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ELECTROLYSIS AND ELECTROPLATING
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1) What is the output voltage if the centre tap of transformer is open circuited in a full wave rectifier circuit?
Zero voltage
Full rated output
Half of the rated output
One fourth of rated output
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Correct Answer: Zero voltage
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1) What is the output voltage if the centre tap of transformer is open circuited in a full wave rectifier circuit?
Zero voltage
Full rated output
Half of the rated output
One fourth of rated output
2) Which water will make scum, if soap is used?
Distilled water
Clean water
Hard water
Soft water
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Correct Answer: Hard water
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2) Which water will make scum, if soap is used?
Distilled water
Clean water
Hard water
Soft water
3) Which instrument is used to measure pH value quick and more accurately?
pH meter
Universal indicator
pH scale
Indicator
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Correct Answer: pH meter
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3) Which instrument is used to measure pH value quick and more accurately?
pH meter
Universal indicator
pH scale
Indicator
4) Which water gives lather with soap easily?
Clean water
Soft water
Dirty water
Hard water
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Correct Answer: Soft water
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4) Which water gives lather with soap easily?
Clean water
Soft water
Dirty water
Hard water
5) Which acid is used to make fizzy drinks?
Carboric acid
Citrus acid
Acetic acid
Citric acid
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Correct Answer: Carboric acid
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5) Which acid is used to make fizzy drinks?
Carboric acid
Citrus acid
Acetic acid
Citric acid
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