CBSE Class 12 Communication Systems Multiple Choice Questions with Answers. MCQ Questions Class 12 Communication Systems with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Communication Systems MCQs with Answers to know their preparation level.
Students who are searching for NCERT MCQ Questions for Class 12 Communication Systems with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Communication Systems with Answers. You can also verify your answers from our provided MCQ Class 12 Communication Systems with Answers. So, ace up your preparation with MCQ of Class 12 Physics Examinations.
MCQ Questions Class 12 Communication Systems with Answers - Set - 3
Question 1:
Name the man who was first to place his foot on the moon and in which year:
(a) Neil Armstrong, 1969
(b) James Van A lien, 1971
(c) Leonov, 1965
(d) None of these
Correct Answer – (A)
Question 2 :
The modulation index in amplitude modulation is:
(a) Always zero
(b) Between 0 and 1
(c) Between 1 and ∞
(d) None of these
Correct Answer – (C)
Question 3 :
An antenna is:
(a) Inductive
(b) Capacitive
(c) Resistive
(d) A transformer
Correct Answer – (A)
Question 4 :
Which of the following is not transducer?
(a) Loudspeaker
(b) Amplifier
(c) Microphone
(d) All
Correct Answer – (B)
Question 5 :
The wavelength of a wave of frequency 10 kHz is:
(a) 30 m
(b) 300 m
(c) 30 km
(d) 300 km
Correct Answer – (C)
MCQ Questions Class 12 Communication Systems with Answers
Question 6 :
The output of a digital computer is an example of:
(a) digital signal
(b) analog signal
(c) both (a) and (b)
(d) neither (a) nor (b)
Correct Answer – (A)
Question 7 :
Broadcasting antenna are generally:
(a) Ommi directional type
(b) Vertical type
(c) Horizontal type
(d) None
Correct Answer – (B)
Question 8 :
The space waves which are affected seriously by atmospheric conditions are:
(a) MF
(b) HUF
(c) VHF
(d) UHF
Correct Answer – (D)
Question 9 :
The area served by an antenna of height 100 m is:
(a) 109m²
(b) 4 × 109 m²
(c) 6 × 109m²
(d) 8 × 1010m²
Correct Answer – (B)
Question 10 :
The audio frequencies range from:
(a) 20 Hz to 20.000 kHz
(b) 20 Hz to 20 kHz
(c) 20 kHz to 20.000 kHz
(d) None of these
Correct Answer – (B)
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