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Electroplater
BASIC ELECTRONICS
Set 5
Set 5
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Q4711
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What is the output voltage if the centre tap of transformer is open circuited in a full wave rectifier circuit?
A
Zero voltage
B
Full rated output
C
Half of the rated output
D
One fourth of rated output
Q4712
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Which water will make scum, if soap is used?
A
Distilled water
B
Clean water
C
Hard water
D
Soft water
Q4713
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Which instrument is used to measure pH value quick and more accurately?
A
pH meter
B
Universal indicator
C
pH scale
D
Indicator
Q4714
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Which water gives lather with soap easily?
A
Clean water
B
Soft water
C
Dirty water
D
Hard water
Q4715
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Which acid is used to make fizzy drinks?
A
Carboric acid
B
Citrus acid
C
Acetic acid
D
Citric acid
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