
MAPELPILIHAN XII

Quiz
•
Other
•
12th Grade
•
Easy
Moch. Wahyu permadi
Used 1+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sepeda motor injeksi sulit dihidupkan pada pagi hari namun normal setelah panas. Kemungkinan utama:
Filter udara kotor
Sensor suhu mesin (ECT) bermasalah
Oli mesin encer
Regulator voltase rusak
Busi aus
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tekanan bahan bakar terbaca 20% di bawah standar. Penyebab paling logis:
Busi aus
Pompa bahan bakar melemah
Celah katup terlalu lebar
Oli mesin berlebih
Filter udara kotor
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Debit semprotan injektor tidak merata saat uji semprot. Langkah awal:
Ganti ECU
Bersihkan injektor dengan ultrasonic cleaner
Ganti aki
Setel ulang TPS
Ganti sensor O2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kerusakan sensor O2 menyebabkan:
Mesin tak dapat distarter
Konsumsi bahan bakar dan emisi gas buang meningkat
Tekanan oli menurun
Pendingin mesin mendidih
Kopling selip
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Saat kalibrasi injektor, tekanan bahan bakar harus konstan karena:
Menghindari kebocoran oli
Menjamin debit semprotan terukur akurat
Menambah kecepatan aliran udara
Mengurangi gesekan rantai
Memanaskan mesin lebih cepat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Timing pengapian terlalu maju dapat:
Mempercepat pendinginan mesin
Menimbulkan detonasi karena tekanan puncak sebelum TMA
Mempercepat ausnya rantai keteng
Menurunkan konsumsi bahan bakar
Mempercepat pengisian aki
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Misfire pada putaran menengah paling efektif dideteksi dengan:
Scanner OBD
Oscilloscope untuk pola sinyal pengapian
Multimeter analog
Mikrometer
Tachometer manual
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