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w w
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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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K(s · l) will hove a
8
(28
- l}(: s i 1)
dofina
nnmbor variation of K
fmm
0
In
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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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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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