Chapter 5 R.F. AMPLIFIER MCQs 13 min Score: 0 Attempted: 0/13 Subscribe 1. . RF amplifier is designed for _________ frequency amplification (A) Radio (B) Audio (C) Intermediate (D) VideoShow All Answers 2. . The radio frequency band is _________ (A) 30 KHz to 300 GHz (B) 300 GHz to 300 KHz (C) 3 MHz to 300 MHz (D) 300 MHz to 3 KHzShow All Answers 3. . In a tuned radio frequency amplifier, collector load is _________ (A) RC circuit (B) RL circuit (C) LC parallel circuit (D) LC series circuitShow All Answers 4. . The double tuned amplifier has good _________ (A) Selectivity (B) Sensitivity (C) Fidelity (D) All of aboveShow All Answers 5. . In grounded base radio frequency amplifier _________ (A) Output is taken from base (B) Input is applied on base (C) Input is applied on collector (D) Output is taken from collectorShow All Answers 6. . Class C amplifiers cannot be used in _________ frequencies (A) Intermediate (B) Radio (C) Audio (D) All of theseShow All Answers 7. . Which type of feedback is used to get stability in an amplifier (A) Regenerative (B) Degenerative (C) Positive (D) Both a and cShow All Answers 8. . Which type of feedback is used in oscillator (A) Positive (B) Negative (C) Regenerative (D) Both a and cShow All Answers 9. . Tuned radio frequency power amplifiers are used in _________ (A) Radio transmitter (B) TV receivers (C) Communication receivers (D) All of the aboveShow All Answers 10. . Positive feedback is also called _________ (A) Regenerative (B) Degenerative (C) Series (D) ParallelShow All Answers 11. . The effects of degenerative feedback on amplifier is _________ (A) Increased bandwidth (B) Less sensitivity (C) Less distortion (D) All of aboveShow All Answers 12. . Which feedback is used to minimize the distortion and noise in transmitter (A) Positive (B) Negative (C) Degenerative (D) Both b and cShow All Answers 13. . An amplifier must also be _________ (A) Power converter (B) Sine wave converter (C) Square wave converter (D) All of the aboveShow All Answers
