10%. It ib protected by Merz- Price circulating

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FINAL EXAMINATIO\
OF
PROTECTIO}..
S }'S
TEMS
201 2-2013
IVEITSITY OF TECHNOLOGY
ELECTROM ECHINCAI- Ei\iGINEI]RING DEPA RTM F-I\l'
DR, I{I SSDIN I, IIISHN (]
PO\\' ER F]NCIN I]EIII\C I]RANC}.I
StlB.lECT: PIiOI EC'TION SYS'IEM
LJ}I
CIASS:
TllV
F-
3 rd YEA R
A Lt.Qw ED: I h
S
Q1- What is the difference between a fuse and circuit breaker (list it in table shape).
(r0)
Q2- Explain tire working princ
ip le
d
of distance rela.vs rvith figure. LLst the types ol it.
(r
0) d
Q3- The three phase (11 kV, 500 MVA) circuit breaker suddenly closes on to a fault.
Determine (a) the symmetrical breakhg cunent; (b) the asymmetrical breaking current
assuming
50%o
dc component; (c) the peak making current; (d) the short-time current rating.
Q4- A star-connected, 3-phase, 10 MVA, 6.6 KV alternator has a per phase reactance of
10%. It ib protected by Merz- Price circulating-curent princ iple which is set to operate for
fault currents not less than 175A. Calculate the value of earthing resistance ic be plcvided
in orcier to ensure that only 10% of the alternator winding remains unprotected.
e5- A -3-phase transfonner having line-voltage ratio of 0 4 l<Vll I kV is counected in stardelta and protective trans tbrmers on the,100 V sidc havc a ctlrrent ratb of 500i5. What must
be the r.at io of tl.re protective transformers on the I I kV side. r.', ith the
figure.
0) d
Q6- Describe the fault-bus protection of B.B protection, with the figure'
e7-
Explain the Tra.ns lay protection scheme, operation and advantages for feeders, with the
Q8- What is lightning? Discuss the princ
ip ie,
construction and action of lightning u*.rr.lto;
GOOD LUCK
o
is.d". lSi.JJ'{sJl
i-"lCl
a,,.,
-
i.r-".
iJi$ll i.'..lCl
University of Technology - Electromechanical Engineering Dept.
Final Exam-Sample No.(l) - 2012 12013
Tirne: 3 hours
Class: 3'o Electro mechanics/Systems&Power
Subject: Eng. & Numerical AnalYsis
Examiner: Dr. Mustapha S. Abdullateef
Date: I
Note: Answer
12073
[!f@
questions
only
a:
bd:
=)
llt+ marks
ll
set of equations by Gazss elimination
z fromthe following
ffi"d
method:
ex
+
stnY.+ Zlnz = 4
I
dt+r.o9a67cosecy lInZ-3 = -4
e -(,.+0.69315)
j
Correct to
b)
-
Fit
least
r=i
cosY
- ln (z -
1.2214) =
-i
digits'
Giventh.follo@
::il-,
3tany
Fa,l
F'F]
o
2
squares:
I
)
4
10
3
15
Pe bY the method
of
I = a + bxz
at-l
kH'llll-*e4lll
whether
singular points of the given equation and determine
each one is regular or irregular '
- ffii
t
r\2
," * (cosx)Y'* (sinr)Y (iD ,IFY" + JG4Y' * e-xY - 0
(D
(t -
1)-
o
(b)Evaluatetheverticaldistancetraveledbyarocketiftheverticalvelocity
is given bY:
uZllt'-St(m/sec)
u = 1100 -5t (m/secl
v= 50t-2(t-ZO){ Qn/sec)
Using Simpson's rule
0<t<10
(sec')
10 < f < 20 (sec')
20 <t<30 (sec')
(1/3) for 5 sec subintervals'
/n\
LJ '\Z
Page
I of2
tr'."*al
Ithepage
I
m'lffill
Apply nunge Kutta method, 4th order, to:
a)
dya
*" I
Solve;i:
y
tor
x -- O.2,0.+,0.6
initiallv
l(0) = 2.
b) Compare the results with the exact solution by meaning of percentage
relative
etor
(PRE).
