BASIC HYDRAULIC

Quiz
•
Specialty
•
Professional Development
•
Medium
suyani zahra
Used 38+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Pompa pada roda gigi ( gear pump ) adalah
Positive displacement pump
Non positive displacement pump fix type
Non positive displacement pump
Positive displacement pump fix type
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Unit bulldozer, gerakan naik dari blade lift cylinder tersendat sendat, hal ini disebabkan oleh
Vacuum valve macet
Kebocoran pada section line
Hydraulic pump aus
Hydraulic oil terlalu penuh
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Dalam pengetesan bulldozer didapatkan relief pressure menunjuk 100 kg/cm2 ( standard pressure max 140 kg/cm2 ) dan kecepatan drift masih dalam standard. Penyimpangan tersebut disebabkan oleh
Hydraulic pump aus
Quick drop valve bocor
Control valve bocor
Spring main relief valve lemah
4.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Untuk mengetahui kebocoran salah satu piston seal pada lift silinder adalah dengan cara
Blade dihold menggantung, lepas salah satu hose bagian bottom cylinder
Blade dihold menggantung, lepas salah satu hose bagian head cylinder
Blade dilepas, control valve posisi hold, kemudian perhatikan rod mana yang lebih dahulu keluar
Badan tractor diangkat, control valve di hold badan tractor akan turun.
5.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Tanki hydrolic yang pressurise bertujuan untuk
Mengurangi gelembung-gelembung
Mengurangi keausan berlebihan pada pump
Membantu pompa
Menempatkan control valve didalam tank
6.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Dari pernyataan gambar disamping ini maka piston akan
Kekanan dengan F = 23.55 ton
Kekanan dengan F = 1000 kg
Kekiri dengan F = 1000 kg
Diam
7.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Top clearance dikurangi karena adanya
Side plate dan bushing
Bushing dan seal ring
V-groove dan seal plate
Semua jawaban benar
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