Question
91
Apa fungsi air compressor pada kapal?
What is the function of the air compressor on board?
Options
a
Menghasilkan udara bertekanan untuk start dan keperluan pneumatik
To produce compressed air for starting and pneumatic purposes
b
Mendinginkan minyak lumas sebelum masuk mesin
To cool lubricating oil before it enters the engine
c
Memisahkan air dari bahan bakar berat
To separate water from heavy fuel
d
Menggerakkan poros baling-baling secara langsung
To drive the propeller shaft directly
Grade
Ungraded
Last Update
-
By -
Question
92
Apa fungsi intercooler pada kompresor bertingkat?
What is the function of the intercooler in a multistage compressor?
Options
a
Mendinginkan udara antar tingkat kompresi agar kerja kompresor lebih efisien
To cool the air between compression stages so compressor work becomes more efficient
b
Menaikkan tekanan akhir tanpa menambah kerja kompresor
To increase final pressure without increasing compressor work
c
Memisahkan minyak lumas dari bahan bakar
To separate lubricating oil from fuel
d
Menyuplai udara bilas ke silinder tanpa blower
To supply scavenging air to the cylinder without a blower
Grade
Ungraded
Last Update
-
By -
Question
93
Apa fungsi safety valve pada ketel bantu?
What is the function of the safety valve on an auxiliary boiler?
Options
a
Melepas tekanan berlebih agar ketel tetap aman
To release excess pressure so the boiler remains safe
b
Menambah tekanan uap saat pembakaran lemah
To increase steam pressure when combustion is weak
c
Mengatur tinggi air ketel di gelas penduga
To regulate boiler water level in the gauge glass
d
Mengalirkan bahan bakar ke burner secara manual
To deliver fuel to the burner manually
Grade
Ungraded
Last Update
-
By -
Question
94
Apa fungsi feed check valve pada ketel?
What is the function of the feed check valve on a boiler?
Options
a
Mencegah aliran balik air ketel ke pipa air pengisi
To prevent boiler water from flowing back into the feed line
b
Mengatur tekanan udara start ke receiver
To regulate starting air pressure to the receiver
c
Membuang sludge dari dasar ketel
To discharge sludge from the bottom of the boiler
d
Mendinginkan uap sebelum masuk superheater
To cool steam before it enters the superheater
Grade
Ungraded
Last Update
-
By -
Question
95
Apa fungsi economizer pada sistem ketel atau gas buang?
What is the function of the economizer in a boiler or exhaust gas system?
Options
a
Memanfaatkan panas gas buang untuk memanaskan air pengisi sehingga efisiensi meningkat
To utilize exhaust gas heat to warm feed water so efficiency increases
b
Menurunkan tekanan uap utama sebelum masuk turbin
To reduce main steam pressure before it enters the turbine
c
Mengubah air laut menjadi minyak lumas
To convert seawater into lubricating oil
d
Menyimpan uap jenuh untuk keperluan start mesin
To store saturated steam for engine starting
Grade
Ungraded
Last Update
-
By -