@'lFffil
a) Find tlre real root of equation x logrc
-
7.2 by Bisection Method up to eighth
approximated processes.
b) Prove by definition of Beta functionthe following property:
F(m,n)=l;#ax--[f
m,
lffil
ffiax
Find out the solution of wave equation when the string start from rest and
the initial displacement is:
(
Ix
I\
0<r<;.l
I
(,
i=. = r)
f(x)_l
-'
,
For the string both ends are frxed. Note that c
=
|
M,l|l@l
a) Evaluate the following:
i. [*
ii.
3-a,'dx.
[]@rn'),
ax.
b) Find the indicial equation and.recurrenceformula of the following oDE:
3x2y" -xy'+(1,-x)y=0
Page2
of2
class:
Thrid
University of Technologl - E le ctron.rcchan ical lJnginccrimg Dcpl
Final Exam- 2012-2013
Time:
Sub.ject: Advanced Compurers
Date: I 3-06201 3
8086 8si."q\q$
E:ranliner': ,.\nmar K. Abrahim S\ AkecL
M icroprocessor
o u.'
A.\L\o
note :Attempt only three Questions in i\IICROPROCESSOR
Ql Write a program to subtract :rn arra]' of 4316 consecutive one b)'te
of data numbered starting at offset address llzlH from another
arral of one byte data numbered starting at offset address 4423H
and store the result in the first arra-v. Assume that both blocks are in
the same data segment value 6677H.
Q2 Design a memory system with 2568 RAM and 1288 ROM size if
you have l28B RAM and 648 ROM Chip size and address lines for
CPU is 20 lines.
Q3 What we mean try segment register? And then Explain segments registers kinds.
Q4
of the instructions below if
DS=7DD3H, SS=865DH, IP For first Instruction
Show the effect before and after execution
vou knos, that CS=4882H,
=567CH,
BX=D871H,
SI=CAAFH,
AX=4817H,
CX:3DE4H,
DI=8917,DX=643E,BP=5638, Data location for first instruction: 6241H'
Data location
for thrid Instruction=
D552H, Data location
Instruction: 4119H
MOV AX, [BPl OPCODE=D624H
xoR [sr] , cx 0PCODE:6220H
XCHGCX,AX OPCODE=6AH
ADD [BX],DX OPCODE:3886H
With Good Luck
for
Irourth
University of Technology-Electromechanical Engineering Dept.
Final Exam- 2012-2013
(simulation)
Q!
$!g
Ansrver three question from simulation
Write function program m.file and simulation calling m.file to determine the reactions and forces
in each member ofthe loaded truss.
(
l0 marks)
P= 3000 N
QO l-he current in an LR circuit is given by
L1+ ni :
Esin(,ot)
n'here Esin(ot) is the voltage at time t, R is the resistance. and L is the inductance. At t=0.
i=0. write a
program using the fourrh-order Runge-Kufta method ro find i at r=0.I Take E=15,
L=0.05. ll= 100, and
,
LD=0.5.
(10 marks)
QZ: The velocity v (m/s) of air flowing past a flat surface is measured at severar distances y (m) awa).
from the surface. Write program to determine the shear stress r (fl,/mr)
at the surlace
().
=0).
du
-L - tt
'ay
Assume a value of dynamic viscosity
!r= t.grl0'5 N.s/m2,
v,m
0.002
0.006
0.012
U, NVS
0.28'7
0.8 89
t.915
(
9q
I0 marks)
suppose that the cu|Tent through a resistor is described b1,
the function
i(t) = (60
- 0, + (60 -
t)sin (1/t)
and the resistance is a iunclion
ofthe cunenr:
R= 10i +2i?/3
ruite
a program ro
rure.
find the varue ofaverage vortage over r = 0 ro 60 using the
Composite Simpson,s | ,3
(10 marks)
Good luck
University of Technology-Electromechanical Engineering Dept'
Final. Exam - 2012-2013
Time:3hr
Class: 3'd Year - Electromechanical Eng.
Subject:
Dare'.
