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8/20/2019 GATE Chemical Engineering 2003
1/12
w w
w . e x a
m r a c e
. c o m
IGATE - 2(l()l
I of 11
I
CHEMIC L ENGINEERING
·:::=::=====
I.
3
4.
5
6,
ONE M ARKS QUESTIONS 1·30)
A box
contains
6
red
balls
a
nd
4 green
bulls..
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
n..
parabolic
b, Ont
c. Jllll
ntor Ute
w•U
•nd
~ b o
It
o:
i.u
Ut >
m
lc
ldlc
d.
pamboli
c n l l l r the w:tll 11t1d I L ~ t in lh"
m i d d l
12. Rnorgy r"''"ircrnonl
(
per unit mn
.s
of
material
r u s h
d
o u n d
is
hi
g
be
st for
• · Jaw
o:r
usb
er
h. I{Qd 111
ill
c. Roll mill
tl. Flu[d anc:rgy mill
B .
l'hn:c •o
lid objcell. of ilic s:uuu motoriH1
;md of
aquol
ma
ss
- a spheru, •
t:y
llnder
(h:ng
tlt
=
diamot·er)
and a cube - 31\1 at
500"l inili•lty, Theso ttrc dropped in •
quenching bath co
nt:Unln
g n l•rgc vol
um
e
of
co
oHn
g.
oil
each
atlninins
tho
both
temp
erature
e\-e
ntuolty. 11te time ""' "1r•ed
for 90°o chang" or
lctuper.llUI"d
ls "
maJJ
""l
for
11.
cube
b.
cylinde•
u_ spb.:1
. ,
d. equal rora
lith
e three
14.
A
tlilute
aqu eo
u$
o t u t i o n
is
to
be
cou< enlt3tetl in an
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
22.
23
2-1
d. A - A
M
B >
B
Mu
tch the measu red process varia
bl
es lvi
lh
tlte
f m e u s u n J J g devices given
belmv
Losl i .(Mousoued
process nrinl. lcs)
A,
Tem peru ur-.,
l
Pressure
C }low
D.
l . o q u i ~ level
E
Composition
U(Measuringdevices)
L
Bourdo
n tlobe cl
ement
2.
c e .
plulos
3
lnfrore;J O f l 1 1 7
~ : r
l)ispla
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
29
30
The
c a r : l l
l i ~ OOJl\
'crter for con\·ersion
of
so
l to
so
) by contncl process should h0\ 0
feed
with
S01
content
between
II. 5%
b.
c. 2
LS%
tL ltJ -
25
The
8/20/2019 GATE Chemical Engineering 2003
5/12
w w
w . e x a
m r a c e
. c o m
[ L u )
c.
.,.- )
(1
e- .,-•
J . - e
38. 6 g of cJiruon is bwtll willt ou :uuouuLof
oio
·
co
nloining
1S
ol ~ • 1.01
325 blr
IOO"C
Outo
_41bar,
.51 0"C
l.l.nlb•I
PY
kJ
Entr
py. 7
0785
1I.J kg'
1
K'
1
41 ba r,
: 5
1
8•C
Hnt WP)
· oJ salur•lcd st
t"'-"'
2799.911.J kg'
1
El11rofo\
' •lf
8/20/2019 GATE Chemical Engineering 2003
6/12
w w
w . e x a
m r a c e
. c o m
11nthnl
py n(
·••turatcd
\ '3p
8/20/2019 GATE Chemical Engineering 2003
7/12
w w
w . e x a
m r a c e
. c o m
l . Convective b e o ~
t r ~ J I I i f e r
I
c o n d u c ~ .
l v e
heat
tr.msfer
3.
vmvlt
:lli
Omil force I
vi:ICCJU force
4
lneni•l
< J ~ e
I
oree
5 lnottiaf f o t - e ~ j l r o i t u l i o n ~ l f Q ~
Codes
A
B
c
D
n. l 2 5 3
b.
s 4 3 2
c.
s 2
d.
3 4 5
Q . 5 54
are
based
on
the data
supplied In the paragraoh below
A bed of
•pherlcal p o t t i c l e ~ g
rnv
ity
2.5)
of
uniform size
I
500
j tm
is
0.5
m in
diameter and 0.5
m high.
lu th
e pocled bed$Utlt:, lito polO$ it)
mo}
he '''ken 0.4. Bf8
un
5 .-quat on for tiH: ~ b q v e
p:trti.::
le-11Utd
systl:tn tin S l uni iJ) is [ iv
en
helow
L- ll: ' •l f) l: . , -
10
.94 lO'r
,..·
(SIUnitsl
5.1. I( water L' IQ
he<
usod :tll the f1uhlhin
medi
um. Ute
minimum Ouidiz:uioh
wlocity, V
is
0 . 12 nlnll
.9
b. 1.6 tnlltl
.:;.
