# Simulasi Unbk Soal Teori Kejuruan (Stk) Otomotif Smk Mak Tahun 2018/2019

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| By NurasiahZamil
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NurasiahZamil
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Quizzes Created: 11 | Total Attempts: 20,369
Questions: 45 | Attempts: 2,915

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• 1.

### Pada sistem penyejuk udara komponen yang berfungsi untuk merubah gas dalam tekanan dan suhu rendah menjadi gas dalam suhu dan tekanan yang tinggi adalah …

• A.

Evaporator

• B.

Kondensor

• C.

Kompresor

• D.

• E.

Blower

C. Kompresor
Explanation
The component that is responsible for changing low-pressure and low-temperature gas into high-pressure and high-temperature gas in an air conditioning system is the compressor. The compressor compresses the refrigerant gas, raising its pressure and temperature before it is sent to the condenser for further cooling.

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• 2.

### Expansion Valve pada sistem penyejuk udara berfungsi untuk …

• A.

Memampatkan refrigerant

• B.

Mengabutkan refrigrant kedalam evaporator, agar refrigerant cair dapat segera berubah menjadi gas

• C.

Mensirkulasikan udara kedalam ruang penumpang

• D.

Merubah cairan refrigerant dalam suhu dan tekanan tinggi menjadi suhu dan tekanan yang rendah

• E.

Merubah gas refrigerant tekanan dan suhu yang tinggi menjadi cairan refrigerant dalam suhu dan tekanan rendah

B. Mengabutkan refrigrant kedalam evaporator, agar refrigerant cair dapat segera berubah menjadi gas
Explanation
The expansion valve in an air conditioning system functions to atomize the refrigerant into the evaporator, allowing the liquid refrigerant to quickly change into gas.

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• 3.

### Urutan siklus pendinginan yang benar adalah …

• A.

Compresor – evaporator – Dryer – Condensor – Expansion valve

• B.

Compresor – condenser – Dryer – Evaporator – Expansion valve

• C.

Compresor – condenser – Dryer – Expansion valve – evaporator

• D.

Compresor – Dryer – condenser – expansion valve – evaporator

• E.

Compresor – expansion valve – dryer – evaporator – condenser

C. Compresor – condenser – Dryer – Expansion valve – evaporator
Explanation
The correct answer is "Compresor - condenser - Dryer - Expansion valve - evaporator". This is the correct sequence for the cooling cycle in a refrigeration system. The compressor compresses the refrigerant gas, which then flows to the condenser where it is cooled and condensed into a liquid. The liquid refrigerant then passes through the dryer to remove any moisture or impurities. Next, it goes through the expansion valve, which regulates the flow of refrigerant into the evaporator. In the evaporator, the refrigerant absorbs heat from the surrounding air or objects, cooling them down.

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• 4.

### Pada sistem kelistrikan penyejuk udara , komponen yang berfungsi untuk melindungi sistem apabila tekanan didalam sistem terlalu tinggi atau terlalu rendah adalah …

• A.

Thermostat

• B.

Saklar tekan ganda (dual pressure switch)

• C.

Sekring (fuse)

• D.

Relay

• E.

Kopling magnet

B. Saklar tekan ganda (dual pressure switch)
Explanation
The dual pressure switch is a component in the air conditioning electrical system that functions to protect the system when the pressure inside the system is too high or too low. It is designed to monitor the pressure levels and automatically shut off the system if the pressure exceeds the safe limits. This helps to prevent damage to the system and ensures its proper functioning. The other options listed are not specifically designed for pressure protection in the air conditioning system.

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• 5.

### Sistem AC berguna untuk mengontrol kelembaman udara dalam mobil, komponen AC yang berfungsi merubah gas menjadi cairan refrigerant adalah …

• A.

Expansion valve

• B.

Compressor

• C.

Evaporator

• D.

Condensor

• E.

Dryer

D. Condensor
Explanation
The condenser is the component in an AC system that is responsible for converting the refrigerant gas into a liquid. It does this by transferring heat from the refrigerant to the surrounding air, causing it to condense. This liquid refrigerant then flows to the expansion valve, where it is further cooled and evaporates, absorbing heat from the air inside the car. Therefore, the condenser plays a crucial role in the AC system by facilitating the conversion of gas to liquid refrigerant.

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• 6.

