Question: An LC oscillator cannot be used to produce ____________frequencies?

• 1. High
• 2. Audio
• 3. Very low
• 4. Very high

Question: In an LC transistor oscillator, the active device is___________?

• 1. LC tank circuit
• 2. Biasing circuit
• 3. Transistor
• 4. None of the above

Question: An oscillator employs___________feedback?

• 1. Positive
• 2. Negative
• 3. Neither positive nor negative
• 4. Data insufficient

Question: In a phase shift oscillator, we use____________RC sections?

• 1. Two
• 2. Three
• 3. Four
• 4. None of the above

Question: The application where one would most likely find a crystal oscillator is____________?

• 1. Radio receiver
• 2. Radio transmitter
• 3. AF sweep generator
• 4. None of the above

Question: In a certain oscillator Av = 50. The attention of the feedback circuit must be___________?

• 1. 1
• 2. 01
• 3. 10
• 4. 02

Question: ____________is a fixed frequency oscillator?

• 1. Phase-shift oscillator
• 2. Hartely-oscillator
• 3. Colpitt’s oscillator
• 4. Crystal oscillator

Question: An important limitation of a crystal oscillator is____________?

• 1. Its low output
• 2. Its high Q
• 3. Less availability of quartz crystal
• 4. Its high output

Question: The Q of the crystal is of the order of____________?

• 1. 100
• 2. 1000
• 3. 50
• 4. More than 10,000

Question: In a Wien-bridge oscillator, if the resistances in the positive feedback circuit are decreased, the frequency____________?

• 1. Remains the same
• 2. Decreases
• 3. Increases
• 4. Insufficient data