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Communication Systems MCQ Questions & Answers | ECE

Learn Communication Systems MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Communication Systems MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-6 section-1

Each section contains 100 MCQs on Communication Systems .
51
When the length of antenna is a whole wavelength
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Answer: Option A
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52
Under ordinary circumstances, impulse noise can be reduced in
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Answer: Option A
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53
Which of the following is used to generate PDM?
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Answer: Option B
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54
A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. The output of the samples so obtained would be
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Answer: Option B
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55
A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is
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Answer: Option B
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56
For a low level AM system, the amplifiers modulated stage must be
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Answer: Option A
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57
In case of low level amplitude modulation system, the amplifiers following the modulated stage must be
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Answer: Option B
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58
Commercial Frequency deviation of FM is
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Answer: Option B
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59
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
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Answer: Option B
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60
In any system, excessive bandwidth is avoided because:
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Answer: Option A
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