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What is the expected Output frequency for the circuit shown below?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image054.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"> (5.0K)</a>]]> |
| | A) | 15.93 MHz |
| | B) | 11.41 MHz |
| | C) | 8.64 MHz |
| | D) | 4.70 MHz |
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| 2.
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What is the expected output frequency for the circuit shown below?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image055.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"> (5.0K)</a>]]> |
| | A) | 2685 Hz |
| | B) | 1838 Hz |
| | C) | 1678 Hz |
| | D) | 1382 Hz |
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| 3.
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Identify the circuit shown below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image056.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"> (4.0K)</a>]]> |
| | A) | Wien bridge oscillator |
| | B) | Hartley oscillator |
| | C) | Colpitts oscillator |
| | D) | phase-shift oscillator |
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| 4.
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What is the expected output frequency for the circuit shown below?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image057.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"> (4.0K)</a>]]> |
| | A) | 7651 Hz |
| | B) | 4672 Hz |
| | C) | 3385 Hz |
| | D) | 2209 Hz |
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| 5.
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The components shown in red below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image058.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"> (4.0K)</a>]]> |
| | A) | provide automatic gain control |
| | B) | determine the amplitude of the Output |
| | C) | form a lead-lag network |
| | D) | form a tank circuit |
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| 6.
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Calculate the output frequency for the circuit shown below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image059.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"> (4.0K)</a>]]> |
| | A) | 2781 Hz |
| | B) | 1592 Hz |
| | C) | 1286 Hz |
| | D) | 1004 Hz |
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| 7.
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What is the function of the lamp in the circuit shown below?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image060.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"> (4.0K)</a>]]> |
| | A) | it increases the negative feedback so output clipping is eliminated |
| | B) | it reduces the op-amp gain after the oscillations begin |
| | C) | its resistance goes up as it heats up |
| | D) | all of the above |
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| 8.
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What is the expected Output waveform for the circuit shown below?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image061.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"> (4.0K)</a>]]> |
| | A) | exponential sawtooth |
| | B) | rectangular |
| | C) | triangle |
| | D) | sine |
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| 9.
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Identify the circuit shown below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image062.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"> (5.0K)</a>]]> |
| | A) | Wien bridge oscillator |
| | B) | Hartley oscillator |
| | C) | Colpitts oscillator |
| | D) | phase-shift oscillator |
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| 10.
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Identify the circuit shown below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073106941/443736/image063.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"> (5.0K)</a>]]> |
| | A) | Wien bridge oscillator |
| | B) | Hartley oscillator |
| | C) | Colpitts oscillator |
| | D) | phase-shift oscillator |
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