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SULIT
3762/2
Pengajian
Kejuruteraan
Elektrik dan
Elektronik
Kertas 1
2007
BAHAGIAN PENGURUSAN
TEKNIK DAN VOKASIONAL
JABATAN PENDIDIKAN TEKNIKAL
SKEMA PEPERIKSAAN PERCUBAAN SPM 2012
PENGAJIAN KEJURUTERAAN
ELEKTRIK DAN ELEKTRONIK
Kertas 1
© Hak Cipta Jabatan Pendidikan Teknikal
Skema ini mengandungi 6 halaman bercetak
[Lihat sebelah]
SULIT
BIL
1.
2.
3.
4.
5.
6.
JAWAPAN
AGIHAN
MARKAH
i - Wear Insulated shoes.
ii– Use the right electric equipment for the right
work.
iii – Beware and alert with power supply.
iv– Use a good condition electric tools and quipments
with safety features.
A
Red
B
Ultraviolet
C
Orange
D
Silver
a
TRUE
b
FALSE
c
TRUE
d
FALSE
A - Kirchhoff’S Voltage Law states that the algebraic
sum of the voltage supply, Vs and the voltage drop, Vr
across the load around a closed path is equal to zero.
B - Kirchhoff’S Current Law states that the algebraic
sum of the current entering ad leaving a node is equal
to zero.
i - Limit the consumer current use.
- Breaks the circuit when excess current occurred.
ii - Connects the neutral line to the consumer point.
iii - Connect and disconnect the circuit.
- Break the circuit when excess current occurred.
Iv - Distributes the current to the various end circuits.
- Breaks the circuit when there is excess current.
(i) Vp = 3 Bhg x 0.5 mV = 3 x 0.5mV = 1.5mV
1
1
JUMLAH
MARKAH
1
1
1
1
1
1
1
1
1
1
4
4
4
3
3
6
1
1
1
1
4
2
(ii) Vp p = 2 x Vp = 2 x 1.5mV = 3mV
2
7.
4
MT2
LDR
Triak
2
λ
E
B2
Get
MT1
B1
UJT
Lakaran 1
Label
1
2
2
6
BIL
8.
9.
10.
JAWAPAN
AGIHAN
MARKAH
(i) - A coil with greater number of turn will have
stronger magnetic field compared to a conductor with
less numbers of turns.
(ii) - Diameter or size of the conductor.
(iii)- Shape of the conductor.
(iv)- The magnetic flux surrounding a core coil is more
packed compared to magnetic flux of air core coil. Iron
core coil is a ferromagnetic material wit higher
permeability and is capable to pack the magnetic flux.
(i) - Common winding ( Belitan sepusat)
(ii)- Coupling winding ( Belitan Apit)
a) AND Gate
1
JUMLAH
MARKAH
1
1
1
4
1
1
1
2
1
2
(b)
Z = √ R 2 + (XC – XL) 2
11.
= √ 100 2 + (30 – 25 ) 2
1
= √ 10000 + 25
1
= 100.125 ohm
1
IT = V / Z
= 100 / 100.125
12.
13.
1
½
½
= 0.99 Amp
A Block :
Sampling
B Block :
Quantization
C Block :
Encoding
(i)
AAnod
(ii)
K - Katod
(iii)
G Gate
1
1
1
1
1
1
1
(b)
SCR
1
(c )
(i)
(ii)
(i)
(ii)
(iii)
(a)
Static Switch
Surge Voltage Protection Circuit.
1
1
6
3
6
BIL
JAWAPAN
14.
(a) An Intrinsic semiconductor is a pure semiconductor
that created when the bond between the same types of
atom.
(b) An Extrinsic semiconductor is created when an
impure atom is diffused or implanted into an intrinsic
semiconductor.
15.
16.
(a)
(b)
(c)
Exclusive OR gate.
NAND gate
NOR gate
AGIHAN
MARKAH
JUMLAH
MARKAH
2
2
4
1
1
1
3
(i)
1
(ii)
1
(iii)
1
(iv)
17.
a)
b)
END
A
D
1
4
1
1
2
18.
a)
b)
c)
d)
Betul
Betul
Betul
Betul
19.
(i)
(ii)
(iii)
20.
21.
World Wide Web
Random Accecs memory
World Area Network
2
2
4
1
1
1
3
a)
X
1
b)
X
1
2
1.
2.
Type of CPU
RAM and ROM
1
1
2
BIL
JAWAPAN
AGIHAN
MARKAH
JUMLAH
MARKAH
22.
M
1
M
1
2
23.
S
S
●
X
U
N
1
1
2
24.
25.
26.
27.
2
2
a) Manipulator Configuration
b) Manipulator base frame
c) Manipulator wrist
1
1
1
3
a) Hidraulik / Hydraulic
b) Electrical power
c) Pneumatic power
1
1
1
3
a) Betul
1
b) Betul
1
2
BIL
28.
JAWAPAN
AGIHAN
MARKAH
JUMLAH
MARKAH
a) Mechanical gripper
bVacuum gripper
1
1
2
a. Optic sensor
b. Audio censor
1
1
29.
2
30.
I
N
P
U
T
O
U
T
P
U
T
1
1
2