Electronic Circuits

161. Transmit time is the time taken by the electrons on holes to pass from

1. Emitter to collector
2. Collector to emitter
3. Base to emitter
4. Base to collector

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162. What application where one would most likely find a crystal oscillator?

1. Radio transmitter
2. AF generator
3. Radio receiver
4. Oscilloscope

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163. What capacitors are used in transistor amplifiers?

1. Paper
2. Electrolytic
3. Mica
4. Mylar

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164. What circuit increases the peak -to-peak voltage, current or power of a signal?

1. Power supply
2. Attenuator
3. Amplifier
4. Filter

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165. What class of operation has little use in general purpose amplifiers, but is used in high frequency oscillators?

1. Class A
2. Class AB
3. Class B
4. Class C

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166. What class of operation is used either where the signal needs to be cut in half, such as in pulse detector or noise detectors or where push-pull operation of two stages is required?

1. Class A
2. Class B
3. Class AB
4. Class C

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167. What class of operation is used for general amplification where no distortion can be tolerated?

1. Class A
2. Class B
3. Class AB
4. Class C

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168. What class of operation is used where a portion of a signal only is required, such as the synchronizing pulse separator of a television receiver?

1. Class A
2. Class B
3. Class AB
4. Class C

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169. What coupling provides maximum voltage gain?

1. RC
2. Direct
3. Transformer
4. Resistor

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170. What happens if the input capacitor of a transistor amplifier is short-circuited?

1. Biasing conditions will change
2. Transistor will be destroyed
3. Signal will not reach the base
4. Biasing will stabilize

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