### Komponen pada system AC yang berfungsi untuk menampung refrigerant cair untuk sementara, yang untuk selanjutnya mengalirkan ke evaporator melalui expansion valve, sesuai dengan beban pendinginan yang dibutuhkan adalah …

• A.

Evaporator

• B.

Expansion valve

• C.

• D.

Compresor

• E.

Condensor

Explanation
The receiver/dryer is a component in an AC system that serves as a temporary storage for liquid refrigerant. It receives the refrigerant from the condenser and filters out any moisture or impurities. It also helps to regulate the flow of refrigerant to the evaporator through the expansion valve, based on the cooling load required. Therefore, the receiver/dryer plays a crucial role in maintaining the efficiency and performance of the AC system.

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• 7.

### Untuk menghindari berkurangnya efek pendinginan yang disebabkan pembekuan air yang ada yang ada pada fin pada evaporator yang telalu dingin <0°C pada system AC maka dipasang peralatan tambahan …

• A.

Anti Frosting Devices

• B.

Elemen pemanas

• C.

Pressure switch

• D.

Blower

• E.

Sirip-sirip

A. Anti Frosting Devices
Explanation
To prevent the decrease in cooling effect caused by the freezing of water on the fins of the evaporator that is too cold (

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• 8.

### Untuk mengontrol tekanan pada sisi tekanan tinggi apabila pada sisi tekanan tinggi terjadi tekanan berlebih atau terlalu rendah, maka secara otomatis akan menyetop switch sehingga magnetic clutch menjadi off pada system AC maka dipasang peralatan tambahan…

• A.

Anti Frosting Devices

• B.

Elemen pemanas

• C.

Pressure switch

• D.

Blower

• E.

Expansion valve

C. Pressure switch
Explanation
The pressure switch is installed in the high-pressure side of the AC system to control the pressure. It automatically stops the switch if there is excessive pressure or too low pressure in the high-pressure side. This action turns off the magnetic clutch, which is responsible for engaging and disengaging the AC compressor. By doing so, it helps prevent damage to the AC system and ensures proper operation.

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• 9.

### Dibawah ini merupakan jenis compressor system AC tipe rotary adalah …

• A.

Tipe crank

• B.

Tipe swash plate

• C.

Tipe Reciprocating

• D.

Tipe in line

• E.

Tipe Through Vane

E. Tipe Through Vane
Explanation
The correct answer is Tipe Through Vane. This type of compressor system for AC uses vanes that move in and out of slots in the rotor to compress the refrigerant. The vanes create chambers that trap and compress the refrigerant, which is then discharged at a high pressure. This design allows for efficient and smooth operation of the compressor, making it suitable for use in AC systems.

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• 10.

### Komponen pada system AC yang berfungsi memutus dan menghubungkan putaran kompresor dengan putaran mesin adalah …

• A.

Kompresor

• B.

Kondensor

• C.

Katup ekspansi

• D.

Manometer

• E.

Kopling magnet

E. Kopling magnet
Explanation
The component in an AC system that is responsible for disconnecting and connecting the rotation of the compressor with the rotation of the engine is the magnetic clutch. The magnetic clutch is used to engage and disengage the compressor so that it only runs when needed, reducing unnecessary wear and tear on the system.

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• 11.

### Untuk mencegah mesin mati saat system AC dinyalakan pada kendaraan maka dilengkapi dengan …

• A.

Thermostat

• B.

Idle up

• C.

Pompa akselerasi

• D.

Choke

• E.

Putaran stasioner

B. Idle up
Explanation
To prevent the engine from stalling when the AC system is turned on in a vehicle, it is equipped with an "Idle up" feature. This feature increases the idle speed of the engine when the AC is activated, compensating for the additional load placed on the engine by the AC compressor. By increasing the idle speed, the engine is able to maintain a stable RPM and prevent stalling.

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• 12.

### Alat yang berfungsi untuk mengosongkan dan mengisi refrigerant pada system AC dinamakan …

• A.

Pressure gauge

• B.

Manifold gauge

• C.

• D.

Sight glass

• E.

Kompresor

B. Manifold gauge
Explanation
A manifold gauge is a tool used to evacuate and recharge refrigerant in an AC system. It consists of multiple gauges that measure the pressure of the refrigerant in the system. The manifold gauge allows technicians to monitor and control the pressure levels during the evacuation and charging process, ensuring the correct amount of refrigerant is added or removed from the system. It is an essential tool for maintaining and servicing AC systems.