Steam and gas turbines
I
12013
Note: AttemDt 4 Questions onlY
Examiner; Ass.Prof. Dr.Shaker H'Aljanbi
in details the effect of initial pressure and
Q-1) A;- With the aid of T-s diagram, explain
[6Marks]
,i.j.ru,rr"
""ill_-i"p., on a simple power plant.
power plant
steam
of
turbine
the
C
enters
4000
and
bar
50
at
r,"^ted steam
up a complete energy balance-for
und etpands to a condenser pressure of 0'14 bar' Draw
efficiency and specific
,ft. fa"'"ipi"tt,, including the feed pump term, and. find the^cycle
Show how the cycle would
t,'*. *ir"tption. Sketch the cycle on the T-S diagram' not
reversible' [9Marks]
in the turbine and feed pump were
";p*r-#th.
ft.esses
of
steam process planl'.the boiler generate 2l '000kg'&r
part of the steam goes to a process heater
u p..rrrr" oh I 7 bu, and 230 C0 A
0.97 dry atl T bar being
132, 56 kw. The steam leaving the process.heater
Q.2) In a combined power and
,i"ui *
;;;h;#;.
throttledto3.5bars..t-heremainingsteamflowthrorrghahighpressureturbinewhich.
with the process steam before entering the
exhaust at 3.5 bars. The exhaust stlam mixes
pressure is 0'3 bar and
i"l" p.rrrr." tr.tine which develops 1337'5kW At.exhaust the
0.91) dry. Draw a line diagram ofthe plant' determine:turbine'
;) iil;"". quality at the exhaust from the high pressure
il,Th. oo*., ieveloped by the high pressure turbine'.
turbme'
cj The-isentropic efficiency of the high pressure
95 dry and expands isentropically to
o
and
is'supplied to'dnozzle at-l ibar
6-ata;;";
the value ofn from
ttte law ofexpansion to be Pvn=constant' determine
Using this value' calculate the pressure and
the initial and final condition ofthe steam'
per unit area at throat'
at the throat of the nozzle' and the mass flow
;.#;;il;'.*m
it"i.etr".itg
exitandtwopointsbetweenthem.Plotcurvesshowingthevariationu'iththepressure
alongthenozzleofcross-sectionulutea,massflowperunitarea'velocityandspecific
volume.
of 430m/s' The
A single row of impulse turbine 1ras a mealUlfe speed
due to friction^and the
*-f"iitv nor?t" irttoO./s' There is ls%loss of velocity
the turbine for 700kg/hr is
"i
absolute discharge is axial' The power developed .from
steam
O"- il
angles and velocities and the blade efficiency'
B) Discuss the reason of the followings
frrst to last stage blade in gas turbine is smaller
heights
in first stage ofgas turbine is greater
,riun,-fru, oiu"u,n turbine. ii). the ieight ofblades
than that in steam turbine of comparable capactty'
of compression and two stages of expansion'
f iant consist oit*o stages
is 2'The temperature. entenng
Ti. pr-"rru.. ratio acros^s each turbine and each compressor turbine
is 900Cu.An ideal heat
.u"i'"o.pr..ro, is l5Co and the temperature entering each
turbine work
.-.tr*g.i it incorporated into the cycle' Determine the compressor work'
q1u' =857o'
Take the inlet pressure is 100kPa' ncomp':80%o'
SikW.D"t"t.in;ull
t)""fi;;;f.r;;;" u.t*.*,rtt
Q;;;
if
*il;
efficiency
"tJ,rt..."r
v:l.4and Cp:1 .006kJ/kg.K.
(l5Marks)
Class:
3tu
University Of Technology -Electromechanical Engineering Dept.
Final Exam 2012-2013
Timet 3-hours
pou'er
Subject: Control
Examiner:
Date:
systen theories
Dr. Asecl J. M.
-4
Alhsssani \ E
Note: lruu,er
i
5-Q uestion
/2013
Onll
Signature:
ID. No. :
alMrite the T.F. in respecl of the mechanical s,vstem given in Fig.. Then
using force-voltage analogy. obtain the equivalenr e
x
K
M
C(damping)
f
Mech.
Elect.-Direct
E
L
R
1lc
Elect.- lnverse
I
c
l/R
tlL
a
Dx
DQ=I
E
b: the output ofa feedback control system must be a function.of "
i)reference and output ii)reference and input iii)input feedback signal
iv)output and feedback signal
a:Tlre
t*tsl"t
function fol the colttrol
b :Determine the transfer function for the
block diagram shown in Fig bY first
drawing its signal flow graph and then
using the Mason's gain formula'
@cksystem,offig',the
o}the .esultittg second order system for
'
2%tolerance band will be "' """"'
84
iv)2
ii)4.5 iii)2.zs
,"ttiine
ti-.
D3.33
Obtain the unit-impulse response ofa unity feedback
is :
control system whose open loop transfer function
b:
c+
cis)=T
J"i"..in.
