MCQ in Modulation Part 15 – Answers

(Last Updated On: April 18, 2020)

MCQ in Modulation Part 15 | ECE Board Exam

Below are the answers key for the Multiple Choice Questions in Modulation Part 15.

701. frequency deviators

702. 10 kHz

703. it is relatively free of spurious frequencies

704. PM modulator

705. is not rejected by the IF tuned circuits

706. PM demodulator

707. FM modulator

708. 48 kHz

709. FM demodulator

710. blocking

711. the padder capacitor

712. J.R. Carson

713. 72 percent

714. to allow adequate frequency coverage without switching

715. lower complexity and cost

716. narrowband FM

717. quasi-stationary

718. it is unaffected by AGC derived from a nearby transmission

719. J.R. Carson

720. single-sideband, full carrier

721. excessive use of spectrum space

722. Carson’s rule

723. deviation ratio

724. limiter

725. capture effect

726. adjacent channel interference

727. high-pass filter

728. class C

729. high frequencies

730. low-pass filter

731. differentiator

732. integrator

733. high frequencies

734. crystal oscillators are inherently stable and therefore more difficult for them to achieve high phase deviations and modulation indices

735. any of these

736. heterodyning

737. high-pass filter

738. low-pass filter

739. AFC

740. frequency discriminator

741. capture effect

742. 48 kHz

743. 2.122 kHz

744. less noise

745. preselector

746. IF amplifier

747. varactor diode

748. dielectric

749. discriminator

750. limiter

Questions and Answers in Modulation Series

Following is the list of multiple choice questions in this brand new series:

MCQ in Modulation
PART 1: MCQ from Number 1 – 50                        Answer key: PART 1
PART 2: MCQ from Number 51 – 100                   Answer key: PART 2
PART 3: MCQ from Number 101 – 150                 Answer key: PART 3
PART 4: MCQ from Number 151 – 200                 Answer key: PART 4
PART 5: MCQ from Number 201 – 250                 Answer key: PART 5
PART 6: MCQ from Number 251 – 300                 Answer key: PART 6
PART 7: MCQ from Number 301 – 350                 Answer key: PART 7
PART 8: MCQ from Number 351 – 400                 Answer key: PART 8
PART 9: MCQ from Number 401 – 450                 Answer key: PART 9
PART 10: MCQ from Number 451 – 500                 Answer key: PART 10

Complete List of MCQ in Communications Engineering per topic

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