Basic Technical Communication, B.tech

Uttarakhand Technical University

B.tech (sem. 2nd) 

2012

Basic Technical Communication

time : 3hr]
total marks : 100 }

Note : Attempt all questions. It has five sections, every section contain 20 marks.

Section A

Q1:- Attempt any two of the following :

1. "Communication is a process of sharing or exchange information between two or more persons." Discuss in detail.
2. What are the barriers to communication? Elaborate briefly each category of barriers.
3. How is language a tool of communication? Discuss the characteristics of language.

Q2:- Attempt any one of the following :

1. Technical writing and general writing.
2. Levels of communication.

Section B

Q3:- Attempt any two of the following :

1. What are the different types of reading skills? Discuss
   OR
   Suggest the one word for the following.
   (a) A person who does not believe in GOD.
   (b) A list of books.
   (c) A hater of mankind.
   (d) Using more words than necessary.
   (e) One who draws mas.
2. What are the techniques used by the technical writers to make a paragraph coherent?
   OR
   Distinguish between Chronological and Linear methods as significant tools of good technical composition. How these are helpful to a professional ?
3. What are the guidelines for good conversation according to Francis Bacon? Discuss in detail.
   OR
   How is Unity of Minds helpful in the progress of country? Discuss.

Q4:- Attempt any one of the following :

1. Paragraph writing.
2. Skimming and scamming.

Section C

Q5:- Attempt any two of the following.

1. Define technical writing, giving the objectives of improving the writing skills.
2. "Whatsoever be the type or form of a sentence, it should be shaped in such a way that it could have its unique impression on the reader. "Discuss.
3. Write a letter to your friend telling about your first day experience at your engineering college.

Q6:- Attempt any one of the following :

1.  Art of condensation
2. Types of sentences.

Section D

Q7:- Attempt any two of the following :

1. Discuss the process of listening and factors that affect listening.
2. "Romance at short notice was her specialty." Do you agree with this statement of Vera's character?
3. What is the main theme of the story After Twenty Years?

Q8:- Attempt any of the following :

1. Types of listening.
2. Character sketch of Wasserkopf.

Section E

Q9:- Attempt any two of the following :

1. What are the objectives of improving the speaking skills? Explain.
2. What is intonation? What are different kinds of tones? Explain briefly.
3. What is meant by accent? Give examples of some of the accentual patterns in the words of two and three syllables.

Q10:- Attempt any one of the following :

1. Organs of speech.
2. Phonetic Transcription.

Basic Electrical Engineering, utu first year b.tech

Uttarakhand Tech. University

B.Tech First year, 2012

sub :- Basic Electrical Engineering

Time :- 3 hrs}

Total marks : 100]

Q1:- Attempt any four parts of the following :

1. he Norton's and Thevenin's theorem. Also discuss about the duality of Norton's and Thevenin's Theorem.
2. Use Nodal Analysis to find out the current in 4Ω. Resistor of Fig.1

   

   fig. 1.

     
3. Apply Norton's theorem to calculate current following through 10Ω. Resistor of Fig.2

   

   fig 2. 
4. Using Delta-Star Transformation Theorem calculate current from the supply voltage 130 V shown in Fig.3.

   

   fig 3.
    

5. Distinguish the difference between following :
   (a) Active and Passive elements
   (b) Ideal voltage and Current source.
6. State and proof the maximum power transfer theorem.

Q2:- Attempt any four parts of the following :

1. Calculate the r.m.s value, the form factor and the peak factor of a periodic voltage having following values for the equal time interval changing suddenly from one value to the next.
   0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, -5, -10V etc.
   What would be the r.m.s. value of sine wave having same peak value ?
2. Explain the nature of power factor in two watt-meter method of three phase power when :
   (a) the two readings are equal and positive
   (b) the two readings are equal but opposite in sign and
   (c) one of the watt-meter reads zero
3. A capacitor of 25 mF is connected in series with a variable resistor. The circuit is connected across 50 Hz mains. Find the value of the resistor for a particular condition when the voltage across the capacitor is half the supply voltage.
4. Explain relative permeability. Calculate the mmf required to produce a flux of 0.015 Wb across an air gap 2.5 mm long an effective area of 200 cm².
5. An alternating current of peak value 45 A has the following wave forms in turn :
   (a) Sinusoidal
   (b) Full wave rectified sinusoidal
   (c) Rectangular and
   (d) Triangular
   Show the above wave forms and calculate average and r.m.s. value.
6. An iron ring of mean circumference 1.2m is uniformly wound with 400 turns of wire. When a current of 1.5 Amp is passed through the coil, a flux density of 1.25 Wb/ m² is produced in the iron. Find the relative permeability of iron under these conditions.

