WIRE JOINTS AND SOLDERING - Quiz

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

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

5) Which acid is used to make fizzy drinks?

Carboric acid Citrus acid Acetic acid Citric acid