The signal generator generally used in the laboratories is___________oscillator?

Related Mcqs:

1. The crystal oscillator frequency is very stable due to___________of the crystal?

   A. Rigidity
   B. Vibrations
   C. Low Q
   D. High Q

2. In a phase shift oscillator, the frequency determining elements are _______________?

   A. L and C
   B. R, L and C
   C. R and C
   D. None of the above

3. In Colpitt’s oscillator, feedback is obtained___________?

   A. A. By magnetic induction
   B. By a tickler coil
   C. From the centre of split capacitors
   D. None of the above

4. Quartz crystal is most commonly used in crystal oscillators because:____________?

   A. It has superior electrical properties
   B. It is easily available
   C. It is quite inexpensive
   D. None of the above

5. A Wien bridge oscillator uses___________feedback?

   A. Only positive
   B. Only negative
   C. Both positive and negative
   D. None of the above

6. A second condition for oscillations is____________?

   A. A gain of 1 around the feedback loop
   B. No gain around the feedback loop
   C. The attention of the feedback circuit must be one-third
   D. The feedback circuit must be capacitive

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

   A. Remains the same
   B. Decreases
   C. Increases
   D. Insufficient data

8. The Q of the crystal is of the order of____________?

   A. 100
   B. 1000
   C. 50
   D. More than 10,000

9. An oscillator employs___________feedback?

   A. Positive
   B. Negative
   C. Neither positive nor negative
   D. Data insufficient

10. In an LC transistor oscillator, the active device is___________?

    A. LC tank circuit
    B. Biasing circuit
    C. Transistor
    D. None of the above