Communication Engineering MCQs with answers Page - 52

Here, you will find a collection of MCQ questions on Communication Engineering. Go through these questions to enhance your preparation for upcoming examinations and interviews.

To check the correct answer, simply click the View Answer button provided for each question.

Have your own questions to contribute? Click the button below to share your MCQs with others!

+ Add Question

A

Admin • 802.91K Points
Coach

Q. A 1 kW carrier is Amplitude Modulated to a depth of 60%. The total power in the modulated carrier is ?

  • (A) 1 kW
  • (B) 1.06 kW
  • (C) 1.6 kW
  • (D) 1.18 kW

A

Admin • 802.91K Points
Coach

Q. A carrier is modulated by two modulating waves A and B having modulation index of 0.6 and 0.8 respectively. The overall modulation index is ?

  • (A) 1.0
  • (B) 0.7
  • (C) 0.2
  • (D) 1.4

A

Admin • 802.91K Points
Coach

Q. An AM signal with a carrier of 6KW produces a modulation of 100% what will be the power produced in each side band ?

  • (A) 1KW
  • (B) 0.15KW
  • (C) 15KW
  • (D) 1.5KW

A

Admin • 802.91K Points
Coach

Q. The modulation index of an amplitude modulated wave is changed from 0 to 1. The transmitted power is ?

  • (A) Doubled
  • (B) Halved
  • (C) Increased by 50 percent
  • (D) unchanged

A

Admin • 802.91K Points
Coach

Q. In amplitude modulated system if the total power is 600W and the power in the carrier is 400W, the modulation index ?

  • (A) 0.5
  • (B) 0.75
  • (C) 0.9
  • (D) 1

A

Admin • 802.91K Points
Coach

Q. The ratio of modulating power to total power at 100% modulation will be ?

  • (A) 2:3
  • (B) 3:1
  • (C) 1:3
  • (D) 3:2

A

Admin • 802.91K Points
Coach

Q. Before transmission message signal is modulated with carrier signal for : ?

  • (A) Decreasing the height of transmitting antenna
  • (B) Increasing the amplitude of message signal
  • (C) Decreasing the amplitude of message signal
  • (D) Increasing the height of transmitting antenna

Add MCQ in this Category

If you want to share an MCQ question in this category, it's a great idea! It will be helpful for many other students using this website.

Share Your MCQ

Browse Categories

Click on category to learn MCQs of that category.