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CONFIDENTIAL

I,

s

s

UNIVERSITI

TUN

HUSSEIN

ONN

MALAYSIA

FINAL EXAMINATION

SEMESTERI

sEssroN

201212013

COURSE

NAME

COURSE

CODE

PROGRAMME

EXAMINATION

DATE

DURATION

INSTRUCTIONS

HYDROLOGY

BFC

32002

/

BFC 3092

3

BFF

DECEMBER

^OI2/JANUARY

2AT3

2

HOUR

ANSWER

ALL

QUESTIONS

$T

o

q,

CONFIDBNTIAL

UESTION

PAPER

CONSISTS

OF

EIGHT

8/18/2019 SEMESTER 1 20122013

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BFC 32002

I BFC

3092

Ql

(a)

Discuss how characteristics

of

soil are affecting

infiltration.

(3

marks)

(b)

Sketch

an

infiltration

rate curve. Give comments

with

respect

to

f,.

(4

marks)

(c)

The

isohyet

lines are

shown

in

Figure

Ql(c).

Calculate

the

average

precipitation

depth within

the catchment.

(5

marks)

(d)

The cumulative

rainfall in the 50

hectare of catchment

area

is

given

in

Table

Ql

(d).

The surface runoff of

the catchment

is

40000 m3.

(i)

Determine the

total

rainfall,

(ii)

Calculate

and

give

comments

on

index

(D,

(iii)

Prove that the

rainfall excess

is 80 ffiffi,

(iv)

Plot the

hyetograph

(

with

index

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Q3

Q4

BFC 32002 I BFC 3092

(a)

With

the

aid

of

figure, explain

TWO

(2)

techniques

of

baseflow

separation.

(5

marks)

(b) (i)

Define and

illustrate the element

of

flow/flood

routing.

(ii)

List

FOIIR

(4) purposes

of

flood routing.

(8

marks)

(c)

Table

Q3

gives

the

inflow and

outflow

measured

for a

particular

reach

of

a

river.

Analyse

whether the

Muskingum

parameter

x for

the reach

is

0.2

or

0.3.

(12

marks)

(a)

Outline

THREE

(3)

explanations

why

groundwater

in

Malaysia

is

not

fully

utilized.

(6 marks)

(b)

(i)

Define

and

sketch

the

unconfined

and

confined

aquifer.

(5

marks)

(ii)

Unconfined

aquifer

system

at

Kota

Bharu

has

the

hydraulic

conductivity

and

transmissivity

values

about

240

mlday

and

1200

m2/day

respectively.

Calculate

the

thickness

of

aquifer.

(4

marks)

(c)

One

production

well

was

constructed

and

has

penentrated

unconfined

aquifer at

depth 8.8m.

The hydraulic conductivity value

obtained

is

135

mlday.

Two

monitoring

wells

were

constructed

at

distance

300

m

and

g00

m

from

the

production

well.

Groundwater

levels

at

monitoring

wells

were

measured

and

obtained

0.9m

and

1.4m

respectively.

Compute

the

discharge

rate of

production

well

in unit

m'/s

'

(10

marks)

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(b)

(i)

BFC 32002

/BFC3092

(a)

Dengan bantuan rajah,

terangkan

DUA

(2)

teknik untuk

pengasingan

aliran

dasar.

(5

markah)

Takrifkan dan

gambarkan

elemen-elemen

untuk

penghalaan

aliran/banjir.

(ii)

Senaraikan

EMPAT

(4) kepentinganhalaan

banjir.

(8

markah)

(c)

Jadual

53

(c)

memberikan aliran

keluar dan aliran

masuk

yang

diukur

untuk

jangkauan

tertentu sebuah

sungai.

Analisa

jika

parameter

Muskingum,

r

ini menepati

0.2 atau

0.3.

(12

markah)

(a)

Berikan

TIGA

(3) penjelasan mengapa

air

bumi

di Malaysia

tidak

digunakan

sepenuhnya.

(6

markah)

Takrif dan

lakarkan

akuifer

terkurung

dan

akuifer

tak terkurung.

(5

markah)

Sistem

akuifer

terkurung

di

Kota

Bharu

mempunyai

kekonduksian

hidraulik

dan

nilai

keterusan

adalah

masing-masing

240

mlhati

dan

1200 m2ft:ra'i.

