ANIL NEERUKONDA INSTITUTE OF TECHNOLOGY & sCIENCES UGC AUTONOMOUs

(Permanently Afiliated to Andhra University, Approved by AICTE, Aceredited by NBA & NAAC with'A' Grade) SANGIVALASA -531 162, BHEEMUNIPATNAM MANDAL, VISAKHAPATNAM DT. NANAM BRA

ANITS Date: 15-04-2021

1/IV B.TECH I-SEMESTER REGULAR EXAMINATIONS: MAY-2021

REGULATION: R20 DATE, DAY & TIME CHEMICAL CIVIL ECE IT EEE MECH CSE

06/05/2021 Engineering Engineering Engineering

Mathematics I Engineering Engineering Engineering Engineering

(Thursday) 10.00 AM-12.40 PM

Mathematics I Mathematics I Mathematics I Mathematics I Mathematics I Mathematics

08/05/2021 Communicative Communicative Engineering Physics

Engineering Physics

Communicative Engineering Physics

Engineering Physics (Saturday)

10.00 AM-12.40 PM English English English

10/05/2021 Engineering Chemistry

Basic Electronics Basic Electronics Engineering Chemistry

Engineering Chemistry

Engineering Chemistry

Basic Electronics (Monday)

10.00 AM-12.40 PM Engineering Engineering

12/05/2021 Problem solving with| Problem solving with C

Problem solving Engineering Graphics

Engineering

Graphics Engineering

Graphics Engineering

Graphics with C (Wednesday) 10.00 AM-12.40 PM

C

14/05/2021 Introduction to Principles of Fundaments of Building

Technolog9yDigital Logic

Design Digital Logic

Design Chemical Electrical Information (Friday)

10.00 AM-12.40 PM Engineering Engineering Technology

is|u12o2) PRINCIPAL

(Prof.T.V Hanumantha Rao) CONTROLLER OF EXAMINATIONS

(Prof. N.V.N Indra KIran) Dean & cOE

ANITS Sangivalasa

Visakhepatnam

TIneiPal Anil Neerukonda Institute o

Tech:.ology & Sciences Sangivalasa-53! 162 16akhapatnan Dis

ANIL NEERUKONDA INSTITUTE oF TECHNOLOGY & SCIENCES

UGC AUTONOMOUS

4NAN BRA

ANITS

(Permanently Affiliated to Andhra University, Approved by AICTE, Accredited by NBA & NAAC with 'A' Grade)

SANGIVALASA -531 162, BHEEMUNIPATNAM MANDAL, VISAKHAPATNAM DT.

Date: 15-04-2021

1/IV B.TECH 1-SEMESTER SUPPLEMENTARY EXAMINATIONS: MAY-2021

REGULATION: R19

DATE, DAY & TIME CHEMICAL CIVIL EEE MECH ECE CSE IT

06/05/2021 Engineering Engineering Mathematics -

Engineering Engineering Mathematics I

Engineering Mathematics - I

Engineering Engineering Mathematics I Mathematics I Mathematics I (Thursday)

10.00 AM-12.40 PM Mathematics I

08/05/2021 Communicative Communicative Communicative Engineering

Physics Engineering

Physics Engineering

Physics Engineering

Physics English English English (Saturday) 10.00 AM-12.40 PM

10/05/2021 Basic Electronics Basic Electronics Basic Electronics Engineering Chemistry

Engineering

Chemistry Engineering Chemistry

Engineering Chemistry (Monday) Engineering Engineering Engineering

10.00 AM-12.40 PM 12/05/2021 Problem solving

Engineering Drawing

Engineering Drawing

EngineeringDrawing

Engineering Drawing

Problem solving with Problem solving with C C with (Wednesday)

10.00 AM-12.40 PM Fundaments of Principles of

Electrical 14/05/2021 Introduction to

Building Technolog9Y

Digital Logic Design

Digital Logic Design Chemical Information

(Friday) Engineering Technology Engineering 10.00 AM-12.40 PM

Isl)2L

PRINCIPAL (Prof.T.V Hanumantha Rao)

Principa An Neerukonda Institute of

Techoogy & Sciences Sangva' asa-531 162

CONTROLLER OF EXAMINATIONS

(Prof. Ndra KIran)

ANITS

8angvalaa Visakhapatnem

ISakhanotn

ANIL NEERUKONDA INSTITUTE OF TECHNOILOGY & SCIENCES

UGC AUTONOMOUS

BRAHDA

ANITS

(Permanently Affiliated to Andhra University, Approved by AICTE, Aceredited by NBA & NAAC with 'A' Grade)

