Question
21
Apa fungsi utama dari economizer pada ketel uap?
What is the main function of the economizer in a steam boiler?
Options
a
Memanaskan air pengisi ketel sebelum masuk ke dalam ketel uap
To preheat the boiler feedwater before it enters the steam boiler
b
Mengurangi tekanan dalam ketel uap
To reduce the pressure in the steam boiler
c
Mengontrol kadar uap yang dihasilkan
To control the amount of steam produced
d
Menurunkan suhu gas buang
To lower the exhaust gas temperature
Grade
Easy
Last Update
29 Jul 2026 11:40
By Tanjung
Question
22
Apa manfaat dari pemanas udara (LUVO)?
What is the benefit of the air heater?
Options
a
Meningkatkan suhu udara sebelum masuk ke ruang pembakaran
To increase the temperature of the air before it enters the combustion chamber
b
Meningkatkan kadar air dalam uap
To increase the water content in the steam
c
Mendinginkan gas buang sebelum keluar
To cool the exhaust gas before discharge
d
Mengatur tekanan dalam ketel
To regulate the pressure in the boiler
Grade
Easy
Last Update
29 Jul 2026 11:41
By Tanjung
Question
23
Perangkat pengopakan dengan minyak terdiri dari komponen berikut, kecuali...
Oil-firing equipment consists of the following components, except...
Options
a
Manometer
Pressure gauge
b
Pompa bahan bakar
Fuel pump
c
Atomizer burner
Atomizer burner
d
Igniter
Igniter
Grade
Medium
Last Update
29 Jul 2026 11:42
By Tanjung
Question
24
Penghembus jelaga (soot blower) berfungsi untuk...
The soot blower functions to...
Options
a
Membersihkan jelaga dari permukaan ketel
Clean soot from the boiler surfaces
b
Meningkatkan tekanan uap dalam ketel
Increase steam pressure in the boiler
c
Menambah bahan bakar ke dalam ruang bakar
Add fuel into the furnace
d
Mengurangi kadar air dalam uap
Reduce the water content in the steam
Grade
Easy
Last Update
29 Jul 2026 11:42
By Tanjung
Question
25
Cascade tank atau hotwell berfungsi untuk...
The cascade tank or hotwell functions to...
Options
a
Menghilangkan gas-gas seperti oksigen dari air pengisi ketel
Remove gases such as oxygen from the boiler feedwater
b
Menambah tekanan dalam ketel uap
Increase pressure in the steam boiler
c
Mengontrol jumlah bahan bakar yang digunakan
Control the amount of fuel used
d
Mengatur temperatur uap dalam boiler
Regulate the steam temperature in the boiler
Grade
Easy
Last Update
29 Jul 2026 11:43
By Tanjung
Question
26
Air umpan ketel diisikan ke dalam ketel menggunakan...
Boiler feedwater is supplied into the boiler by using...
Options
a
Pompa air pengisi ketel (feed water pump)
Feed water pump
b
Pemanas udara
Air heater
c
Penghembus jelaga
Soot blower
d
Katup bilas
Blowdown valve
Grade
Easy
Last Update
29 Jul 2026 11:43
By Tanjung
Question
27
Apa fungsi utama dari ketel induk (main boiler)?
What is the main function of the main boiler?
Options
a
Menghasilkan uap untuk menjalankan turbin uap mesin induk
To produce steam for driving the main engine steam turbine
b
Menjalankan pesawat bantu seperti pompa
To operate auxiliary machinery such as pumps
c
Mengatur suhu uap dalam ketel
To regulate the steam temperature in the boiler
d
Membersihkan sisa pembakaran dalam boiler
To clean combustion residues in the boiler
Grade
Easy
Last Update
29 Jul 2026 11:44
By Tanjung
Question
28
Ketel bantu (auxiliary boiler) digunakan untuk...
An auxiliary boiler is used to...
Options
a
Menjalankan pesawat bantu seperti turbin pompa dan pemanas
Operate auxiliary machinery such as pump turbines and heaters
b
Menghasilkan listrik utama kapal
Generate the ship’s main electrical power
c
Menyimpan air dalam jumlah besar
Store large quantities of water
d
Mengontrol kadar air dalam boiler
Control the water content in the boiler
Grade
Easy
Last Update
29 Jul 2026 11:44
By Tanjung
Question
29
Ketel bantu bisa menghasilkan uap dari...
An auxiliary boiler can produce steam from...
Options
a
Panas gas buang motor induk
The exhaust gas heat of the main engine
b
Sumber listrik eksternal
An external power source
c
Udara dari luar
Outside air
d
Pendinginan air laut
Sea water cooling
Grade
Medium
Last Update
29 Jul 2026 11:44
By Tanjung
Question
30
Pada ketel pipa api, posisi air dan gas pemanasnya adalah...
In a fire-tube boiler, the position of the water and the heating gas is...
Options
a
Air berada di luar pipa, gas pemanas mengalir di dalam pipa
The water is outside the tubes, and the heating gas flows inside the tubes
b
Air berada di dalam pipa, gas pemanas mengalir di luar pipa
The water is inside the tubes, and the heating gas flows outside the tubes
c
Gas pemanas berada di dalam air ketel
The heating gas is inside the boiler water
d
Air dan gas pemanas bercampur dalam satu ruang
The water and heating gas are mixed in one space
Grade
Easy
Last Update
29 Jul 2026 11:45
By Tanjung