| 1. |
The name “ammeter” comes from the fact that it is a meter used to measure current (in amperes), and thus is called an ampere METER, or AMMETER. |
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True |
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False |
| 2. |
A meter movement converts _____________ energy into ________________ energy. |
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Electrical to mechanical |
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Mechanical to electrical |
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Heat to mechanical |
| 3. |
A galvanometer is an instrument that measures small amounts of current and is based on the electromagnetic principle. |
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True |
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False |
| 4. |
What is the purpose of a rectifier in a meter? |
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A rectifier changes alternating current to pulsating direct current and allows a dc meter to measure ac. |
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A rectifier change pulsating direct current to alternating current and allows an ac meter to measure dc. |
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None |
| 5. |
Figure1-14 represents a ________________. |
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Meter damping system |
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Voltmeter |
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Ammeter |
| 6. |
The two types of circuit protection devices discussed in chapter-2 are ___________ and ___________. |
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Fuses and circuit breakers |
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Voltmeters and Ammeters |
| 7. |
Post-type fuse holders are not made for cartridge fuses. |
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True |
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False |
| 8. |
What are three methods for determining if a fuse is open? |
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Visual inspection, Indicators & Meters |
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Voltmeter, Indicators & Meters |
| 9. |
Unlike a fuse, a circuit breaker is reusable. |
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True |
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False |
| 10. |
Circuit breakers have _______ main components, as shown in figure 2-16. |
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Five |
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Four |
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Three |
| 11. |
The TRIP ELEMENT is the part of the circuit breaker that senses the overload condition and causes the circuit breaker to trip or break the circuit. |
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True |
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False |
| 12. |
A magnetic trip element circuit breaker uses an electromagnet in series with the circuit load as in figure 2-20. |
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True |
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False |
| 13. |
What type of circuit breaker is used on a multimeter? |
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Push button |
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Push-pull circuit breaker |
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Both of the above |
| 14. |
PLUG-TYPE FUSES are used in low-voltage, low-current circuits. This type of fuse is rapidly being replaced by the circuit breaker. |
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True |
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False |
| 15. |
___________________ are available in a wide range of physical sizes and voltage and current ratings. This type fuse is the most commonly used fuse. |
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Cartridge Fuses |
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Plug type Fuses |
| 16. |
An_______________ switch is a switch that is controlled by a mechanical or electrical device. |
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Automatic |
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Manual |
| 17. |
Which of the following electrical quantities is measured by a wattmeter? |
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Power |
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Energy |
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Voltage |
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Current |
| 18. |
Which of the following electrical quantities is measured by a watt hour meter? |
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Power |
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Energy |
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Voltage |
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Current |
| 19. |
The RELAY is a device that acts upon the same fundamental principle as the solenoid. |
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True |
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False |
| 20. |
Circuit Control Devices are used to apply or remove power and to select a function or circuit within a device.. |
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True |
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False |
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