| 1. | For the transmission of same power ? | |
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DC line requires more copper than an AC line
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AC line requires more copper than a DC line
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Both AC as well as DC line need same copper
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None of these
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View Answer
Discuss in Forum
Report Question| 2. | The charging current in cables ? | |
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lags the voltage by 90°
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lags the voltage by 180°
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leads the voltage by 90°
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leads the voltage by 180°
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| 3. | Absorbed moisture contents affect the dielectric strength ? | |
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directly
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indirectly
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does not effect
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none of these
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| 4. | What is the types of insulator used at dead ends and on straight lines as suspension type for voltages 3.3 kV and above ? | |
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Disc insulators
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Stay insulators
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Strain insulators
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Pin insulators
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| 5. | Fusing factor of fuse is always ? | |
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more than 1
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less than 1
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infinity
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zero
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| 6. | The function of capacitor connected across the fluorescent lamp is ? | |
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improve power factor
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Minimize current usage
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Minimize power consumption
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Increase the voltage
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| 7. | The another name of neutral earthing is ? | |
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equipment earthing
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system earthing
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solid earthing
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direct earthing
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| 8. | The size of neutral wire as compared to that of line wire should be in case of single phase supply ? | |
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equal
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one and a half
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half
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double
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| 9. | Which of the following methods is used for laying of underground cables ? | |
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Direct laying
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Draw in system
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Solid system
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All option are correct
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| 10. | Interlocking is not possible in which type of fuse ? | |
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Rewireable fuse
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High rupturing capacity fuse
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Aerial fuse
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kit kat fuse
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