24mnu
d.
28
mmts
54. In :lctuol
t'Jil
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
9
A
fll•id
is n
owing
ins
id
e
th
e inner 11
1he
of
A
double
pipe
heot
eo<
ph
aiic
ond
litjuid
ph:ose ()
4 an
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
•
T
Lluc jouuug (fll. Tl) and {H2. T2 ) IS tl•e
C
ll
.lStlltlt eothulp} line. Chose
Ihe
corr
eel
'ue from lmong the uhornat ives A. B. C
t ~ ~ ~ d O
u.
T1
Dew Poi01
Temp,;T2 Dry
Bu
lb
Temp.; T3 Wut Bull Tt:mp.
b.
T1 De
Point
Temp.:
T2
Wet Bulb
Tem
p.
:
T3 ~
13ulbT
cmr
.
T l
Wei
l l t ~ h
Te
mp
.:
T2
Dr)
13
ulb
Te
mp
.: T Dew P()int Temp.
d.
Ti -
D.y Bulb Temp
.:
T2 -
Bulb
Te
mp.; T3 Dew
l'
n
in
·tTemp.
68. Com[ ()
und
A is cxtrnctcd from a
of A • ll inlo o pure so lvent S. A co
curreul (tnh is used lin the liq,,id-liqn id
c ; q r a o rL: inl
et
mt c o lhc solut ion
oonl;umng
A
IS 200 moles o( Uihr m) uod
I
he solvenl
llow
ra
te
1s
400 moles 'f S
hr
m
1
• ·n,.,
eqmlibnun• data
IS n:prescnted by
Y = 3 X:
II he
re
Y iS Ul mo les of Alllto
le
s
uf
l3
and X
.tS
in mole
s
of
Al
mole
s
of
S.
Tbe maximum
percen
t11£e extraction
oc
bi
ov
cdin
fb i un
it
II,. 25'' '
b. 50'l•
u.
d.
IJO•o
>
9. A
CS
TR
is
h> b. de.
si
gu
eu il
1 uti
e
xo lh
cmlic liquid
pha
se lirsl order
reac
tion
of 1hc type A . R is pl
uC\)
. Tl1e
r
cac
iM is
to
be
p
roYidcd
with n jodccl
in
coola is 0(lwlog. l'n
ll
cm ing dulo
JS gL \
lU
c,..
,
= 5
krnol
lm X" = 0.5;
feed
lcmpemwn: - reru:tor
Lvorull rea
ct
or
volume, if
"
convcrsign oi' 0 9 i•
de
si
re
d'/
i
.
u, CSl
'R
fo
liO\ ed
by
t1 PFR
b.
PFR
fnJinwe tl by
u
CSTR
c.
CSTR fo
llowed
by
u
PFR lullowed
bv
CSTR .
J . PFR followed hy u CSTR i'FR
,
a.
7
- 72
. . .
II•H4 o• the 4•ta
ev JIIIIed
n
the Jll•n•ra•ll below
l')lc
following phn$e
are
curried t Ut
n u in
a CSTR
, j
. .
2R r
•
k;J
k •
20mo l (
sec
m
1
bur
.1-> .JS ~ k p ~ 4 0 m m h a r )
toUll m e - I bar. F
M -
1 mill/sec; feed is
pu
re A
71. Wh
ul tlte DldX
im um
pOs>ble \'ulue oi
l'
FR (mol sec j?
a.
lf3
b. 1 2
"· 3
d. 2
72
. Tbe YO lttme o
J.
.a CSTR
r ~ q u
r e d lor a
frnct•onol co nversion of1\ cq
uul lo
0.3 d
ue
W he
ot11L
teU
CIIOII IS
o
(),() I I
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
73,
74
75
b. 0.:: 1
c 0 175
d. 0.37.5
A step input tracer test IS used to e:.']liore
lhe llow pullem
of llmd
lhrough a \l:SSel
of
o tul
vo
lume eqtmlto I m
1
havUlg a feed
ro
tc
of
1m
1
/m1n
lclen
ll
f} l\Jr
C l l ~ h
UurW In Gr011p I
d
su
itnbl
e
flow
modd rrom list
given
unde
r
Grou p 2
Omup I
A Curvel
B.
