step4success club

By The Students of Doon Group of Institution

step4success

In order to succeed, your desire for success should be greater than your fear of failure. Bill Cosby

step4success club

Oppurtunites come from creation, not by chance

step4success club

It is not bad that you don't have certain skill, but it is truly bad if you don't want to learn.

Monday, 27 July 2015

Biomedical Instrumentation

UTTARAKHAND TECHNICAL UNIVERSITY
B.Tech Electrical & Electronics Engineering
(8th Semester) Examination 2015
Biomedical Instrumentation

Time: 3.00  Hrs]                                                                                                           [Max. Marks: 100 
Note: All questions are compulsory.
1. Attempt any four                                                                                                       4*5=20
  1. What is patient care monitoring? Explain its component in brief. What are the problems  associated with it?
  2. Explain the Holter Monitor in brief and list some difference between ICU and CCU.
  3. Give a brief classification of instruments for diagnosis of X-rays & explain anuone of them.
  4. Explain action and resting potential with complete waveform.
  5. What are the different methods adopted for accident prevent during chemical test in Biomedical Instrumentation.
  6. What do you understand from Ultrasonic measurement?
2. Attempt any four                                                                                                        4*5=20
  1. Explain the following in context with biomedical Instrumentation- 
  • Galvanic skin response 
  • Invitro and in vivo measurement 
  • EMG
  • Plethysmography
  • Cardiac stress test
  • ECG recording  
3. Attempt any two                                                                                                         2*10=20
  1. Explain the application of pacemakers in heart patients. What is Fibrillation and how it can be dangerous for a patient.
  2. Explain the neuronal firing measurement mechanism in context to the neural communication in human being.
  3. Explain the DC detibrillator in detail.
4. Attempt any two                                                                                                         2*10=20
  1. Explain the active and passive transducers in detail with their classification and their importance in biomedical field.
  2. Discuss intensive care system and its components in brief? Explain the electrodes used in biomedical system.
  3. How blood volume is measured in human being. Why human pulse rate is less than that of birds. Explain with waveform.
5. Attempt any two                                                                                                        2*10=20
  1. Explain the bioelectric amplifier with its circuit and briefly expalin its application.
  2. Discuss the cardiovascular system of human being with proper block diagram.
  3. What is TMT test? Explain the working principle of a transducer also explain speed of response and accuracy in context with measuring device.
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Thursday, 28 May 2015

VLSI Technology

VLSI TECHNOLOGY
SEM-VI, 2014
B.TECH EXAMINATION
UTTARAKHAND TECHNICAL UNIVERSITY
 (UTU)
Time: 3hours
Total marks: 100
Q1. Attempt any Four:

A.      Describe and discuss various features of ICs with respect to discrete integral circuits.
B.      What are the various steps involved in the manufacturing of monolithic IC.
C.      Why oxidation is done? Explain the chemistry of oxidation and kinetics of oxide growth.
D.      A silicon wafer with p type doping of 1015 is heated at 1000 C for 1 hour in day oxygen. How much oxide has been grown?
E.       Describe a CZ furnace. What are its advantages?
F.       All modern silicon MOSFET’s are fabricated on <100> oriented Si substrate. Why?

Q2. Attempt any four:

A.      What are the process variables which affect the diffusion process? Explain.
B.      What is optical growth? What is the advantage of epitaxial process over diffusion and Czo kralski process?
C.      What is Fick’s Law? Explain it’s important in theory of diffusion.
D.      What is the MBE system? Explain with diagram.
E.       Write short note on
                            i.          Photo mask and photo resist.
                           ii.          Photo lithography techniques.
                                F.       Does the thickness of the epitaxial wafer pose a problem in epitaxial processing from a stress view point? Discuss your answer.

                                Q3. Attempt any Two:

                                A.      Compare X- ray and ion- beam lithography.
                                B.      What is etching? Explain its different types and write advantages & disadvantages of each.
                                C.      What are proximity and projection printers? Explain.

                                Q4. Attempt any Two:

A.      What is metallization? Write its application and problem areas associated with it. Explain in brief.
B.      Why depletion MOSFET is so called? Explain the operating and characteristics of n- channel depletion type MOSFET with suitable sketches.
C.      (1) Draw the block diagram of 1 bit SRAM.
         (2) Sketch the circuit diagram of a ratio less MOS inverter. Explain its operation.

Q5. Attempt any Two:

A.      What are yield losses in VLSI? How they are modeled? What is its role in VLSI testing?
B.      Explain VLSI assembly technologies.
C.      Describe the commonly used VLSI testing procedures.

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Thursday, 15 January 2015

sub - Switchgear and protection Utu previous year question papers

B.tech Examination papers dec 2014
sub - Switchgear and protection
Utu previous year question papers
uttarakhand technical university previous question papers





Time : 3 hrs
Q1: Attempt any four :

  1. Explain static relay and write its merits and demerits.
  2. Explain electromagnetic impedance relay.
  3. What are the various types of over current relays? Discuss their are of applications.
  4. Explain Directional Over-current relay?
  5. The current rating of a relay is 5A. PSM=2, TSM=0.3, CT ratio=400/5, fault current= 4000A. Determine the operating time of the relay. At TMS= 1, operating time various PSM are:
    PSM=                                2         4        5        8        10        20
    operating time in seconds=  10       5        4        3       2.8        2.4