1
s : s4+ 10s3+3 5s2+50s+24=0 For this system
rh. nu.ber
oi
-2'
roots to the right ofvertical axis located at s=
b : comnrent on tlre stabili{ of a unity
a : polar plot
of
function
-feedback control systeln having tlre open loop transfer
. : r.u;rrjrt.
axis
6:';uj..
i)closses the negative real
ir')none of the above
ii) crosses the negative imaginary axis
iii)crosses the positive imaginary axrs
l.raving the open loop transfer function
complete Nyqulst plot for a unity feedback systern
G(s)=6/ s(1+0.5s)(s+6).
b : Drar^'the
positional
f* tni. ,;-#,'
"onriunt
r;1t;='11212'
r(t)=, and parabolic input
;;.;;";fi;;
b:
Determine the z-transform
tl.re
s+6)
'velociff 'and
'deternine
with
step input r(t)=u(t)'ramp Input
enors
state
steady
.atro ,a.iermine
of f(t)=2 ea'?
University of Technology-Electromechanical Engineering Dept
Final Examination 2012-2013
3'd-
year/ power
Time: 180 min.
Date:23 1612013
Answer Four Ouestions
Subj.Combustion & Air Pollution
Examinar:Assis. Prof. Dr.Hassan
e1r' The dry products from a combustion test of fuel show a partial voiumetric anaiysis
of lTYo carbon dioxide , 1.9 oh carbott monoxide and l'21 % hydrogen,with
the ash containing 0.01 un bumt carbon per gram of fuel supplied.If the sainple
of solid fuel of coal have the following volumetric percentage composition
carbon 90 ,hydrogen 6 , oxygen 3 and ash l'0 ' determine :
l.The stoichiometric air fuel mass ratio
2.The actual air fuel mass ratio
3.The equivalence ratio
4.which tYPes of mixture of fuel
[15mark]
5.The wet percentage products of composition
parameters:
the following
Q2l (a)Define and explain the meaning of
2'equivalance ratio.
f.ignitiondelayperiod
3.indicated mean effective pressure 4'excess air coefficient
5.Detonation and abnormal combustion
(b) Explain on which factors depend the formation of
N0'
that on a dia-gram
[15mark]
carbon
of
in concentrations ofproducts
Q3.(a) show on the diagram the variations
function of A'lF mass
Dioxide ,carbon monoxide and un burnt hydrocarbons as a
'show
ratio.
of combustion in
(b)Explain and discuss with the aid of graph the process & stage
[l5mark]
a diesel
engine.
Q4(a)WhenhydrocarbonemissionsHCgetintoatrnospheretheyreacttoformdifferent
components, explain these component'
the combustion process
(b)Discuss and explain the undesiiable emissions generated-in
emissions'
of combustion engine, discuss also the major causes of these
[15mark]
Q5/1.A6-cylinderdieselenginehas5.6litre,operateon4-strokecycleisusedinatruc]
-u"ti.t" requiring 17g kw as an effective power,themechanical effrciency_ofth: :1gll.
equipment is
i, tg%.Td spec-ific effective fuel consumption is 230 glkw.hr.A new
power by 7olo.Assuming the
ir,rtuff.a in the engine which increase engine friction
indicated thermal effrciency remain the same ,calculate:
l.the new mechanical efficiencY
2.the new brake specific fuel consumption
3.the new increase in fuel consumption per hour
4.if brake mean effective pr"ss*i :0.880 MPa , calculate engine torque
of diesel spray,
2.Explain the emission formation with schematic representation
engine.
combustion and pollutant formation f9r a direct injection diesel
1t
uaW
: -\ / r, r
--
)
[l5mark]
'ltJzr^tFalt ii,"\id
s-'b -&-{rl}iAdt
it
UL
l.rnir,ersil] of Technologl - E lcctromechanical Enginecring Dcpt.
