Chapter 2 PROTECTION DEVICES AND ELECTRICAL SAFETY MCQs

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1. . The fuse is best defined as a:





2. . Fuses can serve up to a current of:





3. . H.R.C. fuses has:





4. . Cartridge type fuse can be used up to a voltage of:





5. . Miniature circuit breaker is a small:





6. . Fuses work only:





7. . Using a high current fuse in a low current appliance is very:





8. . Circuit breakers work:





9. . A simple enclosed length of wire that has a low melting point is known as:





10. . A relay is used to:





11. . Basic relay connection requirement is that the relay must operate for:





12. . If electric wires and appliances are overheated due to high voltage of electric current, they can:





13. . Do not use appliances, if:





14. . A short thin piece of wire which is heated up and melt by the flowing of electric current in it, is called:





15. . Electricity flows through any:





16. . If you are the only conductor around, the electricity will flow through:





17. . A three-point starter is suitable for:





18. . The disadvantage of starting an induction motor with a star-delta starter is that:





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