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• 13.

### Jenis kompresor dimana sisi piston yang berfungsi hanya satu sisi saja dan pada kepala silindernya terdapat dua katup yaitu katup hisap dan katup penyalur adalah…

• A.

Kompresor tipe Rotary

• B.

Kompresor tipe Crank

• C.

Kompresor tipe vane

• D.

Kompresor tipe swash plate

• E.

Kompresor tipe reciprocating

B. Kompresor tipe Crank
Explanation
The correct answer is "Kompresor tipe Crank" because in this type of compressor, only one side of the piston is used for compression and there are two valves, namely the suction valve and the discharge valve, located at the cylinder head. This design allows for efficient compression of the gas or air being compressed.

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• 14.

### Kompresor system penyejuk udara yang terdiri dari sejumlah piston dengan interval 72° untuk kompresor 10 silinder dan interval 120° untuk kompresor 6 silinder adalah …

• A.

Rotary

• B.

Crank

• C.

Vane

• D.

Swash plate

• E.

Reciprocating

D. Swash plate
Explanation
The correct answer is Swash plate. A swash plate compressor system consists of a number of pistons with a 72Â° interval for a 10-cylinder compressor and a 120Â° interval for a 6-cylinder compressor. The swash plate is a component that converts the rotary motion of the drive shaft into reciprocating motion of the pistons. This allows the compressor to compress air and cool it efficiently.

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• 15.

### Alat yang digunakan untuk memeriksa kebocoran gas refrigran dengan menggunakan nyala api yaitu …

• A.

Gas leak detector

• B.

Electronik leak detector

• C.

Manifold gauge

• D.

Kaca duga

• E.

Flame leak detector

B. Electronik leak detector
Explanation
The correct answer is "Electronik leak detector." This tool is used to detect gas leaks by using electronic sensors rather than a flame. It is a more advanced and accurate method of detecting leaks compared to using a flame as it can detect even small leaks and provide precise readings.

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• 16.

### Pengertian kelistrikan bodi di bawah ini yang paling tepat adalah ….

• A.

Suatu sistem kelistrikan yang arusnya mengalir pada bodi kendaraan

• B.

Semua sistem kelistrikan yang berhubungan dengan bodi kendaraan

• C.

Semua sistem kelistrikan pada bodi kendaraan, dan bertujuan untuk menjamin keamanan dan kenikmatan saat berkendara

• D.

Salah satu bagian kendaraan yang sangat berpengaruh terhadap komponen kelistrikan kendaraan

• E.

Sistem kelistrikan yang membuat pengendara nyaman saat berkendara

C. Semua sistem kelistrikan pada bodi kendaraan, dan bertujuan untuk menjamin keamanan dan kenikmatan saat berkendara
Explanation
The correct answer is "Semua sistem kelistrikan pada bodi kendaraan, dan bertujuan untuk menjamin keamanan dan kenikmatan saat berkendara." This answer states that the definition of body electrical is all electrical systems on the vehicle body, which aim to ensure safety and enjoyment while driving.

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• 17.

### Fungsi sistem lampu kepala adalah untuk ….

• A.

Menerangi jalan pada bagian depan kendaraan

• B.

Memberi isyarat adanya serta lebarnya dari sebuah kendaraan pada malam hari bagi kendaraan lain, baik yang ada di depan maupun di belakang

• C.

Memberikan isyarat bahwa kendaraan bermaksud mundur

• D.

Memberi tanda bahwa kendaraan akan membelok atau pindah jalur

• E.

Mencegah terjadinya benturan dengan kendaraan di belakang

A. Menerangi jalan pada bagian depan kendaraan
Explanation
The function of the headlight system is to illuminate the road in front of the vehicle, allowing the driver to see clearly in low light conditions or at night. This is essential for safe driving as it helps the driver to identify any obstacles, pedestrians, or other vehicles on the road ahead and take appropriate actions to avoid accidents.

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• 18.

### Sistem lampu kepala dibedakan menurut tipenya, yaitu ….

• A.

Lampu dekat dan lampu belakang

• B.

Lampu hazard dan lampu jauh

• C.

Lampu belok dan lampu mundur

• D.

Lampu Sealed-Beam dan lampu Semi Sealed-Beam

• E.

