production engineering i(2003)

8/18/2019 Production Engineering I(2003)

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No.

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Queslions-l2] lTotal

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printed

pages___4+l

[3762]'34

S.E.

Mech.

(S/W)

(First

Sernester) EXAMINATION,

2010

. PRODUCTIONENGINEERING-I

"

(2OOS

COIIRSE)

Time

; Three Hours

Maximum

Marks

:

100

N.B, :-

(l)

Answer

t

r€e

questions

rom

Section

I

and three

questions

Irom

Sectron II_

(ii)

Answers

to the two Sections

should

be

written in

separate

Answer-books.

(lil)

Neat

diagrams must

be drawn

wherever necessary.

(iu)

Use

o{ logarithmic

ables,

slide rule,

Mollier

charts,

eiectronic

pocket

calculator

and

steam tables

is

allowed.

(u)

Assume

suitable

data,

if

necessary.

Section I

Unit I

t .

{o)

what

are

the main

const i tuents

of

a moulding

sand ?

How

are

binders classified

? Narne

a

few

binders

of each

.

tlre.

t6l

(6)

Describe

with,the

help of

a

neat

sketch,.the

working

of a

sweep pattem stating its advantages.

.t6l

.

tc

what

rs flser

/ what is

meant

by the

term

,riseringi

? What

advantages

are

provided

by a riser

?

t6l


2/5

, O r

2.

(a)

Draw

a

neat

cross-sectional

ketch

of a cupola indicating

.

v4rioqs

zones.and

describe the following

:

{ i

)

tLs

const ruc l , ton

(ll)

Different zones

and their functions

v l l

)

Aovan lagcs

ot us lng r t .

(ar)

What is

continuous

casting ? Describe

the continucius

cast ing

process

in detai l stat ing

i ts

advantages

and

disadvantages.

What are the various non-destructive testiirg

' . ;

lbr

inspcction

oi

casting ?

State

advantages

of

any three methods.

Unit II

t6l

(o)

Describe

he

process

of cold spinning

with neat

sketch, stating

its advantages

and specific use.

16l

(b) With the help of neat sketch and exampleexplain the working

its

t6l

(c)

t6l

methods used

and limitations

t6l

State its

141

(c)

of

progressive

die.

What

are the

cornmon

forging

defects ?

reasons.

' O r

Neatly

draw the

process

to

Exptaln lne Io owrng press

(l)

Blanking

Ql

)

Uormng

2

aTaw wlre

ano

exptaln.

working operations :

t41

.

(o)

(b)

137621-34


3/5

5.

t 1

j

r le rc t

ng

'

(lu)

Lancing

t6l

(c)

With a neat

figure explain 2-high

and

3-high rolling

mill.

[6]

Unit III

\a )

Discuss

.

he

weldability

of :

(t)

Aluminiurn

( r i r

S tee l

(rlr)

Slainlcss

st"eel

(lu)

Cast

iron.

With

the help

of

neat

.sketch,

explain

the

'Thermit

Welding,

stating

its

merits and demerits.

t8l

Or

Explarn

the

process

ot

'stud

Wetdlng'

n

short.

t4l

.Uxplain

diflerent t)?es

of

joints

and

welding

positions

used

in welding with neat sketch. t61

(b)

6.

(a)

(b)

(c)

Write

shoit notes

on

:

(l)

Braze

welding

(il)

Projcction

welding

SECTION II

Unit

IV

Sketch

and

explain the construction

and working

of the

tailstock

of a lathe..

t6l

3

t61

7.

(a)

137621-34


4/5

the

following

:

(b)

8;

(c)

(a)

(b)

(c)

S k e t c h ' u r n g t e

tool'

and

t4l

the common methods

tapers

are

comrnonlY

t6l

show

all

angles

on

it.

Describe

he

following

operations

performed

bn

dketch

:

(i )

Drilling

{ii

I

Parting

off.

What

are

mandrels

and.

why

are

they

used

?

tlpes of mandrels You know'

Unit

V

Sketch

and

describe

a

'Rotary

table'

or

'Continuous

milling'

machine

.stating

its

main

advantage

t6l

for

51

divisions'

The

hole

circles

Calculate

compound

ndexlng

avaitable

are

:

PIate-I

15,

16,

L?,

18

19,

20''

PJate-II

21,

23,

27,

29,

3 '

33'

Plate-III

37,

.3g,

4r,

+i,

+1,

+s'

t6l

4

t4l

Iathe

with

neat

t6l

Sketch

different

t6l

9.

(o)

(b)

137621-34


5/5

a' twist

dril

?

D6scribe

Intlian

t41

applied

to

grinding

What

and

a

n9a

o

rL.

10.

used

lor

ctampmg

the

work

.

t41

state

what

of

cut.

. r - - r ^-^-^d-d +-t r r+d in dndrng

wneer, t+l

slrul

|? vPer4uurli

Desgibe

tho

procetlure

of

mounting

the

grinding wheel'

[6]

What are

thd,

cominon

wheel

shapes

used

in

grinding work

?

Sketch and describe in short.

16l

(c)

@)

11.

(o)

\ o )

t8l

t6l

Or

L2.

(a)

How

is

a

grindirrg wheel

marked

(coded)

standard

marhing

systcm

witb

cxample'

(6)

Explain

he terms

Loading'

and

Glazingi

as

wheels.

t6l

and

16l

(e)

iO,

OZI:o+

lVhat is suPerfrnishing-?

honing

?

How does t differ from IaPPing

production engineering i(2003)

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