Communications [GATE (Graduate Aptitude Test in Engineering) Electronics & CE (EC)]: Questions 45 - 49 of 153
Choose Programs:
📹 Video Course 2024 (170 Lectures [86 hrs : 44 mins]): Offline Support
Rs. 530.00 -OR-
1 Month Validity (Multiple Devices)
Preview All LecturesDetails
🎓 Study Material (400 Notes): 2024-2025 Syllabus
Rs. 450.00 -OR-
3 Year Validity (Multiple Devices)
Topic-wise Notes & SampleDetails
🎯 356 Numeric, 1246 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Rs. 500.00 -OR-
3 Year Validity (Multiple Devices)
CoverageDetailsSample Explanation
Help me Choose & Register (Watch Video) Already Subscribed?
Question 45
Appeared in Year: 2013
Question MCQ▾
Following are the modulation/multiplexing techniques: (September)
1. AM
2. FM
3. CDMA
4. WDM
The correct sequence of carrier frequency in decreasing order is
Choices
Choice (4) | Response | |
---|---|---|
a. | 4,3, 1,2 | |
b. | 4,3, 2,1 | |
c. | 3,4, 2,1 | |
d. | 1,2, 3,4 |
Question 46
Appeared in Year: 2013
Question MCQ▾
Which data communication method is used for sending data in both directions at the same time? (September)
Choices
Choice (4) | Response | |
---|---|---|
a. | Simplex | |
b. | Full duplex | |
c. | Super duplex | |
d. | Half duplex |
Question 47
Appeared in Year: 2014
Question MCQ▾
Which of the following techniques are used to: (June)
1. Armstrong
2. Foster-Sealy Discriminator
3. Balanced Modulator
4. Reactance Modulator
Which one of the following is true?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1 and 2 | |
b. | 1 and 3 | |
c. | 1 and 4 | |
d. | 1,2 and 3 |
Question 48
Appeared in Year: 2013
Question MCQ▾
Demodulation is a process (September)
Choices
Choice (4) | Response | |
---|---|---|
a. | Of removing the sidebands | |
b. | Of filtering the carrier | |
c. | Similar to modulation | |
d. | Done at the transmitter |
Question 49
Appeared in Year: 2013
Question MCQ▾
The highest data rate in fiber optic communication occurs in (September)
Choices
Choice (4) | Response | |
---|---|---|
a. | Co-axial cable | |
b. | Graded-index fiber | |
c. | Multimode fiber | |
d. | Single-mode fiber |