Q3:- Attempt any two of the following :

1. Explain the following :
   (a) Defecting Torque
   (b) Controlling Torque
   (c) Damping Torque
   Discuss the principle of operation and construction of PMMC type measuring instrument.
2. A single phase energy meter hours a constant of 1200 rev/kWh, When a load of 200 W is connected the disc rotate at 4.2 rev/min if the load is on for 10 hours, how many units are recorded as an error ? Also find percentage error.
3. Explain how does the input current adjust to meet out the new conditions, when the load current in the transformer increases ?
   Calculate the efficiency at half and full a 100 k VA transformer for p.f. of
   (a) unity
   (b) 0.8 The copper loss is 1000W at full load and iron loss is 1000W.

Q4:- Attempt any two parts of the following :

1. Three impedance each having a resistance of 20Ω and an inductive reactance of 18Ω are connected in star across a 400V, three phase supply. Calculate
   (a) the line current,
   (b) the power factor,
   (c) total power in kW.
2. Explain principle of operation of a DC generator. Also derive the E.M.F equation for DC generator. Also derive the E.M.F equation for DC generator.
3. A shunt generator has a full load current of 196A at 220V. The stray losses are 720 W and the shunt field resistance is 55 Ω . If it has a full load efficiency of 85%, find the armature resistance. Also, find the load current corresponding to maximum efficiency.

Q5:- Attempt any two of the following :

1. Explain the method of starting of 3 phase synchronous motor. Also discuss its application.
2. What do you mean by "slip" ? A three phase, 50 Hz, pole induction motor has a slip of 2% at on load and 4% at full load. Determine
   (a) synchronous speed
   (b) no load speed
   (c) full load speed
   (d) frequency of rotor current at stand still,
   (e) frequency of rotor current at full load.
3. Write short technical note on any two of the following :
   (a) Slip-Torque characteristics of 3 phase induction motor.
   (b) Construction and working of single phase capacitor start induction motor.
   (c) Basic elements of power system with help of single line diagram.

----XXXX----
Best of luck guys :)

sub:- (Electronics) B.tech first year question paper

Uttarakhand Technical University
B.tech (first year)

odd sem Examination, 2012,

sub :- Fundamental of Electronics

Engineering

time :- 3 hrs}

[Total Marks :100 ]

Note : Use of calculator is permitted. 

                                                              Section A

Q1:- Answer any 4 parts of the following :

 4*5=20

1. Explain intrinsic and extrinsic semiconductors by stating at least two examples of each.
2. Explain the basic concept of forbidden gap in semi conductors and discuss the effect of temperature on it.
3. Describe the formation of a p-n junction . Explain the depletion region and potential barrier.
4. Explain what do you understand by clipping circuit. Describe the working of the positive clipper.
5. Show that I_{E =}I_{B +} αI_{E +} I_{CBO .}   In what way  I_CBO  depend on temperature.
6. Explain the binary numbers . Taking 125.525 as an example, describe decimal to binary conversion.

Q2:- Attempt any four parts of the following :

4*5=20

1. Explain with the help of suitable diagram, how free electrons and holes contribute towards the electric current in a semiconductor.
2. Describe how n-type and p-type semi conductors are produced. State the main difference between them.
3. What do you understand by dc and ac resistance of a crystal diode. How will you find them using V-I characteristic.
4. Describe the various rating of Zener diode supplied by manufactures.
5. Calculate ac drain resistance , transconductance and amplification factor of a JFET with the help of following experimentally obtained data.V_{GS      0V                0V               -0.2V}
   V_{DS      7V                15V              15V}
   I_{D       10mA             10.25mA        9.65mA}
6. Draw the circuit of a practical single stage transistor amplifier. Explain the function of each     component.

Q3:- Attempt any two parts of the following :

2*10=20

1.  Describe half-wave rectifier and obtain an expression for the rectification efficiency of the half-wave rectifier is used to supply 12V dc to a resistive load R_L =500Ω. If the forward resistance of diode r_f  is 25Ω , find the rms value of ac voltage supplied to the circuit.
2. Explain the CB configuration of a transistor and draw its input and output characteristics.Describe      current amplification factor α collector current I_{C ,} input resistance r_i and output resistance r_o.
3. Draw the equivalent circuit of an ideal and actual zener diode. Explain V-I characteristics of a zener diode. Describe how it can be used as a shunt regulator.