Lampu dekat dan lampu jauh

E. Lampu dekat dan lampu jauh
Explanation
The correct answer is "Lampu dekat dan lampu jauh" because it states that the headlight system is differentiated according to its types, which are the low beam (lampu dekat) and the high beam (lampu jauh). This explanation directly corresponds to the given options and provides a clear understanding of the different types of headlight systems.

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• 19.

### Pernyataan yang tepat mengenai lampu heartz halogen pada sistem lampu kepala adalah...

• A.

Memiliki pelindung berbentuk bulat terhadap filamentnya

• B.

Lampu lebih panas dibandingkan dengan bola lampu biasa saat digunakan

• C.

Umur lampu tahan lama meskipun oli/gemuk menempel pada permukaannya

• D.

Perawatannya yang lebih mudah dibandingkan dengan lampu biasa

• E.

OptionSemua pernyataan salah 5

B. Lampu lebih panas dibandingkan dengan bola lampu biasa saat digunakan
Explanation
The correct answer is "Lampu lebih panas dibandingkan dengan bola lampu biasa saat digunakan" because halogen lamps produce more heat compared to regular light bulbs when they are used. This is due to the halogen gas inside the lamp that allows it to operate at higher temperatures, resulting in a brighter and whiter light.

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• 20.

### Fungsi lampu kota berikut ini yang paling tepat adalah ….

• A.

Memberi isyarat adanya serta lebarnya dari sebuah kendaraan pada malam hari bagi kendaraan lain, baik yang ada di depan maupun di belakang

• B.

Mencegah terjadinya benturan dengan kendaraan di belakang

• C.

Memberikan isyarat bahwa kendaraan bermaksud mundur

• D.

Memberi tanda bahwa kendaraan akan membelok atau pindah jalur

• E.

Menerangi jalan pada bagian depan kendaraan

A. Memberi isyarat adanya serta lebarnya dari sebuah kendaraan pada malam hari bagi kendaraan lain, baik yang ada di depan maupun di belakang
Explanation
The function of the city lights is to indicate the presence and width of a vehicle at night for other vehicles, both in front and behind.

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• 21.

### Fungsi lampu sein berikut ini yang paling tepat adalah ….

• A.

Memberikan isyarat keberadaan kendaraan dari bagian depan,belakang, dan kedua sisi selama berhenti dan parkir dalam keadaan darurat

• B.

Mencegah terjadinya benturan dengan kendaraan di belakang

• C.

Memberi tanda bahwa kendaraan akan membelok atau pindah jalur

• D.

Memberikan isyarat bahwa kendaraan bermaksud mundur

• E.

Menerangi jalan pada bagian depan kendaraan

C. Memberi tanda bahwa kendaraan akan membelok atau pindah jalur
Explanation
The correct answer is "Memberi tanda bahwa kendaraan akan membelok atau pindah jalur". This is because turn signals are used to indicate to other drivers that a vehicle intends to change lanes or make a turn. By activating the turn signal, the driver communicates their intention to other road users, helping to prevent accidents and promote safe driving practices.

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• 22.

### Fungsi lampu parkir berikut ini yang paling tepat adalah ….

• A.

Memberi isyarat adanya serta lebarnya dari sebuah kendaraan pada malam hari bagi kendaraan lain, baik yang ada di depan maupun di belakang

• B.

Mencegah terjadinya benturan dengan kendaraan di belakang

• C.

Memberikan isyarat bahwa kendaraan bermaksud mundur

• D.

Memberi tanda bahwa kendaraan akan membelok atau pindah jalur

• E.

Menerangi jalan pada bagian depan kendaraan

C. Memberikan isyarat bahwa kendaraan bermaksud mundur
Explanation
The correct answer is "Memberikan isyarat bahwa kendaraan bermaksud mundur." This is because the function of the parking light is to indicate that the vehicle intends to reverse. It alerts other drivers and pedestrians that the vehicle is about to move in reverse, helping to prevent accidents and collisions.

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• 23.

### Saat lampu sen dihidupkan, maka lampu akan berkedip dengan interval....

• A.

30 – 120 kali/menit

• B.

40 – 120 kali/menit

• C.

50 – 120 kali/menit

• D.

60 – 120 kali/menit

• E.

70 – 120 kali/menit

D. 60 – 120 kali/menit
Explanation
The correct answer is 60-120 kali/menit. The question states that when the lamp is turned on, it will blink with an interval. The given options provide a range of intervals, and the correct answer falls within the given range.

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• 24.

