Radio: Telecommunication Engineering Test! Trivia Questions Quiz

15 Questions | By Srijitac | Last updated: Mar 22, 2022 | Total Attempts: 1925

Questions

Settings

Create your own Quiz

Radio: Telecommunication Engineering Test! Trivia Questions Quiz - Quiz

Questions and Answers

1.

The maximum power in AM,when modulation index is
- A.
  
  0
- B.
  
  0.5
- C.
  
  0.7
- D.
  
  1
2.

AFC is
- A.
  
  Audio frequency control
- B.
  
  Automatic frequency control
- C.
  
  Amplitude frequency control
- D.
  
  None of these
3.

Which one of the following is the type of ‘super heterodyning’?
- A.
  
  Radio transmitter
- B.
  
  TV
- C.
  
  Radio receiver
- D.
  
  Radar
4.

An earth station transmitter consists of
- A.
  
  RF to IF down converter
- B.
  
  IF to RF converter
- C.
  
  Either (a)&(b)
- D.
  
  None of these
5.

An earth station receiver consists of
- A.
  
  RF to IF down converter
- B.
  
  IFto RF converter
- C.
  
  Either (a)&(b)
- D.
  
  None of these
6.

In optical communication, carrier is
- A.
  
  Electromagnetic waves in optical frequency
- B.
  
  Electromagnetic waves in maximum frequency
- C.
  
  Electromagnetic waves in minimum frequency
- D.
  
  None of these
7.

Optical detector is
- A.
  
  diode
- B.
  
  PIN photo diode
- C.
  
  Transistor
- D.
  
  none of these
8.

Video signals in TV are
- A.
  
  Amplitude modulated
- B.
  
  Phase modulated
- C.
  
  Frequency modulated
- D.
  
  None of these
9.

In FM modulation ,when the modulation index increases, transmitted power is
- A.
  
  Constant
- B.
  
  Increased
- C.
  
  Decreased
- D.
  
  None of these
10.

In AM modulation ,when the modulation index increases, transmitted power is
- A.
  
  constant
- B.
  
  increased
- C.
  
  decreased
- D.
  
  none of these
11.

The bandwidth of the FM signal is_______than AM signal.
- A.
  
  Lesser
- B.
  
  Either lesser or larger
- C.
  
  Larger
- D.
  
  None of these
12.

Messages travel from transmitter to receiver with help of
- A.
  
  Transmitter
- B.
  
  Receiver
- C.
  
  Channel
- D.
  
  antennas
13.

In order to reduce interference, the signal should be
- A.
  
  Amplified
- B.
  
  Multiplied
- C.
  
  Demodulated
- D.
  
  Modulated
14.

Non electric signal is converted into electrical signal by
- A.
  
  transducer
- B.
  
  Receiver
- C.
  
  Line
- D.
  
  None of these
15.

The frequency range of 1GHZ to 30GHZ are referred as
- A.
  
  Sound waves
- B.
  
  Micro waves
- C.
  
  Mini waves
- D.
  
  None of these