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| 1.
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An N-channel depletion mode MOSFET can be turned off by making VGS: |
| | A) | positive |
| | B) | zero |
| | C) | negative |
| | D) | any of the above: it depends on the part number |
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| 2.
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When ohmmeter testing BJTs, which two junctions should show diode behavior? |
| | A) | CB and BE |
| | B) | CE and BE |
| | C) | CE and CB |
| | D) | all of the above |
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| 3.
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What is (hFE) for the transistor shown below?:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image023.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>]]> |
| | A) | 111 |
| | B) | 100 |
| | C) | 20 |
| | D) | none of the above |
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| 4.
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The collector lead for the only NPN transistor shown below is designated as:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image024.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | A) | D |
| | B) | C |
| | C) | B |
| | D) | A |
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| 5.
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What is the emitter current for the circuit shown below?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image025.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>]]> |
| | A) | 112.11 mA |
| | B) | 109.89 mA |
| | C) | 100 mA |
| | D) | none of the above |
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| 6.
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The schematic symbol shown below is for a(n):
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image026.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> |
| | A) | N-channel enhancement mode MOSFET |
| | B) | N-channel MOSFET |
| | C) | N-channel JFET |
| | D) | none of the above |
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| 7.
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The schematic symbols shown below are for:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image027.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | A) | MOSFETs |
| | B) | JFETs |
| | C) | UJTs |
| | D) | BJTs |
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| 8.
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When ohmmeter testing BJTs, which junction should show close to zero ohms in both directions? |
| | A) | CB |
| | B) | BE |
| | C) | CE |
| | D) | None of the above. |
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| 9.
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The leads shown below with no letter designations are:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image028.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | A) | emitters |
| | B) | drains |
| | C) | bases |
| | D) | gates |
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| 10.
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When a BJT switching transistor is turned on, its base current will be: |
| | A) | large enough to insure very low CE resistance |
| | B) | small |
| | C) | very small |
| | D) | zero |
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