### Alat yang menyebabkan berkedipnya lampu sein ketika saklar ditekan dan mempunyai interval waktu berkedip disebut....

• A.

Flasher

• B.

• C.

Dimmer switch

• D.

Relay

• E.

Fuse

A. Flasher
Explanation
The correct answer is "Flasher". A flasher is a device that causes the turn signal lights to blink when the switch is pressed. It has a specific interval of time for the blinking pattern.

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• 25.

### Berikut ini ketentuan ukuran kabel pada sirkuit kelistrikan yang digunakan pada kelistrikan bodi,  kecuali ….

• A.

Besarnya arus yang lewat

• B.

Panjang dari suatu sirkuit kelistrikan

• C.

Besarnya tegangan yang lewat

• D.

Penurunan tegangan yang diijinkan

• E.

Resistan yang digunakan

C. Besarnya tegangan yang lewat
Explanation
The size of the cable used in the electrical circuit for the body depends on the voltage that passes through it. Different voltages require different sizes of cables to ensure the safe and efficient transmission of electricity. Therefore, the correct answer is "Besarnya tegangan yang lewat" (The magnitude of the voltage that passes through).

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• 26.

### Komponen-komponen penghubung jaringan pada kelistrikan bodi yaitu ...

• A.

Relay, junction block, connector dan baut massa

• B.

Connector, baut massa, relay block dan junction block

• C.

Baut massa, konektor, fusible link, dan junction block

• D.

Relay, connector, fusible link dan baut massa

• E.

Relay block, baut massa, fuse, dan junction block

D. Relay, connector, fusible link dan baut massa
Explanation
The correct answer is Relay, connector, fusible link, and baut massa. This is because these components are the ones that connect the electrical system in the body. The relay is responsible for controlling the flow of electricity, the connector is used to join different electrical components, the fusible link is a safety device that protects the electrical system from overloads, and baut massa is used to ground the electrical system.

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• 27.

### Berikut ini komponen-komponen pelindung sirkuit jaringan kabel pada kelistrikan bodi yaitu, kecuali ....

• A.

Fuse

• B.

Relay block

• C.

• D.

Saklar

• E.

Circuit breaker

B. Relay block
Explanation
The given options are components that provide protection for circuit networks in the body's electricity. The relay block is not a component that provides protection for circuit networks in the body's electricity.

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• 28.

• A.

Mengijinkan arus listrik mengalir melewati rangkaian kelistrikan

• B.

Melindungi semua komponen kelistrikan dari arus berlebih yang datang

• C.

Melindungi kabel penghubung agar tidak terbakar

• D.

Menyeimbangkan arus yang masuk dan keluar

• E.

Memutuskan arus listrik yang mengalir pada rangkaian kelistrikan

B. Melindungi semua komponen kelistrikan dari arus berlebih yang datang
Explanation
The correct answer is "Melindungi semua komponen kelistrikan dari arus berlebih yang datang". A fuse is a safety device that is designed to protect electrical circuits from excessive current. When the current flowing through a circuit exceeds the rated limit of the fuse, it will melt and break the circuit, preventing further damage to the components. Therefore, a fuse acts as a protective barrier, safeguarding the electrical components from potential harm caused by excessive current.

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• 29.

• A.

• B.

• C.

• D.

• E.

Explanation

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• 30.

### Tipe-tipe saklar yang benar pada kelistrikan bodi dibawah ini, kecuali.....

• A.

Saklar tarik

• B.

Saklar putar

• C.

Saklar ungkit

• D.

Saklar tuas

• E.

Saklar tekan

A. Saklar tarik
Explanation
The correct answer is "Saklar tarik." The other options listed (saklar putar, saklar ungkit, saklar tuas, saklar tekan) are all types of switches commonly used in electrical systems. However, "saklar tarik" is not a valid type of switch in electrical body systems.

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• 31.

### Berfungsi untuk mengatur tingkat kecepatan dalam proses pemindahan tenaga dari sumber tenaga ke roda kendaraan adalah…

• A.

Kopling

• B.

Transmisi

• C.

Propeller shaft

• D.

Differensial

• E.

Universal Joint

B. Transmisi
Explanation
Transmisi berfungsi untuk mengatur tingkat kecepatan dalam proses pemindahan tenaga dari sumber tenaga ke roda kendaraan. Transmisi ini memiliki beberapa gigi yang dapat dipindahkan untuk mengatur tingkat kecepatan yang diinginkan. Dengan mengubah gigi pada transmisi, tenaga dari mesin dapat disalurkan dengan efisien ke roda kendaraan sesuai dengan kebutuhan saat berkendara.

