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Information and Communication Technology System Maintenance (ICTSM)
INDUCTANCE CAPACITANCE AND RESONANCE
Set 2
Set 2
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Q7139
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What is the unit of reluctance?
A
Weber / metre<sup>2</sup>
B
Weber / metre
C
Ampere turns / Weber
D
Ampere turns / metre<sup>2</sup>
Q7140
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Which method of magnetization is used to make commercial purpose permanent magnets?
A
Induction method
B
Single touch method
C
Double touch method
D
Divided touch method
Q7141
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What is the composition of steel and silicon steel in transformer core?
A
Steel 97% and Silicon 3%
B
Steel 95% and Silicon 5%
C
Steel 93% and Silicon 7%
D
Steel 90% and Silicon 10%
Q7142
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What is the purpose of using laminated core in transformer?
A
Reduce copper loss
B
Reduce hysteresis loss
C
Reduce mechanical loss
D
Reduce eddy current loss
Q7143
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How power rating is specified for transformers?
A
Watts (W)
B
Voltage (V)
C
Volt ampere (VA)
D
Horse power (HP)
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