Steam Cert 2nd Grade Bahagian B Paper I
Mei 2017
Soalan 1
Discuss dangerous boiler condition and reason
a) Low water
b) Furnace explosion
c) Poor water quality
Soalan 2
3 factors lead to tube failure in WTB
4 sebab steam starvation in superheater tube
Soalan 3
Kenapa blowdown valve to be open slowly
Kemungkinan yg berlaku jika water level move up & down Di sight glass
Advantage & disadvantage high turndown burners
Soalan 4
Terangkan
Priming carryover
Foaming carryover
How to prevent priming & foaming
Soalan 5
Describe:
Combustion
Control of air supply
Mixing of air & fuel
Temperature required for combustion
Time required for combustion
Soalan 6
Explain water hammer & bagaimana berlaku
5 kesan water hammer
Soalan 7
Jelaskan ttg steam condenser
Terangkan 2 jenis steam condenser
Soalan 8
Describe:
Positive displacement pump
Centrifugal pump
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