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Wireman
DC GENERATOR
Set 8
Set 8
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Q13773
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What is the cause for the fault, that brush makes chattering noise?
A
Over loading
B
Insufficient brush tension
C
Excessive brush pressure
D
Insufficient brush spring pressure
Q13774
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What is the cause for the fault that bearing over heating in DC generator?
A
Unbalanced armature
B
Foreign material in air gap
C
More current in armature
D
Incorrect grade of bearing grease
Q13775
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What is the cause for the fault that heavy sparking in light loads in DC generator?
A
Oily commutator surface
B
Defective alignment
C
Defective bearing
D
Wrong alignment
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