Transmitter MCQ : Here you will find MCQ Questions related to "Transmitter" in Analog Communication. These Transmitter MCQ Questions Will help you to improve your Analog Communication knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
Question 1
A transmitter and a receiver combined in one unit is called a?
A. XMTR
B. transceiver
C. wireless networking
D. digital signal
View Answer
Ans : B
Explanation: A transmitter and a receiver combined in one unit is called a transceiver.
Question 2
The transmitter combines the information signal to be carried with the radio frequency signal which generates the radio waves, which is called the?
A. carrier signal
B. modulation
C. amplitude modulation
D. frequency modulation
View Answer
Ans : A
Explanation: The transmitter combines the information signal to be carried with the radio frequency signal which generates the radio waves, which is called the carrier signal. This process is called modulation
Question 3
A _______ amplifier to increase the power of the signal, to increase the range of the radio waves.
A. amplitude modulation
B. crystal oscillator
C. electronic oscillator
D. radio frequency
View Answer
Ans : D
Explanation: A radio frequency (RF) amplifier to increase the power of the signal, to increase the range of the radio waves.
Question 4
The first primitive radio transmitters (called spark gap transmitters) were built by German physicist Heinrich Hertz in ?
A. 1885
B. 1886
C. 1887
D. 1888
View Answer
Ans : C
Explanation: The first primitive radio transmitters (called spark gap transmitters) were built by German physicist Heinrich Hertz in 1887 during his pioneering investigations of radio waves.
Question 5
In an FM (frequency modulation) transmitter the frequency of the carrier is varied by the modulation signal.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : A
Explanation: True, In an FM (frequency modulation) transmitter the frequency of the carrier is varied by the modulation signal.
Question 6
An electronic oscillator circuit do not generate the radio frequency signal.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : B
Explanation: False, An electronic oscillator circuit to generate the radio frequency signal.
Question 7
The remote mounting feature of two-wire transmitter near the sensor reduces the effects of
A. Noise
B. Signal Degradation
C. Both A and B
D. None of the above
View Answer
Ans : C
Explanation: The remote mounting feature of two-wire transmitter near the sensor reduces the effects of noise and signal degradation.
Question 8
Modulation is done in ________
A. Receiver
B. Transducer
C. Between transmitter and radio receiver
D. Transmitter
View Answer
Ans : D
Explanation: Transmitter modulates the signal to be transmitted, by varying one of the properties of a carrier signal with respect to the instantaneous amplitude of the message signal. This process is known as modulation. Receiver demodulates the modulated signal to extract the message signal.
Question 9
In TV transmission, picture signal is ________ modulated.
A. DSB-SC
B. VSB
C. SSB-SC
D. Pulse
View Answer
Ans : B
Explanation: All analog television systems use vestigial sideband modulation, which is a form of amplitude modulation, for transmission. In VSB, one sideband is fully transmitted and another sideband is partially removed, which further reduces the bandwidth of transmitted signal. This enables narrower channels to be used.
Question 10
In TV transmission, sound signal is ________ modulated.
A. Phase
B. Pulse
C. Frequency
D. Amplitude
View Answer
Ans : C
Explanation: Amplitude Modulation is invariably used for picture transmission while frequency modulation is generally used for transmission of sound due to its inherent advantages over amplitude modulation. It is not suitable for transmitting videos due to its large bandwidth.