A radio receiver has____________of amplification?

Related Mcqs:

1. A current amplification of 2000 is a gain of_________________?

   A. 3 db
   B. 66 db
   C. 20 db
   D. 200 db

2. For faithful amplification by a transistor circuit, the value of VCE should______________for silicon transistor?

   A. Not fall below 1 V
   B. Be zero
   C. Be 0.2 V
   D. None of the above

3. For proper amplification by a transistor circuit, the operating point should be located at the_____________ of the d.c. load line?

   A. The end point
   B. Middle
   C. The maximum current point
   D. None of the above

4. For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?

   A. Be zero
   B. Be 0.01 V
   C. Not fall below 0.7 V
   D. Be between 0 V and 0.1 V

5. For germanium transistor amplifier, VCE should_______________for faithful amplification?

   A. Be zero
   B. Be 0.2 V
   C. Not fall below 0.7 V
   D. None of the above

6. The radio wave picked up by the receiving antenna is amplified about _________________ times to have reasonable sound output?

   A. 1000
   B. A million
   C. 100
   D. 10000

7. Transformer coupling provides high efficiency because___________?

   A. Collector voltage is stepped up
   B. resistance is low
   C. collector voltage is stepped down
   D. none of the above

8. An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?

   A. 8 db
   B. 6 db
   C. 5 db
   D. 4 db

9. In obtaining the frequency response curve of an amplifier, the______________?

   A. Amplifier level output is kept constant
   B. Amplifier frequency is held constant
   C. Generator frequency is held constant
   D. Generator output level is held constant

10. The upper or lower cut off frequency is also called______________frequency?

    A. Resonant
    B. Sideband
    C. 3 db
    D. None of the above