## Uttarakhand tech. university

## b tech

## sub:- mathamatics iii

**utu previous year question papers**

time : 3hr]

Total marks :

**100****SECTION A**

Q1:- Attempt any

**two**of the following :
time : 3hr]

Total marks :**100**

Q1:- Attempt any **two** of the following :

UTTARAKHAND TECH. UNIVERSITY

UTU

B.TECH FIRST YEAR, 2012

SUB :- MECHANICAL

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Define the following terms:

(i) Quasi-static process

(ii) Thermodynamic equilibrium

(iii) Thermal reservoirs - Explain the concept of free expansion with zero work transfer.
- The properties of a closed system change following the relation between pressure and volume as pV = 3.0, where p is in bar and V is in m
^{3}. Calculate the work done when the pressure increase from 1.5 bar to 7.5 bar. - Define 'internal energy' and prove that it is a property of a system.
- Explain heat transfer is a path function?

UTTARAKHAND TECH. UNIVERSITY

UTU

B.TECH 2nd YEAR, 2010-2011

SUB :- Emi

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Explain the working principle of PMMC Instruments.
- A 0 to 10 amp meter has a guaranteed accuracy of 1.5% of full scale reading. The current measured by the instrument is 2.5 ampere calculate and percentage limiting error.
- Explain the working principle of dc ammeter and dc volt meter.
- The current passing through a resistor of50 ± 0.2Ω is 4.0 ± 0.02 amp determine the limiting error in the computed value of power dissipation.
- Explain the following errors :

(i) Gross error

(ii) Systematic error

(iii) Absolute error - Explain the working principle of series ohm meter.

UTTARAKHAND TECH. UNIVERSITY

UTU

B.TECH sem iii, 2011-2012

sub- FLUID MECHANICS

time : 3hr]

Total marks :**100**

- Explain briefly Magnus effect.
- Define Newton's law of viscosity of fluid.
- Explain the term vapour press and cavitation. Derive an expression for capillarity fall.
- Explain the term absolute, gauge, atmospheric and vacuum pressure.
- Explain the condition of equilibrium of floating and submerged bodies.
- The diameter of a small piston and a large piston of a hydraulic jack are 5cm and 9cm respectively. A force of 120 N is applied on the small piston. Find the load lifted by the large piston when :

(i) The pistons are at same level

(ii) Small piston is 40 cm above the large piston. Density of liquid in jack is given as 1000 kg per meter cube.

UTTARAKHAND TECH. UNIVERSITY

UTU

B.TECH FIRST YEAR, 2012

SUB :- cHEMISTRY

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Draw the MO diagram of HF molecule and calculate its bond order.
- Derive Bragg's equation for diffraction of X-rays by crystal.
- Write mechanism of :

(i) Cannizzaro Reaction

(ii) Beckmann's rearrangement. - By using appropriate examples, discuss and illustrate the stereo chemical implications of SN
^{1 }and SN^{2 }reaction. - (i) Differentiate between Enantiomers and Diasteromers by using suitable example.(ii) Differentiate between Nematic and smectic liquid crystal.

UTTARAKHAND TECH. UNIVERSITY

utu

B.TECH FIRST YEAR, 2012

SUB :- BASIC ELECTRICAL ENGINEERING

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Define the following

(i) Resistance

(ii) Specific Resistance

(iii) Potential difference

(iv) Unilateral Element

(v) Ammeter - In the circuit shown 100 V dc voltage is applied across terminal A-B, calculate the power dissipated in each resistor and the reading of a voltmeter connected across the 5 ohm resistor.

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Reduce the matrix

to normal form and hence find its rank.

- Show that the vectors :
*X*are linearly dependent. Find the relation between them._{2 }= (1,2,4), X_{2}= (2,-1,3), X_{3}= (0,1,2), X_{4}=(-3,7,2) - Show that the matrix

is Hermitian and i*A*is skew Hermitian. - Verify Cayley-Hamilton theorem for

and hence find*A*^{-1.} - Prove that the eigenvalues of a unitary matrix are of unit modulus.
- Test the consistency for the following system of equation and if system is consistent solve them:
*x + y + z =6,*

x + y + 3z= 14,

x + 4y + 7z =30.

