Communications-Analog Communications [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 1 - 5 of 50
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Question 1
Appeared in Year: 2017
Question MCQ▾
The ability of a receiver to discriminate against the interfering signals is known as: (November paper 2)
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Distortion | |
b. | Selectivity | |
c. | Sensitivity | |
d. | Fidelity | |
Question 2
Question MCQ▾
A wideband amplifier has a precise amplification factor ________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Neutral | |
b. | Less than the wide range | |
c. | Over the wide range | |
d. | Equal to the wide range | |
Question 3
Appeared in Year: 2018
Question MCQ▾
Which of the following statement is correct? (July)
Choices
| Choice (4) | Response | |
|---|---|---|
a. | MF radio frequency waves are called long waves and HF are called short waves. | |
b. | VLF and LF radio frequency waves are called long waves while HF waves are called short waves. | |
c. | LF radio waves are called long waves and VHF are called short waves | |
d. | ELF radio waves are called long waves and HF are called short waves. | |
Question 4
Appeared in Year: 2018
Question MCQ▾
The simple one dimensional diffusion process can be given by: (July)
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 5
Appeared in Year: 2018
Question MCQ▾
Consider the following systems:
1) Satellite
2) Conventional public address system
3) Conventional radio receiver
4) Laser detector
Arrange the above systems in the order of their increasing order of operational frequency: (July)
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 2) , 3) , 1) , 4) | |
b. | 2) , 3) , 4) , 1) | |
c. | 3) , 2) , 1) , 4) | |
d. | 1) , 2) , 3) , 4) | |