l:inul Exam SanrPle t1) - l0ll-:01i
Strd): third
Su
Time:
class
Date:
bj ect:
i hoLrrs
6
15
l{)1--:
Note: Ansrr er lbur questions onl)j
Eraminer:
Si!:nature:
The bus bar conductors of a substation are supported b} post it-tsulators
consisting each of 3- pin insulators fixed onc on the top oflhc other" The voltage across
lhe iou,eit insulator is (14.82Kri) and that across the next is (12.26Kr'). Assunre the
Ql
) A)
bars'
( 7'50)
betu'een the bus
B) A 3- piase. 50 Hz" 66Kv. overhead T.L. are piaced in a htrrizoutal 1-rlan as sho.'.'i.r
in li_e. the conductof diameter is (1.25cm). I1' the line is (l00Knr). .calculrte thc
( 10")
capa;itance per phase {drive the 1'ormula used
s\ stem as 3- phase. 3-r,r'rre. Find
tie voltage
}
2.5 m
Q2)A3-plrase33Kv.50I]z.I.L.40Kmlongdeliversaloado|20000Kr,r'atO-tiP.F.
per Km is (0.075f1).and the
iigging aithe receivirrg end. The fesistance of-line pcrphase
(b)sending end
L..iio,i.. per.phase p.. K* is (0.3o). Find (a) the sending end voltagc (17.5")
(e) the cfticiencl .
cun.ent icjsending eird power factor (d) rorque angle
Explain the construction of underground cables'
Q3)
- )aA)po*,..
The annual load f'actor
slation has a maximum dema=nd o1'(15000KW).
lil
(7'5"'1
(10")
r09zn and
of
plant capacitv lactor is 40%0. Deterrrine the reserve capacitl
is
plarlt'
Pou'er is supplied at A at (11Kv) and load of
Q4) A lhree phase distributor ABCA'
takeu at B and C
a1 P-F. (0.8). and a (60,4) at (0-9 P F') are
ti0il p., phase
6 *'i10o'
L..p"ii.'.fli 'l"he irnpedance ofibeder are AB = 4''t8i)' BC - 6-'i8Q "lg-C1Calculate the Voltage at
Il
and C and the current in tach
branch'
( 17'5")
d5) An or.erhead r.L. conductor]11'''niu'1.,''i]"
utti'"uti..rr:ngth.is 8000Kgicnir rhe
it'. fl;?]:iT:-'::fl:'ffi),Xi:[:li'il:
,t'l,.JJi'li"i.,'i"11
""a
ttl':!'
,l-,1.'1.,*.' u.. 600m apart having (l5rn) difl'erence "t
,-:'*t::: lL:.t:i"ii:: llT
auou'ed so rhat the i-acto' of safetr,'31,1'. (t)
.;;ffi;';ij.i.'"i
,;i'il;r;;;;#;;r;;l'r"timust
be
per
rneter'
Assumc that ice load is 11kg)
(17.5")
University of Technology-Elecfiomechanical Engineering Dept'
Final Exam-First Attempt - 2012-2013
Time: 3 hours
Class: 3 rd. years
Date:2'7 I 6 12013
Note: Answer five questions
Subject: Industrial Engineering
Examiner: Dr K. I. Mahmoud
ID No.
Name:
Q
I
Signature
: Consider the following engineering project:
critical Path?
display all the values in a table'
ES, EC, LS, LC and the slack time' and
the
2-Compute
within 5 weeks' what is the effect on the project
3- Suppose that activity B
completion time?
l-What
is the
;;;;;;;i;ted
(A' B' and C)' During
has three major power'generating companies
Missouri
of
state
The
Q2:
p'i*".. n
iuthoiizes these. companies to pool
ir*"".i
o"-"oo,-tn"-f"f
peak
of
the nonths
"thority power companies that-do not have
ii t".maller independent
their excess supply and to oirt"iu"t"
basis of cost
Excess supply is distributed on the'
demand'
the
i"tal"
to
enough
large
generators
millions of
table shon's ih. aelnund and supply in
per kilowatt hour transmrrt"a. ii"l"ur*-g
small
hour of transmitting electric power to three
per
kilowatt
costs
the
and
hours
kilowatt
companies in cities llt,X, and Y'
supplv'
noa uo initiallransmisl':,t-1tlti::,:::1"-1.-".::t-l""er
1-Use the VOGAL method to
svstem'
to find the optimum distribution
;:;il;il;fi;p;;;;""
'ethod
model X and $30 on each model Y'
makes a profit of $10 on
Company
Phone
Mobile
Q3:
-e1ch
and B (Testing)' but
p"otJttiog tntougn tne same m.achines A (Cleaning)
Both products
".qui".
-S
Xrequires4minutesion"JsioB,wfrereasYrequires6minuiesinAand4inB'Duringthe
n"t" 720 and t60 minutes of available capacity
lt'O
i
m"ct'ioet
we"k
forthcoming
t*n should be produced to realize the optimum profit?' Solve
respectively. How many pn"""
this problem graPhicallY'
"i
suppose that an Engineer has five jobs that can be performed on any of five machines.