Kirakan

ketebalan

bagi

akuifer

ini.

(4

markah)

(c)

Satu

perigi

pengeluaran

telah dibina dan

mempunyai

akuifer

tak

terkurung

tertanam

pada

kedalam

8.8

m. Nilai

kekonduksian

hidraulik

adalah

135 m/hari.

Dua

perigi

pemantauan

telah

dibina

pada

jarak

300

m

dan

800

m daripada

perigi

pengeluaran.

Paras

air bawah

tanah

di telaga

pemantauan

diukur

dan

didapati

masing-masing

adalah

pada 0.9

m

dan

i.+

-.

Kirakan

kadaralir

dalam

perigi

pengeluaran

ini

dalam

unit

m'/s .

(

l0

markah)

(b)

(D

(ii)

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BFC

32002

I

BFC

3092

APPENDIX

LAMPIRAN

FINAL

EXAMIN ATION

P E

P

ERIKSAAN

AKHIR

SEMESTER/SESSION

: SEMI

I

201212013

PROGRAMME

:

3 BFF

COURSE

NAME :

HYDROLOGY COURSE

CODE : BFC 32002 I BFC

3092

FIGURESIRAJAH-RAJAH

-5

km

FIGURE

Ql(c)

RAJAH

Ql(c)

I

I

4m

-?

I

FIGIJRE

Q2(b) :

Cross section

of

stream

RAJAH

Q2(b)

:

Kerstsn

rentas

bagi

sungai

5

krn

p

=

60 rnrn.

1-

\

-\

P=

P=50mm

\

{0 mm

I

=30mrn

\,

k

,

I

\

\

\\

\

\J

\

\

1.3 m

8/18/2019 SEMESTER 1 20122013

7/8

L

E

F

-

I

E

*a

.l

ah

A

E

q)

*.

J

E

5

4.5

4

5

3

5

2

5

1

0.5

0

10

15

20

25 30

35

40 45 50

55

60

65

Duration

(minutes)

FIGURB

Q2(bXiD: Intensity-Duration-Frequency

(IDF)

curve

RAJAH

Q2

(b)

(ii)

: Le

ngkung

Ke amatan-Temp

o

h-

Fre

k ue

nsi

(ID

F)

TABLESIJADUAL-TADUAL

TABLE

Q2

(c):

Stream-gauging

data

t

\

*2$years

-+l})@rs

\

\ \

)--

ts'

\

-.-7

Table

Ql

(d)

Jadual

S

Time

(hour)

Masa

(iam)

I

2

.t

J

4

5

Cumulative

rainfall

Kumulatif

huian

(mm)

l4

40 80

100

110

JADaAL

52

k):

Data

sun

Distance

from

the

left

of water

edge

Jorak

dari

kiri sisi

air

(m)

Depth

Kedalaman

(m)

Velocity

Halaju

(m/s)

0.2d 0.8d

0.0

0.00

0.0

0.0

1.5

2.20

0.8

0.9

3.0

2.50

r.2

1.5

4.5

2.40

1.1

0.8

6.0

2.r8

0.9

0.7

7.5

2.tl

0.5

0.6

9.0

0.00

0.0

0.0

8/18/2019 SEMESTER 1 20122013

8/8

BFC

32002

I

BFC

3092

Time

(hours)

Masa

(iam)

Inflows

Aliran

Masuk

(m3/s)

0utflows

Aliran

Keluar

(m3/s)

2

110

110

4

380

120

6

680

240

8

530

490

l0

420

500

t2

330

428

l4

240q

357

l6

150

300

18 105

250

20

10

170

TABLE

Q3:

The

inflow

and

outflow

of a

river

JADUAL

53:

Aliran

mosuk

dan aliran

keluar bagi

sebuah sungai

E

O

UATI

ON

S/PERS.4/I44,4N

IndexO:P-R

t

Q:

AV

V:

(R'o;

1st/21ln

R:

a/p

t:LN

sz=s,+^,[+-+i

xt+(t-xP

2

2l

Q

=2rbK

h -

hl,

n(,,/\

\/\)