Q2:- Attempt any **four **of the following:

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Explain the evaluation of microprocessor in brief.
- Draw the functional block diagram of Intel-8085.
- State the function of temporary register of the 8085 microprocessor.
- State the features of 8086. Also explain the difference between 8086 and 8085.
- Define the term interrupt, exception, fault, and trap.
- List the four major processing units in an 80826 microprocessor and describe the function of each.

Q2:- Attempt any **two **of the following :

Uttarakhand Technical University

(utu)

B.tech (2nd year)

2012 Examination

sub:- Computer Organization

time:- 3hr

total marks :100

Q1:- Attempt any four parts of the following :

- What to you mean by inter-register transfer? Discuss Bus transfer.
- Design Arithmetic Logic Shift unit that will perform different arithmetic, logic an shift operation.
- Draw a diagram of bus system for four register of 4-bits each. The bus is to be constructed with multiplexers.
- Show the hardware implementation for the following statements. The registers are 4-bits in lengths :

TO : A RO

T1 : A R1

T2 : A R2

T3 : A R3 - Show the multiplication process using Booth's algorithm when the following binary numbers are multiplied : (12)*(-18)
- Represent the decimal number -0.654 into IEEE Floating point format.

Q2:- Attempt any Four parts of the following :

- Explain the Fetch and Execute cycle during execution of an instruction.
- Describe briefly a Hardwired Control.
- What is microinstruction? Describe the microinstruction format.
- What do you mean by the term Microprogram Sequence. Explain the role played by it.
- Discuss advantages and disadvantages of Micro-programmed Control.
- Explain wide-branch addressing and emulation.

Q3 Attempt any two parts of the following :

- Write a program to evaluate the arithmetic expression :

X= (A+B*C)/(D+E*F/G+H) Using three, two, one and zero address Instructions. - Design an efficient logic circuit shared by different branch condition derived form the combination or stand alone status of the Flag register bits S (sign), V(overflow), C(End carry), Z(all O's). Specific the conditional branch instruction which can b supported by the circuit you have designed.
- Describe DMA with suitable blocks diagram. Why does DMA have priority over the CPU when both request a memory transfer ? Explain,

Q4:- Attempt any two parts of the following :

- The access time of a cache memory is 100 ns and that of main memory 1000 ns. It is estimated that 80 percent, of the memory requests are for read and the remaining 20 % for write. The hit ratio for read accesses only is 0.9.

(a) What is the average access time of the system considering only memory read cycles ?

(b) What is the average access time of the system for both read and write requests ?

(c) What is the hit ratio taking into consideration the write cycles ? - A Block set associative cache consists of a total of 64 blocks divided into four block sets. The main memory containing 4096 blocks each consisting of 128 words.

(a) How many bits are there in the main memory address ?

(b) How many bits are there in each of TAG, SET and WORD field ? - Discuss the concept and implementation of virtual memory. Also describe a suitable scheme for translation from logical address to physical address.

Q5:- Attempt any two parts of the following :

- Give various architectural classification schemes. Also discuss the Flynn's and Feng's Classification in detail.
- Discuss the various possible hazards between read and write operations in an instruction pipeline and state the mechanism to detect and avoid these hazards. Also discuss the dynamic instruction scheduling.
- Consider the execution of a program of 15000 instructions by a linear pipeline processor with a clock rate of 25 MHz. Assume that the instruction pipeline has five stages and that one instruction and out of sequence executions are ignored.

(a) Calculate the speedup factor in using this pipeline to execute the program as compared with the use of an equivalent nonpipelined processor with an equal amount of flow through delay.

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this question paper is only for Uttarakhand techinical university (UTU).Step4success is the only ultimate collection of question papers of UTU and HNB.

