Question
3031
Jika pompa air umpan mengalami cavitation, hal yang perlu diperiksa adalah ...
If the feedwater pump experiences cavitation, what should be checked is ...
Options
a
sisi isap pompa, ketersediaan NPSH, dan kondisi impeller
the suction side of the pump, NPSH availability, and the condition of the impeller
b
warna nyala api burner
the burner flame color
c
tekanan uap di steam trap
the steam pressure at the steam trap
d
bukaan safety valve
the opening of the safety valve
Grade
Ungraded
Last Update
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Question
3032
Jika terbentuk scale pada boiler, tindakan yang tepat adalah ...
If scale forms in the boiler, the proper action is to ...
Options
a
melakukan pembersihan dan memperbaiki pengolahan air
carry out cleaning and improve water treatment
b
menaikkan tekanan agar kerak lepas sendiri
raise the pressure so the scale detaches by itself
c
mengabaikannya selama produksi uap cukup
ignore it as long as steam production is sufficient
d
menambah bahan bakar untuk mengimbangi kehilangan panas
add fuel to compensate for heat loss
Grade
Ungraded
Last Update
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By -
Question
3033
Jika terjadi carryover pada boiler, tindakan yang tepat adalah ...
If carryover occurs in the boiler, the proper action is to ...
Options
a
menurunkan beban bila perlu dan memeriksa kondisi air boiler
reduce the load if necessary and check the boiler water condition
b
menambah bahan bakar agar uap lebih kering
add fuel so the steam becomes drier
c
menutup semua jalur kondensat
close all condensate lines
d
membiarkannya selama tekanan normal
leave it as long as the pressure is normal
Grade
Ungraded
Last Update
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By -
Question
3034
Jika terjadi foaming pada boiler, hal yang perlu diperiksa adalah ...
If foaming occurs in the boiler, what should be checked is ...
Options
a
kondisi kualitas air dan level air dalam boiler
the water quality condition and the water level in the boiler
b
temperatur ruang mesin
the engine room temperature
c
putaran combustion air blower saja
only the speed of the combustion air blower
d
ketegangan ignition transformer
the voltage of the ignition transformer
Grade
Ungraded
Last Update
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By -
Question
3035
Jika terjadi tube rupture pada boiler, tindakan yang benar adalah ...
If tube rupture occurs in the boiler, the correct action is to ...
Options
a
menghentikan operasi dan mengamankan boiler sesuai prosedur darurat
stop operation and secure the boiler according to emergency procedure
b
melanjutkan operasi pada beban rendah
continue operation at low load
c
menambah air umpan untuk menutup kebocoran
add feedwater to cover the leak
d
menutup indikator level agar alarm berhenti
close the level indicator so the alarm stops
Grade
Ungraded
Last Update
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By -
Question
3036
Jika terjadi flame failure pada burner, tindakan yang tepat adalah ...
If flame failure occurs at the burner, the proper action is to ...
Options
a
menghentikan suplai bahan bakar dan memeriksa penyebab kegagalan
stop the fuel supply and check the cause of the failure
b
menambah bahan bakar agar api muncul lagi
add more fuel so the flame reappears
c
membiarkan blower saja hingga api menyala sendiri
leave only the blower running until the flame relights by itself
d
menutup safety valve untuk menjaga tekanan
close the safety valve to maintain pressure
Grade
Ungraded
Last Update
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By -
Question
3037
Jika terjadi fuel oil contamination pada sistem burner, tindakan yang benar adalah ...
If fuel oil contamination occurs in the burner system, the correct action is to ...
Options
a
memeriksa dan membersihkan sistem bahan bakar sebelum operasi lanjut
inspect and clean the fuel system before continuing operation
b
langsung menaikkan temperatur bahan bakar setinggi mungkin
immediately raise the fuel temperature as high as possible
c
mengabaikannya selama nyala masih ada
ignore it as long as there is still a flame
d
mengganti semua burner tanpa pemeriksaan
replace all burners without inspection
Grade
Ungraded
Last Update
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By -
Question
3038
Jika terjadi penumpukan jelaga berlebihan atau excessive soot, tindakan yang tepat adalah ...
If excessive soot accumulation or excessive soot occurs, the proper action is to ...
Options
a
memeriksa penyebab pembakaran tidak sempurna dan membersihkannya
check the cause of incomplete combustion and clean it
b
menambah bahan bakar agar jelaga terbakar habis
add more fuel so the soot burns away
c
membiarkannya sampai soot fire terjadi lalu padam sendiri
leave it until a soot fire occurs and goes out by itself
d
menaikkan tekanan uap untuk membersihkan pipa
increase steam pressure to clean the tubes
Grade
Ungraded
Last Update
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By -
Question
3039
Jika terjadi flue gas leakage pada boiler, tindakan yang benar adalah ...
If flue gas leakage occurs in the boiler, the correct action is to ...
Options
a
memeriksa sumber kebocoran dan menangani bahaya sebelum operasi dilanjutkan
check the source of leakage and address the hazard before continuing operation
b
membiarkannya selama tekanan uap stabil
leave it as long as steam pressure is stable
c
menambah pembakaran agar gas bocor terdorong keluar
increase firing so the leaking gas is pushed out
d
menutup semua jalur air umpan
shut all feedwater lines
Grade
Ungraded
Last Update
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By -
Question
3040
Jika terjadi ignition failure pada burner, tindakan yang tepat adalah ...
If ignition failure occurs at the burner, the proper action is to ...
Options
a
menghentikan proses dan memeriksa sistem ignisi serta interlock
stop the process and inspect the ignition system and interlocks
b
langsung membuka bahan bakar lebih besar
immediately open the fuel wider
c
menyalakan ulang terus-menerus tanpa purging
restart repeatedly without purging
d
mematikan blower agar percikan lebih efektif
switch off the blower so the spark becomes more effective
Grade
Ungraded
Last Update
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By -