Q4:- Attempt any two parts of the following :

2*10=20

1. Describe the construction and operating principle of JFET. State the advantage of JFET.  A JFET has a drain current of 5 mA . If  I_{DSS =} 10 mA and V_GS(OFF) = -6V, calculate the value of V_GS and pinch off voltage V_P.
2. Explain the need of transistor biasing circuit and state its essential requirements. Obtain the      expression for the stability factor S for CE configuration.
3. Draw an ac equivalent circuit of a single stage common emitter transistor amplifier and expression      for the voltage gain and power gain . An amplifier has an open circuit gain of 1000, an output resistance of 15Ω  and an input resistance of 7 KΩ  . It is supplied from a signal source of e.m.f 10 mV and internal resistance 3 KΩ . The amplifier feeds a load of 35Ω. Calculate the output voltage and power gain.

Q5:- Attempt any four parts of the following :

2*10=20

1.  What do you understand by an ideal operational amplifier ? Describe its characteristics and discuss lts limitations.In an op-amplifier ,the amplifier gain is 10000. The input series resistance feedback resistance are 100 KΩ and 500 KΩ respectively. If the input voltage is 1.0V, calculate output voltage. 
2. Describe NAND gate and NOR gate and discuss their characteristics. Explain why these are called as universal building blocks.
3. Describe the single variable theorem of Boolean algebra. With the help of truth tables, explain     associative and distributive laws.

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

Practice it and wish you all the best :)

sub (EVS) B.tech first year question paper

Uttarakhand Technical University

B.tech (first year)

odd sem Examination, 2012

sub :- Environmental Studies

time :- 2 hrs}

Note : Attempt all question each carry equal marks (each=01)

1.  The environment which has been modified by human activities is called

(a)    Natural environment

(b)   Anthropogenic environment 

(c)   Urban environment

(d)   Modern environment

2.  Drugs, fuel and wood derived from biodiversity represent

(a)   consumptive value

(b)   Productive value

(c)   Social value

(d)   None

3.  Which of the following is a biodiversity hotspot in India ?

(a)   Gulf of manner 

(b)   Sunderbans

(c)   Panchmarhi

(d)   Western ghats

4.  Which of the following is an endemic species of India ?

(a)   Asian Elephant 

(b)   Panda

(c)   Whales

(d)   Lion-tailed macaque

5.  Red data book is famous for

(a)   Extinct plants

(b)   Endangered animals

(c)   Endangered plants

(d)   Endangered plants and animals

6.  Where is the snow leopard found ?

(a)   Arunachal Pradesh 

(b)   Laddakh

(c)   Sikkim and Himachal Pardesh

(d)   All of these

7.  Which of the following is fast disappearing from India ?

(a)   Cheetah

(b)   Wolf

(c)   Leopard

(d)   Gaur

8.  Wildlife week is celebrated from/in

(a)   Monday of first week of Oct.

(b)   Monday of second week of Oct.

(c)   Any week of Oct.

(d)   Any week in winter.

9.  For which animal is Dachigam National Park is famous ?

(a)   Hangul (Kashmir stag)