Best of luck guys :)

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

**4x5=20**

- What is Fermi Level? How this level is modified when we add
**(a)**P-type**(b)**n-type impurity to the intrinsic semiconductor. - Calculate the barrier potential at room temperature for p-n junction is silicon, which is doped to a carrier density 10
^{22 }m^{-3}of on the p-side and 22^{22}m^{-3}on the n-side. The intrinsic carrier density for silicon is 1.4 × 10^{16}m^{-3.}^{} - Explain the following:
**(a)**Transition capacitance**(b)**Diffusion capacitance**(c)**Diode resistance - Describe the bridge rectifier. How does it differ from F.W. rectifier using two diodes only. What do you understand by PIV?
- Calculate the ripple factor and conversion efficiency of half wave rectifier.
- A full wave rectifier delivers 50 W to a load of 200 ohm. If the ripple factor is 1%. Calculate AC ripple voltage across the load.

Q2:- Attempt any **four **of the following:

UTTARAKHAND TECHNICAL UNIVERSITY

(SEM III) ODD SEM EXAMINATION,

2010-2011

SUB:- ENGINEERING ECONOMICS & COSTING

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Explain IRR and its advantages.
- Differentiate between future worth and present worth.
- Differentiate simple interest and compound interest,
- Explain Break even analysis.
- What is cash flow diagram and its advantages?
- Find the worth of Rs. 5000 after two years if interest paid is 1% monthly compounded monthly.

Q2:- Attempt any **four **of the following :

Total marks :**50**

Q1:- Attempt any **four** of the following :

- If
**Π**=**22/7**is approximated as**3:14**, find the absolute error, relative errors and percentage error. - Describe briefly the floating point representation of numbers.
- Find a real root of the equation
correct to four decimal places using iteration method.*2x – log*_{10}x =7 - Use Muller's method to find a root of the following equation.
*x*^{3}-x-1=0 - Define rate of convergence. Obtain rate of convergence of Newton Raphson method.
- Calculate the value of
by Newton's Raphson method, correct to 3 decimal places.**(31)**^{1/4}

time : 2hr]

Total marks :**50**

Q1:- Attempt any **three** of the following :

- Define Software Engineering and how it is different from conventional engineering process?
- Should a development organization adapt a single process model for all its software development? Discuss the pros and cons?
- Write down major characteristics of software. Illustrate with a diagram that the software does not wear-out.
- Describe the various steps in software development life cycle? Explain the Spiral Model in details.

time : 3hr]

Total marks :**100**

Q1:- Attempt any **two** of the following :

**10x2=20**

- Describe the principle of energy conversion. For singly excited magnetic system, derive the relation for the magnetic stored energy in terms of reluctance.
- Define field energy and co-energy. Give the significance of co-energy in the derivation of torque or force in an electromechanical energy conversion device.
- State and briefly explain the various phenomenon useful for the electromechanical energy conversion in rotating machines. Also derive an expression for reluctance torque in a rotating electrical machine.

time : 3hr]

Total marks :**100**

- Describe how UNIX is more secured than other operating systems.
- How many types of editors we can use in UNIX operating system. What are the main functions of vi editors.
- Explain the purpose of include files in UNIX.
- Explain the role of file descriptors, file table and Incode table in Unix File System.
- Draw the block diagram of Unix system kernel. Explain various components.

Q2:- Attempt any **four** of the following :

SEM-III, 2011-12

B.TECH EXAMINATION

UTTARAKHAND TECHNICAL UNIVERSITY

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Convert the following numbers with the indicated bases to decimal :
**(a)**(198)_{12(b) (735)8 (c) }(16.5)_{16} _{Convert decimal +46 and +29 to binary, using the signed 2's complement representation and enough digits to accommodate the numbers. Then (+29) + (-42).}- Represent the decimal number 5137 in
**(a)**BCD**(b)**Excess -3 code**(c)**8421 code. - Express the following function as a sum of minterms and as a product of maxterms :

F(A, B, C, D) = B'D = A'D = BD. - Minimize the following expression using K-map :

F(A, B, C) = (1, 2, 6, 7) + d (0, 5). - Discuss the Hamming code? How does it detect and correct single error?