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• 32.

### Letak atau posisi transmisi pada kendaraan dipasang dibelakang…

• A.

Kopling

• B.

Transmisi

• C.

Propeller shaft

• D.

Differensial

• E.

Universal joint

A. Kopling
Explanation
The correct answer is "Kopling". The explanation for this answer is that the transmission is installed behind the clutch in a vehicle. The clutch is responsible for engaging and disengaging the engine power to the transmission. Therefore, the transmission is located behind the clutch in order to receive the power from the engine and transmit it to the propeller shaft, differential, and universal joint to drive the wheels.

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• 33.

### Transmisi dikenal dengan istilah…

• A.

Engine

• B.

Clutch

• C.

Gear box

• D.

Fine drive/Differensial

• E.

Kopel/Profeller shaft

C. Gear box
Explanation
The correct answer is "Gear box". A gear box is a component in a vehicle that is responsible for transmitting power from the engine to the wheels. It contains a series of gears that allow the driver to change the speed and torque of the vehicle. The gear box is an essential part of the transmission system and is commonly found in automobiles.

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• 34.

### Pada unit power train, transmisi termasuk komponen yang ke....

• A.

1

• B.

2

• C.

3

• D.

4

• E.

5

B. 2
Explanation
The correct answer is 2. In the powertrain unit, the transmission is one of the components that play a crucial role in transferring power from the engine to the wheels of a vehicle. It is responsible for changing the gear ratios to provide the appropriate amount of power and torque for different driving conditions. Without a functioning transmission, the power from the engine would not be effectively transmitted to the wheels, resulting in poor performance and inability to move the vehicle.

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• 35.

### Unit power train yang berfungsi sebagai pemutus dan penghubung tenaga dan putaran engine fly wheel ke input transmission adalah...

• A.

Kopling

• B.

Propeller shaft

• C.

Universal joint

• D.

Differensial

• E.

Rear axle shaft

A. Kopling
Explanation
The correct answer is "Kopling." A clutch, or kopling, is a unit in the powertrain that functions as a disconnector and connector of power and rotation between the engine's flywheel and the input transmission. It allows for smooth engagement and disengagement of the engine's power to the transmission, enabling the driver to shift gears and control the vehicle's speed.

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• 36.

### Unit power train yang berfungsi meneruskan putaran dari differensial ke roda adalah...

• A.

Kopling

• B.

Propeller shaft

• C.

Universal joint

• D.

Differensial

• E.

Rear axle shaft

E. Rear axle shaft
Explanation
The correct answer is "Rear axle shaft". The rear axle shaft is responsible for transmitting power from the differential to the wheels. It connects the differential to the rear wheels, allowing the wheels to rotate and move the vehicle forward or backward. This component is essential in transferring torque from the engine to the wheels, enabling the vehicle to move efficiently.

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• 37.

• A.

Kopling

• B.

Propeller shaft

• C.

Universal joint

• D.

Differensial

• E.

Rear axle shaft

D. Differensial
Explanation
The correct answer is Differensial. Differensial adalah komponen yang berfungsi untuk membagi dan mengatur putaran yang diterima dari mesin ke roda-roda kendaraan. Komponen ini sangat penting dalam sistem power train karena memungkinkan roda-roda kendaraan dapat berputar dengan kecepatan yang berbeda saat melakukan belokan. Differensial juga membantu dalam meningkatkan traksi dan stabilitas kendaraan.

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• 38.

### Jenis transmisi manual yang sekarang banyak dipergunakan pada kendaraan modern adalah…

• A.

Sliding mesh type

• B.

Constant mesh type

• C.

Synchromesh type

• D.

Overdrive

• E.

Automatic transmission

C. Synchromesh type
Explanation
The synchromesh type of manual transmission is commonly used in modern vehicles. This type of transmission uses synchronizers to match the speed of the gears before engaging them, allowing for smoother and easier shifting. It eliminates the need for double clutching or rev-matching, making it more user-friendly for drivers. The synchromesh type is known for its efficiency and durability, making it a popular choice for modern vehicles.

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• 39.

### Jenis transmisi manual yang paling sederhana sekali konstruksinya adalah…

• A.