(b)   Sambhar

(c)   Musk deer   

(d)   Spotted deer and Black Buck

10.  A highly endangered bird

(a)   Dodo of Mauritius

(b)  Great Indian Bustard of Rajasthan 

(c)   Pink headed duck of India

(d)   All of these

11.  Death while sleeping in closed room with burning coal furnace is due to

(a)   CO2

(b)   CO 

(c)   CCl4

(d)   SO2

12.  Maximum soil erosion takes place in

(a)  Grasslands

(b)   Urban areas 

(c)   Tropical forests 

(d)   Agricultural lands

13.  Bulk of energy that Indian consume comes from

(a)   Nuclear sources

(b)   Wind

(c)   Hydroelectric project 

(d)   Coal

14.  A society that cares of animals

(a)   Chipko 

(b)   Blue Cross

(c)   MAB

(d)   People

15.  Which ones occurs at the same tropic level

(a)   Crow and Cow

(b)   Snake and Earthworm

(c)   Tiger and Wild Bear

(d)   Deer and Bee

16.  Ecological pyramids are of types

(a)   Two

(b)   Three 

(c)   Four 

(d)   Five

17.  Lentic ecosystem occur in

(a)   Rain water

(b)   Running water

(c)   Standing water

(d)   Gravitational water

18.  Which type of waste is Produced in the maximum amount in a household

(a)   Plastic

(b)   Metal

(c)   Paper

(d)   Organic matter

19.  Sound limit in industry is

(a)   75 dB

(b)   55 dB

(c)   30 dB

(d)   45 dB

20.  The Chernobyl disaster in the then USSR was (now Ukraine) was caused on 26.4.1986 by a

(a)   Nuclear test 

(b)   Nuclear reactor accident

(c)   Nuclear waste disposal leak

(d)   Nuclear weapon accident

21.  Maximum threat to the world is form

(a)   Global warming

(b)   Ozone hole

(c)   Water pollution

(d)   Soil erosion

22.  What is Uttarakhand's State Animal ?

(a)   Spotted deer

(b)   Snow leopard 
(c)   Musk deer 

(d)   None

23.  Full form of FSI

(a)   Forest services of India

(b)   Forest special insurance 

(c)   Forest survey of India

(d)   None

24.  Tehri dam is constructed on

(a)   Sutlej river

(b)   Mahanadi

(c)   Bhagirathi

(d)   Alaknanda

25.  The most common indicator organism that represents polluted water is

(a)   Escherichia coli

(b)   Vibrio cholerae

(c)   Entamoeba coli

(d)   Entamoeba histolytica

26.  Nowadays , the buses of Delhi are running on

(a)   Liquefied Petroleum Gas (LPG)

(b)   Compressed Natural Gas (CNG)   

(c)   Compressed Lead Gas (CLG)

(d)   High speed diesel (HSD)

27.  The spread of the 'Stratosphere' above the Earth's surface is

(a)   Below 15 km

(b)   10 to 50 km

(c)   Above 50 km

(d)   Above 100 km

28.  The pungent smelling and light bluish gas in Stratosphere is due to

(a)   Carbon molecules

(b)   Ozone molecules

(c)   Nitrogen gas

(d)   Oxygen

29.  Ozone layer is found in

(a)   Ionosphere

(b)   Troposphere

(c)   Nitrogen gas

(d)   Oxygen

30.  Environment Day is celebrated on

(a)   8 June

(b)   Troposphere 

(c)   Stratosphere

(d)   All

31.  CFC stands for

(a)   Chloro Fluro Carbons

(b)   Carbon Fluorine Carbons

(c)   Compact Fluro Carbons

(d)   None of the above

32.  Blue baby syndrome is caused by the contamination of water due to

(a)   Phosphate

(b)   Sulphur

(c)   Cadmium

(d)   Nitrates

33.  The most important indoor pollutants is

(a)   SO

(b)   NO

(c)   CO

(d)   Random

34.  The main source of CFCs in household sector is__________

(a)   Televisions

(b)   Refrigerators

(c)   Washing Machines

(d)   All

35.  The destroying of forest results in

(a)   Soil erosion

(b)   Floods and drought

(c)   Loss of wildlife

(d)   All of these

36.  Leakage of methyl isocyanate (MIC) caused the biggest industrial disaster of the recent times in1984 (Bhopal Tragedy). What did the industrial plant manufacture where the leakage occurred ?

(a)   Fertilizer

(b)   Explosives

(c)   Pesticides 

(d)   Cement

37.  First National Park of India is

(a)   Kanha N.P.

(b)   Periyar N.P.

(c)   Corbett N.P.

(d)   Bandipur N.P

38.  World forest day celebrated on

(a)   21st March

(b)   27th March

(c)   22nd April

(d)   5th June

39.  Plantation of rows of trees along roads sides,rails,residential complexes , hospital and institutes is known as

(a)   Shelter belt

(b)   Green muffler 

(c)   Wind break

(d)   Both (a) and (c)

40.  Kaziranga National park is famous for

(a)   Tiger

(b)   Musk dear

(c)   Elephant 

(d)   Rhinoceros

41.  Minamata disease in Japan was caused by the contaminated of 

(a)   Hg

(b)   Fe

(c)   Cd

(d)   Zn

42.  Biomass energy can be obtained from 

(a)   Energy plantation 

(b)   Petro crop

(c)   Agricultural waste 

(d)   All of these

43.  Nuclear energy can be generated by

(a)   Nuclear fusion

(b)   Nuclear fission

(c)   Both

(d)   None

44.  Which of the following is responsible for desertification ?

(a)   Deforestation 

(b)   Overgrazing

(c)   Mining

(d)   All

45.  The Environmental Protection Act was enacted in

(a)   1986

(b)   1985

(c)   1987

(d)   1972

46.  The major green house gas is

(a)   ozone

(b)   CFCs 

(c)   Methane

(d)   Carbon dioxide

47.  Who amongst the following formed Narmada Bachow Andolan ?

(a)   S.L Bahuguna

(b)   Medha Patkar

(c)   Arundhati Roy

(d)   Javed Ali

48. Symbol of WWF is

(a)   Tiger

(b)   White bear

(c)   Rhododendron

(d)   Red Panda

49.  Which of the following could be the most important socio-economic impact of dams ?

(a)   Loss of biodiversity

(b)   Poorly managed involuntary displacement and loss of livelihood

(c)   Water logging

(d)   Loss of forests

50.  Which is not associated with structure of forest ?

(a)   Canopy

(b)   understory 

(c)   Forest floor 

(d)   First floor

---XXX---

Save your environment and best of luck :)