Question
871
Keunggulan mesin diesel sebagai penggerak utama kapal, kecuali ...
Which of the following is not an advantage of a diesel engine as a ship’s main engine?
Options
a
Memerlukan busi untuk penyalaan
It requires spark plugs for ignition
b
Efisiensi termalnya tinggi
It has high thermal efficiency
c
Torsi besar pada putaran rendah
It produces high torque at low speed
d
Konstruksinya kuat untuk kerja berat
Its construction is strong for heavy-duty operation
Grade
Ungraded
Last Update
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Question
872
Fungsi ring piston adalah ...
What is the function of the piston ring?
Options
a
Menjaga kerapatan kompresi dan mengontrol minyak lumas pada dinding silinder
To maintain compression sealing and control lubricating oil on the cylinder wall
b
Membuka katup hisap pada saat langkah kompresi
To open the intake valve during the compression stroke
c
Mengabutkan bahan bakar saat injeksi
To atomize fuel during injection
d
Menyalurkan udara start ke ruang bakar
To supply starting air to the combustion chamber
Grade
Ungraded
Last Update
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Question
873
Fungsi roda gila pada mesin diesel adalah ...
What is the function of the flywheel in a diesel engine?
Options
a
Menstabilkan putaran mesin
To stabilize engine rotation
b
Menaikkan tekanan bahan bakar
To increase fuel pressure
c
Mendinginkan gas buang
To cool exhaust gas
d
Memisahkan air dari minyak lumas
To separate water from lubricating oil
Grade
Ungraded
Last Update
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Question
874
Fungsi governor pada mesin induk adalah ...
What is the function of the governor on the main engine?
Options
a
Mengatur putaran mesin sesuai beban
To regulate engine speed according to load
b
Mendinginkan udara bilas
To cool scavenge air
c
Memisahkan sludge dari bahan bakar
To separate sludge from fuel
d
Mengukur tinggi permukaan air ketel
To measure the water level in the boiler
Grade
Ungraded
Last Update
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Question
875
Fungsi cylinder liner pada mesin diesel adalah ...
What is the function of the cylinder liner in a diesel engine?
Options
a
Menjadi dinding silinder dan jalur luncur piston
To form the cylinder wall and provide the sliding surface for the piston
b
Menyimpan bahan bakar sebelum injeksi
To store fuel before injection
c
Menggerakkan katup buang
To operate the exhaust valve
d
Menyalurkan udara start dari botol angin
To deliver starting air from the air receiver
Grade
Ungraded
Last Update
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Question
876
Fungsi cylinder head pada mesin diesel adalah ...
What is the function of the cylinder head in a diesel engine?
Options
a
Menutup bagian atas silinder dan menjadi dudukan katup serta injector
To close the top of the cylinder and provide seats for the valves and injector
b
Menyalurkan tenaga ke baling-baling
To transmit power to the propeller
c
Mendinginkan minyak lumas di karter
To cool lubricating oil in the crankcase
d
Memisahkan air dari bahan bakar di purifier
To separate water from fuel in the purifier
Grade
Ungraded
Last Update
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By -
Question
877
Fungsi exhaust valve adalah ...
What is the function of the exhaust valve?
Options
a
Membuang gas hasil pembakaran dari silinder
To discharge combustion gases from the cylinder
b
Memasukkan udara bilas ke silinder
To admit scavenge air into the cylinder
c
Mengabutkan bahan bakar ke ruang bakar
To atomize fuel into the combustion chamber
d
Mengatur putaran turbocharger
To regulate turbocharger speed
Grade
Ungraded
Last Update
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By -
Question
878
Fungsi intake valve pada mesin diesel 4 tak adalah ...
What is the function of the intake valve in a four-stroke diesel engine?
Options
a
Memasukkan udara segar ke dalam silinder
To admit fresh air into the cylinder
b
Membuang gas buang ke exhaust manifold
To discharge exhaust gas into the exhaust manifold
c
Menyalurkan minyak lumas ke piston pin
To deliver lubricating oil to the piston pin
d
Mengatur tekanan di botol angin
To regulate pressure in the air receiver
Grade
Ungraded
Last Update
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Question
879
Fungsi camshaft pada mesin adalah ...
What is the function of the camshaft in an engine?
Options
a
Menggerakkan mekanisme katup sesuai timing mesin
To operate the valve mechanism according to engine timing
b
Menjadi jalur luncur piston di dalam silinder
To form the sliding surface for the piston inside the cylinder
c
Menahan beban poros engkol
To support the crankshaft load
d
Menyimpan energi putar mesin
To store rotational energy
Grade
Ungraded
Last Update
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By -
Question
880
Fungsi rocker arm pada mekanisme katup adalah ...
What is the function of the rocker arm in the valve mechanism?
Options
a
Meneruskan gerak dari camshaft atau push rod ke katup
To transmit motion from the camshaft or push rod to the valve
b
Menampung bahan bakar sebelum masuk injector
To hold fuel before it enters the injector
c
Mengubah gas buang menjadi udara bilas
To convert exhaust gas into scavenge air
d
Mengukur tekanan kompresi di silinder
To measure compression pressure in the cylinder
Grade
Ungraded
Last Update
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