Curvd
Oroup1
I
J'fR
and C >'TR m
sencs
' ( ~ I R wllb dead
p : l ~
J f'FR
m
st.'ri.:S wtth
n
CSTR and dead
spuc:e
1. CSTR
a A-4. B-3
b. A-I. B-1
c
A-l
B-3
d..
A-2
. B·I
f
ollcl\"'' 1 tsothennul L-inette
t i ~ U l
tW
ob tained
in
a
basket type of mixed Jlo•1
reac tor for n
porous
catalyst, Determ ine
the role or pore
d i J J u ~ o n
and 1 '1emal
mass U'llllSfer processes
- I l l ......,._ ~ , : >
I
•
.,
.._
-
2
I
l
a St
rong
po
re
diiTuston
con
lfol
and
m ~ s s
t m n s ~ e r no l controlling
b. Both pore
dJJfus
t
on an
d mass transler
not
con t
ro
ll ing
c Both pore ditfusfon and mass tr:tnsfer
controlling
d. Mnss
tmosfer controlling
The pressure diflerentinl o.cmss a verncnl
"Cntunmeter
tshown
tn F gurej •s
measured
" 1lh the
help
or
a mercury
maoomeler to
c:sttm
ale llow rate of' water
76
77
Ill o l
flowu'll lhruugh l
The
exp
ressiOn for
the
veloeny
ofwa
ter
nt
the throat Is
t
t
t
••
Wutc
" t:nlcrttlJ o stor:lgc
h l t 1
Ill u
tumpcn
•
turc T,.
und
llow ~ t c
Q,
1
and
l ~ a v l 1 1 g ut
n
ll(IW
rnle Q und
t t n n p e r n
T
There we negligibl" hent
J o s ~ s In
the
ta
nk Th
e-
nreo of"ross i n n
of
the lllnl.
is ~ The mod.:l thot d c s c n b c ~ the
d ~ m m
vanatmn
or
warer
lelllperm:we
m
the
tlllllwi
iJ tune l< giveoss
o To
+
T
'
a.
(
r,-F)= A
•
-
'
b
Ql;,- o r
lh
- '
tl
c.
c; (l
;
-
T = 1l h
d. V(T. - J
)=
ti(Th)
- II .. r dt
F
11d the
u
l t tm
iiU g
un and
frequency
fo
r u
pruponlottal
e>ontroiiL-r in
the c-il5C of u
process
hnving
the o l l t l 1 1 i n ~ unnsfcr
f ~ n c ; ion
C' ( ·)
I
• ,I
(-lA ) ( 2 •
I ) ~ H)
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
I ,. 45
"'=-:]j;:n. iJi4
b. =
fi
:K ~ IG
IJ G • 3
c. ~ l;K
d.
w :
Ji:
K
78.
Mnt
ch the
aype or
.:ontroller given in
Group l
that
m ~ l i t a b l ~
f ~ ~ r
each
application givenin Group
l
7".
Group l
A Distilli1Lioo colurnu b o L L O U I ~ lo be
controlled with boUoru.s flow
B. Distillati
bn
column pn:ssurc ltJ be
co
ntrolled by
man
lp
ullltin
g vapor flo"
from
the
ttJP plate
(
Flow
co
ntr
ol
of
11
liqu
id
ITqm
•
p
um
p
hy
posiliomng Ute ' 'alve in the line
0. Control
of
emperature C:) 1 R witlt
ctXllnnl flow in jackot
Group 2
I.
P control
l . P-1 control
3, P-l-D
conlrl' l
Codes
A n
l l
1
1
b. 2 2
e. 2
1
tl ,
2
3
c
2
3
I
2
0
3
3
3
fn
the ca•e ,)r
f ~ d
t'OrWar
8/20/2019 GATE Chemical Engineering 2003
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w w
w . e x a
m r a c e
. c o m
84.
85
.
86.
1L 660 iakl
u.
Discounted
volud
of U1c depfeciation
btnetitr,wer
tax
life in ntpecs
p,
l•khs
b, 24 l h t b ~ • ' 'it:Bin n•phthn
l : l t o
~ ~ i n ~ p h l l m
c.
virgin napltlb;J -
l l t l l l
nupltthn
toking na
ph h.1
d.
virgin
.nnpht:hn - cOkilljl nuphOm
e 3 t a t H t p