SANGIVALASA -531 162, BHEEMUNIPATNAM MANDAL, VISAKHAPATNAM DT. AGNANAM Date: 15-04-2021

I/IV B.TECH I-SEMESTER SUPPLEMENTARY EXAMINATIONS: MAY-2021

REGULATION: R15

DATE, DAY & TIME CHEMICAL CIVIL CSE ECE EEE IT MECH

06/05/2021 ENGLISH ENGLISH ENGLISH ENGLISH ENGLISH ENGLISH ENGLISH

(Thursday) 10.00 AM-12.40 PM_

08/05/2021 Engineering Mathematics I

Engineering Engineering Engineering Mathematics I

Engineering Mathematics I

Engineering Mathematics I Mathematics I

Engineering (Saturday)

10.00 AM-12.40 PM Mathematics I Mathematics - I

10/05/2021 Engineering Physics

Basic Electronics Engineering Physics

Engineering Physics

Basic Electronics Engineering Physics

Engineering Physics (Monday)

10.00 AM- 12.40 PMEngineering Engineering

12/05/2021 Environmental Engineering Chemistry

Environmental Engineering Chemistry

Engineering Chemistry

Environmental Environmental Sciences Sciences (Wednesday)

10.00 AM -12.40 PM1 Sciences Sciences

14/05/2021 Professional Professional Professional Engineering

Drawing Engineering

Drawing Engineering

Drawing Engineering

Drawing Ethics & Human Ethics& Human Ethics & Human

(Friday) 10.00 AM- 12.40 PM

Values Values Values

ulot)

PRINCIPAL (Prof.T.V Hanumantha Rao)

Principal Anil Neerukonda institute o

Technology & Sciences

Sangivalasa-531 162

iaakiDatnan Dis'

cONTROLLER OF EXAMINATIONS (Prof. N.v.N Indra KIran)

Dean& cOEANITS

Sangivaleea Viakhapatnam

Model Question Paper ANIL NEERUKONDA INSTITUTE OF TECHNOLOGY & SCIENCES

(AUTONOMOUS)I/AV B.Tech I Semester Regular & Supplementary Examinations

Time: 2 hrs 40 minutes Max Marks: 4x15M=60M Answer ANY FOUR Questions one question from each Unit

All Questions Carry Equal Marks (15 marks)

All parts of the questions must be answered at one place only.

Q. No. Questions Marks CO| BL UNIT -I

Define hardness? Explain the disadvantages of hard water while used for domestic, industrial and Steam generation

1) a) 7M CO L2

purpose. 1) b) Explain the different internal treatment methods for prevention 8M CO1| L3

of scales in boilers? Mention the advantage of calgon conditioning over phosphate conditioning.

OR

2) a) CO1 L2 Calculate the temporary, permanent and total hardness of a water sample

Mg(HCO3)2-7.3 CaSO4-13.6and MgCl2=9.5 mg/L. Is the water sample is

suitable for high pressure boilers or not. Describe the process of water softening by demineralizationprocess with a neat sketch. Comment on suitability of this process when such soften water is used in high pressure

boilers.

7M

containing the

mg/L, following

Ca(HCO)2-16.2 parameters:

mg/L,

2) b) 8M CO1 L3

UNIT -II 3) a) Discuss electrochemical series in detail with its applications? 7M CO2 L2

Explain the construction and working of hydrogen-oxygenfuel cell? What are the advantages of fuel cells over other

cells?

3) b) 8M CO2L2

OR 4) a) What is a photovoltaic cell? Mention its applications. 7M Co2 L2

4) b) Define reference electrode? Describe the construction and 8M CO2 L2 working of calomel electrode with neat sketch?

UNIT-III 5) a) Compare and exemplify galvanic corrosion and concentration 7M CO3 L3

cell corrosion.

5) b) What is electrochemical corrosion'? Describe its mechanism by hydrogen evolution and oxygen absorption?

M CO3 L2

OR

CO3 L3 Comment on the use of aluminum in place of zinc for cathodic protection of iron from rusting?

6) a) 7M

6) b) What are the objectives of electroplating? Explain Nickel 8M C03 L2

Plating? UNIT-IV

What are organie semiconductors? Give examples and their 7) a) 7M CO4 LI

uses?

7) b) What is doping? Explain the role of n-type and p-type dopants 8M C04 L2

on band structures?

OR 8) a) List out the engineering applications of ceramics? 7M C04 LI

8) b) 8M C04 L2 Explain the chemical reactions involved in setting and

hardening of cement??

UNIT-V 9) a) How is the chemical synthesis of nanoparticles done by Sol- 7M CO5 L2

Gel process?

9) b) Describe principle and working of Scanning Electron 8M CO5 L3

Microscope wit neat sketch.

OR

10) a) Which properties of Smart polymers make them to select for sensor applications and mention their types?

7M CO5 L2

COS L3 10) b) Compare different types of composites materials with their salient properties and give their applications?

8M

*****

Isno

Dean & COE ANITS

Sangivaleca Visakhapatnem