The cost($ of completing each job-machine combination is below. Find the assisnmanr
Job
Q4:
-
J1
J2
J3
J4
J5
5
6
4
7
6
4
4
3
9
I
6
,
3
)
8
8
5
4
4
J
s
3
f,
5
4
Q5:- The Midwest Bolt would like to control the quality of the bolts produced by its automatic
screw machines' Each machine produces 100 bolts per hour
and is controlled by a separate control
chart' Every hour, a random sample of six bolts is selected
from the output of each machine and the
diameter of each sampre bort is measured, From each
six diameters, an average and range are
computed' suppose now one sample produced the following
six measurements:
0'536 , 0'507 , 0.530 , o'szs , 0,530 and 0.520.
we arso know that the grand average of a[ past
samples has been running (
O.S13l and the grand average range is (
E-= O.O2O).
(Given for n=6 A2=0.483 D3=0
D4=2,004). tstheprocess in control ornot?
i=
Q6-: Processing times and due dates for six jobs waiting
to be processed at a singre machine are
given in the fotowing tabre' Determin.
thc mean flow timeraverage
tardiness and number of tardy jobs
tn. onuiii* iy',iirg cn t"riticar ratio scheduring
rure:
"t
tilr'd;;;;;;:obs,
Due Date (days)
University of Technology-Electromechanical Engineering Dept.
Final Exam-First AttemDt - 2012-2013
Time : 3 hours
Class : 3'd year - power
Subj ect: Fluid Machinery
Date: /
/2013
Note: Attempt five questions only
Each question has an equal mark
Examiner : Dr. Hussein Maieed Salih
ID No.
Name:
Qr/
Signature
A. Prove that the change in static enthalpy for an urial compressor rotot is equal
/ )
?\
-w;
tollwl -
t2j
I
l.
B. What is the meaning of the specific speed of the pump and what is the
mathematical expression for it?
Q2/
of
moving blades in a wheel. The direction of the jet makes 20" with the direction of
move;ent of the blade. The blade angle at inlet is 35". If the jet should enter the
blade without striking, what should be the blade velocity. If the outlet angle of the
A water jet 20 mm in diameter and having a velocity of 90 m/s strikes
series
blade is 3Co, determine the force on iire blade. Assume that there is no friction
involved in the flow over the blade.
Q3/
A radial flow hydraulic turbine is required to be designed to produce 20 MW under
output
a head of 16 m at a speed of 90 rpm. A geometrically similar model with an
of 30 kW and a head of 4 m is to be tested under a dynamically similar conditions'
At what speed must the model be run? What is the required impeller diameter ratio
between the model and protot)?e and what is the volume flow rate through the
model if its efficiency can be assumed to be 90 per cent?
Q4t
A Pleton turbine running at 720 rmp uses 300 kg of water per second. If the head
jet by
available is 425 mdetermine the hydraulic efficiency. The bucket deflect the
165.. Also find the diameter of the runner and jet, if the nozzle efficiency is 94"/o.
0.1
Assume k":0.45. The losses in relative velocity of flow due to blade friction is
of the inlet relative velocitY.
ai-,;3tl JEli
cl C#
Qs/
The outer diameter of a Francis runner is 1.4 m. The flow velocity
at inlet is 9.5
m/s. The absolute velocity at the exit is 7 m/s. The speed of op.rution
is +:o rpm.
The_power developed is 12.25 MW with a flow rate of 12 m3)s.
rotal heao is t ts
F9t shockless entry determine the angle of the inlet guide vane. Aiso
T.
find the
absolute velocity at entrance, the runner blade angle at inlet and
the loss ofhead in
the unit. Assume zero whirl at exit. Also find the ipecific speed.
Q6/
.9/,-^
It is desired to have a discharge of water of r 0-llmin
using a reciprocating pump
r_umi1g at 42 rpm. The bore to stroke ratio is to be 1
: t.sltt *p".i"a that the
slip will be l2%0. Determine the bore and stroke for (a) single
a"ii"g'p"-p, and (b)
double.acting pump. If the total head is 30 m anditre
ov"eral e-irr-ci*"j, i, szz,
determine the power required in both cases.
t
Good
Luck
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