Question
31
Untuk mesin reversibel, kapasitas tabung udara start harus cukup untuk minimal berapa kali start?
For a reversible engine, the starting air receiver capacity must be sufficient for a minimum of how many starts?
Options
a
12 kali
12 times
b
6 kali
6 times
c
8 kali
8 times
d
4 kali
4 times
Grade
Easy
Last Update
04 Aug 2026 12:57
By Gabriel
Question
32
Untuk mesin non-reversibel, kapasitas tabung udara start harus cukup untuk minimal berapa kali start?
For a non-reversible engine, the starting air receiver capacity must be sufficient for a minimum of how many starts?
Options
a
6 kali
6 times
b
12 kali
12 times
c
10 kali
10 times
d
3 kali
3 times
Grade
Easy
Last Update
04 Aug 2026 12:57
By Gabriel
Question
33
Apa fungsi distributor udara start?
What is the function of the starting air distributor?
Options
a
Menyalurkan udara start ke silinder sesuai urutan start yang benar
To deliver starting air to the cylinders in the correct starting sequence
b
Menurunkan temperatur udara start sebelum masuk kompresor
To reduce the temperature of the starting air before it enters the compressor
c
Mengatur suplai bahan bakar ke injector
To regulate the fuel supply to the injector
d
Memisahkan air dari minyak lumas
To separate water from lubricating oil
Grade
Easy
Last Update
04 Aug 2026 12:57
By Gabriel
Question
34
Apa fungsi starting air valve pada tiap silinder?
What is the function of the starting air valve on each cylinder?
Options
a
Membuka aliran udara start ke silinder pada saat yang tepat
To open the flow of starting air into the cylinder at the correct time
b
Membuang gas buang dari silinder ke cerobong
To discharge exhaust gas from the cylinder to the funnel
c
Mengatur jumlah minyak lumas ke crosshead
To regulate the amount of lubricating oil to the crosshead
d
Menurunkan tekanan kompresi pada saat usaha
To reduce compression pressure during the power stroke
Grade
Easy
Last Update
04 Aug 2026 12:58
By Gabriel
Question
35
Mengapa kondensat pada tabung udara start harus dibuang secara berkala?
Why must condensate in the starting air receiver be drained periodically?
Options
a
Untuk mencegah terbawanya air ke sistem start yang dapat merusak komponen
To prevent water from being carried into the starting system, which could damage components
b
Untuk menaikkan tekanan udara melebihi batas kerja
To raise the air pressure beyond the working limit
c
Untuk meningkatkan kadar oksigen di dalam tabung
To increase the oxygen content inside the receiver
d
Untuk mempercepat kerja purifier
To speed up purifier operation
Grade
Easy
Last Update
04 Aug 2026 12:58
By Gabriel
Question
36
Apa fungsi safety valve pada tabung udara start?
What is the function of the safety valve on the starting air receiver?
Options
a
Melindungi tabung dari tekanan berlebih
To protect the receiver from overpressure
b
Menambah kapasitas udara start
To increase starting air capacity
c
Mengeringkan udara start secara otomatis
To dry the starting air automatically
d
Mengatur arah putaran mesin induk
To control the direction of main engine rotation
Grade
Easy
Last Update
04 Aug 2026 12:59
By Gabriel
Question
37
Mengapa jalur udara start dan tabung udara perlu didrain sebelum pengoperasian?
Why do the starting air line and air receiver need to be drained before operation?
Options
a
Agar air dan kondensat tidak masuk ke silinder atau katup start
So that water and condensate do not enter the cylinder or starting valve
b
Agar bahan bakar lebih mudah terbakar
So that the fuel burns more easily
c
Agar putaran mesin induk meningkat
So that the main engine speed increases
d
Agar suhu udara start menjadi lebih tinggi
So that the temperature of the starting air becomes higher
Grade
Easy
Last Update
04 Aug 2026 12:59
By Gabriel
Question
38
Apa fungsi main starting valve dalam sistem starting air?
What is the function of the main starting valve in the starting air system?
Options
a
Membuka dan menutup suplai udara start utama ke manifold start
To open and close the main starting air supply to the starting manifold
b
Mengatur temperatur air pendingin piston
To regulate piston cooling water temperature
c
Menghubungkan pompa bilga ke tabung udara
To connect the bilge pump to the air receiver
d
Mencampur udara start dengan bahan bakar
To mix starting air with fuel
Grade
Easy
Last Update
04 Aug 2026 12:59
By Gabriel
Question
39
Apa tujuan interlock turning gear pada mesin induk?
What is the purpose of the turning gear interlock on the main engine?
Options
a
Mencegah mesin di-start saat turning gear masih terpasang
To prevent the engine from being started while the turning gear is still engaged
b
Menjaga tekanan minyak lumas tetap tinggi
To keep lubricating oil pressure high
c
Meningkatkan putaran poros engkol saat manuver
To increase crankshaft speed during maneuvering
d
Memudahkan pembukaan katup buang
To facilitate opening the exhaust valve
Grade
Easy
Last Update
04 Aug 2026 13:00
By Gabriel
Question
40
Pada beberapa kapal, sistem udara start juga dapat dipakai untuk keperluan apa?
On some ships, the starting air system may also be used for what purpose?
Options
a
Start mesin bantu berukuran besar
Starting large auxiliary engines
b
Menaikkan temperatur bahan bakar berat
Increasing the temperature of heavy fuel oil
c
Menggerakkan purifier minyak lumas
Driving the lubricating oil purifier
d
Mendinginkan turbocharger saat olah gerak
Cooling the turbocharger during maneuvering
Grade
Easy
Last Update
04 Aug 2026 13:00
By Gabriel