as below.
x component velocity of point A = 450 mm/s. x component velocity of point B = -150 mm/s. y component velocity of point C = -900 mm/s. Determine : (i) the angular velocity of the plate and (8 Marks) . (ii) the velocity of the point B. (8 Marks)