|
| 1 | When a parallel bank exists in a series path, both resistors have the same voltage across them. |
 | A) | True |
| B) | False |
|
| 2 | There can be any number of parallel strings and more than two series resistances in a string. |
| A) | True |
| B) | False |
|
| 3 | There can be only two parallel resistances in a bank and only one bank in series. |
| A) | True |
| B) | False |
|
| 4 | In a series-parallel circuit, any individual series R has its own IR drop that must be less than the total VT. |
| A) | True |
| B) | False |
|
| 5 | A high resolution DMM cannot accurately determine the value of an unknown resistor. |
| A) | True |
| B) | False |
|
| 6 | A Wheatstone bridge cannot accurately determine the value of an unknown resistor. |
| A) | True |
| B) | False |
|
| 7 | With a negative temperature coefficient (NTC) thermistor, as temperature goes up, resistance goes up. |
| A) | True |
| B) | False |
|
| 8 | A short within a series-parallel circuit does not necessarily mean that the circuit will definitely draw excessive current from the voltage source. |
| A) | True |
| B) | False |
|
| 9 | A short circuit has practically infinite resistance. |
| A) | True |
| B) | False |
|
| 10 | Any circuit that combines both series and parallel connections is a circuit. |
|
| 11 | When series resistors are connected in parallel, the series resistors form a . |
|
| 12 | When a parallel branch contains series resistors, both resistors have the same . |
|
| 13 | The sum of the branch currents for all parallel strings equals the current. |
|
| 14 | Components that are in one current path without any branch points are in . |
|
| 15 | A very sensitive zero-centered current meter is called a(n) . |
|
| 16 | A series-parallel circuit is also called a circuit. |
|
| 17 | A variety of sensors are used in circuits for detecting changes in pressure, flow, light, etc. |
|
| 18 | How can a technician determine which parallel resistive branch has a shorted component? |
| A) | Measure branch currents and the one with all the current has the short |
| B) | Measure the applied voltage. |
| C) | Measure total resistance |
| D) | Use an oscilloscope to measure voltage |
|
| 19 | If one 120 V, 100 W bulb was connected across a 240 V source, |
| A) | excessive current could burn out filaments |
| B) | the bulb will be dimly lit |
| C) | the bulb will operate normally |
| D) | the bulb will be brightly lit |
|
| 20 | Branch current equals the voltage applied across the branch |
| A) | multiplied by the total resistance in the branch |
| B) | divided by the total resistance in the branch |
| C) | squared and then added to the total branch resistance |
| D) | divided by an individual branch resistor |
|
| 21 | How many parallel strings can there be in a series-parallel circuit? |
| A) | one |
| B) | two |
| C) | three |
| D) | any number of |
|
| 22 | When a parallel bank exists in a series path, both resistors have the same |
| A) | voltage |
| B) | current |
| C) | resistance |
| D) | power |
|
| 23 | To find the resistance of an entire series-parallel circuit, |
| A) | combine the parallel resistances in each bank and add the series resistance |
| B) | combine the series resistances in each bank and add the parallel resistances |
| C) | measure the total current and divide the applied voltage into it |
| D) | measure the total power and multiply it by applied voltage |
|
| 24 | Any individual series R has its own IR drop that must be |
| A) | more than the total VT |
| B) | less than the total VT |
| C) | equal to VT |
| D) | more than 10 volts |
|
| 25 | A variety of sensors are used in bridge circuits for detecting changes in |
| A) | pressure |
| B) | voltage |
| C) | color |
| D) | current |