Sliding mesh type

• B.

Constant mesh type

• C.

Synchromesh type

• D.

Overdrive

• E.

Automatic transmission

A. Sliding mesh type
Explanation
The sliding mesh type of manual transmission is the simplest in construction. In this type, the gears on the main shaft and the gears on the lay shaft are engaged by sliding them into mesh with each other. However, shifting gears in this type of transmission requires the clutch to be disengaged, which can cause a jolt or jerking motion.

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• 40.

### Sedangkan jenis transmisi yang kontruksinya terdapat roda gigi yang tetap selalu berhubungan (berkaitan) disebut….

• A.

Sliding mesh type

• B.

Constant mesh type

• C.

Synchromesh type

• D.

Overdrive

• E.

Automatic transmission

B. Constant mesh type
Explanation
Constant mesh type transmisi memiliki konstruksi roda gigi yang tetap selalu berhubungan satu sama lain. Dalam jenis transmisi ini, gigi-gigi pada poros input dan output selalu berhubungan dan dapat berputar bersama-sama. Dengan adanya konstruksi ini, perpindahan gigi dapat dilakukan dengan lebih lancar dan tanpa gangguan.

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• 41.

### Komponen synchromesh dimana diameter luarnya dibuat alur untuk tempat kedudukan shift fork adalah…

• A.

Clutch hub

• B.

Clutch heal sleeve

• C.

Synchornizer ring

• D.

Shifiing key

• E.

Key spring

A. Clutch hub
Explanation
The clutch hub is the correct answer because it is the component of the synchromesh system where the outer diameter is grooved to accommodate the position of the shift fork. This allows for smooth shifting between gears in a manual transmission. The clutch hub connects the engine to the transmission and is responsible for transferring power from the engine to the wheels.

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• 42.

### Komponen transmisi yang berhubungan dengan kopling adalah…

• A.

Input shaft transmission

• B.

Output shaft transmission

• C.

Counter shaft

• D.

Counter gear

• E.

Shift fork

A. Input shaft transmission
Explanation
The correct answer is "Input shaft transmission" because the input shaft is the component of the transmission that connects to the engine's crankshaft and receives power from it. It is responsible for transmitting the rotational motion and torque from the engine to the rest of the transmission system, including the clutch. The input shaft is directly connected to the clutch assembly, allowing it to engage and disengage the engine's power to the transmission. Therefore, it is the main component that is directly related to the clutch in the transmission system.

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• 43.

### Komponen transmisi yang berhubungan dengan propeller shaft adalah…

• A.

Input shaft transmission

• B.

Output shaft transmission

• C.

Counter shaft

• D.

Counter gear

• E.

Shift fork

B. Output shaft transmission
Explanation
The output shaft transmission is the component of the transmission system that is connected to the propeller shaft. It is responsible for transmitting the power from the engine to the wheels of the vehicle. The output shaft receives the rotational force from the engine and transfers it to the propeller shaft, which then sends the power to the wheels. This allows the vehicle to move forward or backward, depending on the gear selected.

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• 44.

### Untuk mengoperasionalkan transmisi yaitu merubah dari kecepatan yang satu ke kecepatan yang lain, maka pada transmisi dipasang….

• A.

Mekanisme selector

• B.

Shift lever

• C.

Shift fork

• D.

Shift fork lock

• E.

C. Shift fork
Explanation
To operate the transmission and change from one speed to another, a shift fork is installed. The shift fork is responsible for engaging and disengaging the gears in the transmission, allowing the driver to select the desired speed. It is a crucial component in the transmission system that facilitates smooth gear shifting and ensures proper power transfer between the engine and the wheels.

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• 45.

### Dimana perpindahan giginya terjadi secara otomatis berdasarkan beban mesin adalah fungsi dari…

• A.

Automatic transmission

• B.

Sliding mesh transmission

• C.

Synchormesh transmission

• D.

Coustant mesh transmission

• E.

OverdriveI

A. Automatic transmission
Explanation
Automatic transmission is the correct answer because it is the type of transmission where the shifting of gears occurs automatically based on the engine load. Unlike manual transmissions where the driver has to manually shift gears, in automatic transmission, the gear changes are done automatically by the transmission system. This allows for smoother and more convenient driving, especially in heavy traffic or when driving on hilly terrains.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Dec 26, 2018
Quiz Created by
NurasiahZamil