gate chemical engineering 1998

8/20/2019 GATE Chemical Engineering 1998

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IGATE 1998

CHEMIC L ENGINEERING

SECTION

A

ONE

MARKS QUESTIONS (1-25)

Write.

in

t

he

boxes provided ln your Mswer

(boxes I to 2,5) the most appropriate

ans\1

ar to the

followtng 111ultlp le choice questions

by

wri ting the

letters - A B, C or 0 - agmnsl subqu

es ti

on

Jtumber. (25 x i

:

25

t

lJ

Mks)

I. '11\e transform

of

Function

e '

has

the form ·

3.

4,

I

c.

I

d. f +


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I() A globe voh'c is most fQr

llpplieahon

;;

In

wh1w l l < > ~ r o l is requU:ecl,

c,

th

e

nllid co

nlnin

• d f ~ r t n c l ~ .

d.

{)tl: -\1

uy n

uw s roq,llircd.

U The hydraulic r o d i ~ U l(lr now in o

rectansula•

l

ho

ct

of c r o ~ t o n a J

~ II. w

o$

~ f ?

W

h

l l l •W)

Hll')'

0.

4

(1-1

•W)

u rn

d.

(ff +

W)

1 2.

ln e work ind

e:<

in Bond·, l•w for crushing

of


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w w

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m r a c e

. c o m

K(s · l) will hove a

8

(28

- l}(: s i 1)

dofina

nnmbor variation of K

fmm

0

In


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42

45

b. Inn

er ~ o l y •

oore vf rndi

us l t

2 doe1

n

ot

participate fn reaction

c. I

nn

er c.ore llf radius

1R

'8 l.l(>cs

nut

pnrtic i

patc in

cl F.llec

ti

vene.• foctur t w

•

zero Q

rd

er

ltl:tction cnnn c1t he 711 >S

it

mlll\1

lllwav

l be

I,

t

dC I bring about uamain ehans.:

in the l bte

}'j;te.m omi CI' adiab

:tt

ie

l

undi l

in

ut-.

: 'r

he :1lllO

Unl

o f wo

rk is

palh

deren

dent.

h Work alone .:.>nll ll bring ab11ui such. a

clutn

ge

n lat.,,

c. '

lb

c nmouot or " 'o

rk

needed

i•

independent o poth.

d.

o

uuouuatluu is nooded to

anything Jboul tho path

or

O

berwise

of

the wo

rt<

tteeded,

l f

U1

e beat of

1o

lu

lio

n of n id

l. r'

2.$

tJrvt

lose<

l to "

(to mt.,gral

with

I e r

fu

ij

cliop-

1

- , When

;s

a step clranllc

rn

set point Is •pplicd to s uch

a do.sed loop

;-ys

tem,

th

e co

nt

ro

ll

ed

vatia

bl

e

wi

th

ex

lc

iliil

a. 6vc

rdaJn

ped

r""pn

ns

e

b.

Ll

nd


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11

only i f

UlC r.pening is on lite p h e r i

ves>el.

b. unly ir the

i" 11n

ve.tiCill

.,yliudric;, l vcssu

l.

c,

only

i f ite opening is

on •

n l l ~ c m t r t l

cyl

in

(lric3

l

\1\:sij¢

\.

tL irrc:sp J V c : b ~ c of moderAte

helghl.

the weld

joint t f r c t e n e y t or

join

iS

p ~ m l l e l

to the

cylinder is

si"e"

as 1.0

"hilc li '

joinl• nloug tloc

irth

( c i r c

u m f

~ : r e n c c )

i t

is given

liS

0.8. l l i

calculating the

shell wall i c k n e s s

u. I(Unntit

)'

uf J)urc ntllk.'YS""

to

he u J > J l l . i e < ~ in

kglh,

in

stcody

S

lat

e

Qp er ill inn

.

(iii

Draw •

t Coat blocl.. diaJ ,r•m h o w i n ~ t

tho- t llljor

units,

iltJW& an d c o m o ~ i t i o n s .

nnd

jndicote

the e n v e ~ c

bO\Indar

y

~ t r o u which the ,quisitc

mollS balnncc:(s

)

I

arc bcinS

mode.

·

n,

e

elevant

rooctlun

il

rcptC.1ent

cd

by

K':..t t.; • a, •

2c,u .

o

(g) (g) (g)

IAl>swnc

a

tmtLi

c m•sses

os:

C - 1

2,0 ~ J.

a. Ohu in an expression for

U1

e pres•ure

drop

on

the pipe (

\P

} In lenns

of

the

1

ulurue llow rnte I()

}.

b.

Obtain an ex prcfisioo

Jbr the sh:ody

opcratlng

now

rote

in

tbe sy•

t"111,

llSs

um

in9 t

hn

t

th

e only pressure h•

ss ln

llt

csyst


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.

I>S.

67.

The rndin•

of th

e

jet

far

from

the

~ l a g n n t i

j)Otnl

(0) is

11. :md the ~ i t y

is

u. A s . ~ u m Ut

e lluw

Ill

be

find

l l ~ i s y n u u o t

r k , and ncijlccl grav

it

y. Also

" " ~ ' " 1 1 " tluu

the w l

oo

it

y

prqfil

es •1" Ant

(iotirom

th

e

n u t i < p ~ ~ i n L

fhe

presl Uttt

llulSi(lt> the ,icl iR :iUitoSphCJic UIIU tll

e

dl

'll thntthe

bubhles

OIC well

separated

rrom each

o

th

er. The

bubbl


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gate chemical engineering 1998

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