ASESMEN FORMATIF SISTEM BAHAN BAKAR GASOLINE ELEKTRONIK (EFI)
Quiz
•
Engineering
•
11th Grade
•
Practice Problem
•
Medium
Andi Muhammad Akbar
Used 3+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar berikut! Mengapa lampu indikator check engine bisa menyala saat mesin hidup pada sistem EFI?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa dampak yang ditimbulkan jika sensor suhu memberikan data yang salah ke ECU dalam sistem EFI?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar berikut! Apa fungsi hubungan antara sensor, ECU, dan aktuator dalam menjaga efisiensi bahan bakar pada sistem EFI?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa mekanisme kerja sistem EFI dalam menjaga kestabilan mesin saat idle pada suhu dingin?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan tahapan mekanisme kerja sistem EFI berikut: · Kunci kontak ON: sistem elektrikal aktif, ECU mulai bekerja, dan fuel pump menyala selama beberapa detik untuk menekan bahan bakar dari tangki ke fuel rail. · Sensor suhu (WTS) mendeteksi bahwa mesin masih dingin, sehingga ECU mengaktifkan mode rich mixture (campuran kaya bahan bakar) agar mesin tidak pincang atau mati. · Udara masuk dari saringan udara, lalu melewati saluran bypass ke throttle body dan menuju intake manifold. Berdasarkan tahapan yang disajikan, fase mekanisme kerja EFI apa yang sedang berlangsung sesuai fungsi sensor dan respons sistem?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar berikut. Tahapan mekanisme kerja: · Saat AC dinyalakan, sensor beban AC mengirimkan sinyal ke ECU. · ECU merespons dengan membuka Idle Speed Control (ISC) lebih lebar agar jumlah udara yang masuk bertambah. · Throttle tetap tertutup, tetapi suplai udara naik lewat bypass valve. · ECU menambah durasi semprotan injektor, sehingga debit bahan bakar juga bertambah sesuai penambahan udara. Berdasarkan tahapan yang disajikan, fase kerja sistem EFI apa yang terjadi saat AC dinyalakan dan ISC terbuka lebih lebar?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar berikut. · Tahapan mekanisme kerja sistem EFI berikut: · Saat pedal gas diinjak, Throttle Position Sensor (TPS) mendeteksi perubahan sudut bukaan throttle. · Mass Air Flow (MAF) sensor atau Manifold Absolute Pressure (MAP) sensor mendeteksi jumlah udara masuk dan tekanan di intake manifold. · Data dari berbagai sensor (termasuk RPM, suhu mesin, dan posisi throttle) dikirim ke ECU untuk dianalisis. Fase mekanisme kerja EFI apa yang sesuai saat pedal gas diinjak dan sensor mendeteksi perubahan beban serta udara masuk?
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