SEM-IV, 2012

B.TECH EXAMINATION

UTTARAKHAND TECHNICAL UNIVERSITY

(UTU)

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Define the following terms:
**(a)**Data redundancy and consistency**(b)**Referential Integrity**(c)**Data atomicity**(d)**Domain Constraint**(e)**Data Models - Explain the concept of keys in DBMS. Also describe the different types of keys in details.
- Draw an E-R diagram for a hospital with a set of patients and a set of medical doctors, with each patient a of the various conducted tests is also associated.
- Explain two-tier and three-tier architecture of DBMS in details.
- What do you mean database language and interfaces? What is the difference between DDL and DML? Explain.
- Discuss the candidate key, primary key, super key, composite key and alternate key.

time:- **3 hr**}

Total Marks:100

**Section A**

Note:- Attempt all questions. All question carry equal marks.

Q1 Attempt any four parts of the following:-

- Solve:

[y²e^{xy²}+ 4x^{3}]dx +[2xye^{xy²}- 3y^{2}]dy =0 - Solve:(1+y²)dx =(tan
^{_1}y –x)dy - Solve:

(D^{2}-2D+1)y = xsinx - Solve:dx/dt + 2x -3y = t, dy/dt -3x + 2y =e
^{2t} - Solve:d²y/dx² + cotx dy/dx + 4y cosec²x =0
^{}by changing the independent variable. - Apply the method of variation of parameter to solve:

d²y/dx² +n²_{4 }= secnx**Section B**

time : 3hr]

Total marks :**100**

Q1:- Attempt any **four** of the following :

- Describe time and space complexity. Discuss best, average and worst case for finding a given number from an array of integers.
- Explain the difference types of data structure. What data structure will you use to store the information of students of your class? Why?
- Make a function in C which takes an array of names as input and return the number of palindromes in it.
- Write a complete program in C to implement stack using liked list.
- Write an algorithm to evaluate postfix expression. Convert the following infix expression into equivalent postfix expression.

(a+b) ͯ c-d + e / (f-g) - What is recurssion? What is the significance of using recursive function to print Fibonacci number up to the given number.

- Write a function in C to reverse a given queue.
- What is priority queue? How it is implemented? Take an example to show your implementation.
- Devise function in C which check for Full and Empty for a circular queue. Also find out the number of elements in circular queue.
- Write a program in C to find the given item in a single linked list. Also analyze the running time of your program.
- Devise insertion and deletion function for doubly linked list.
- Explain Garbage Collection and Compaction.

**(a)**Define a tree. Explain the difference type of binary tree. What is predecessor and successor of node in a binary search tree?**(b)**Prove that the number of nodes n in a perfect binary tree can be found using this formula : n=2^{h+1}- 1 where h is the height of the tree.**(a)**Discuss the usage of threaded binary tree.**(b)**Show the working of Huffman algorithm.- Write a pseudo code for insertion and deletion in Binary Search Tree. Find out the running time of insertion and deletion in binary search Tree.

- Can we use Binary search technique everywhere? Justify your answer. Analyze best, average and worst case behavior of binary search. Shoe the steps of binary search for finding 28 in the given list of numbers.

2, 7, 12, 15, 18, 20, 22, 26, 28, 30, 33, 36, 39, 40, 45, 50 - What is Hash table? What is the purpose of using hash table is more beneficial as compared to its contemporary techniques.
- Write pseudo code for heap sort. Analyze its running time. Perform heap sort on following list of integers.

21, 1, 34, 28, 6, 85, 23, 17, 22, 80, 11, 2, 7, 25

- How the files are organized on physical storage media? Explain in detail.
**(a)**Explain the organization of sequential file.**(b)**What is B+ tree? Explain its usage.- Write short notes on any
**two**:**(a)**Indexing**(b)**Hashing**(c)**Indices.

--------------------*utu previous year question papers of B.tech, Bba, B.com, B.sc and Mba old year question papers Uttarakhand technical University (UTU)*-----------------------

Good luck !!!

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