1) For swept frequency measurements, the input impedance of the mismatched transmission line would vary with frequency as the electrical length of the transmission line would
a. Decrease with frequency
b. Remains same with change in frequency
c. Increase with frequency
d. Either (a) or (b)
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Answer
Explanation
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ANSWER: Increase with frequency
Explanation:
No explanation is available for this question!
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2) The output power of the cascaded amplifier / attenuator system can be determined using
a. Actual gain of amplifier
b. Actual gain of amplifier and attenuator
c. Gain in dB of amplifier and attenuator
d. Actual gain of attenuator
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Answer
Explanation
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ANSWER: Actual gain of amplifier and attenuator
Explanation:
No explanation is available for this question!
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3) LISN is a device used to measure conducted emissions. LISN stands for
a. Line integrated stabilization network
b. Line impedance stabilization network
c. Line integrated stored network
d. Laser integrated stabilization networking
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Answer
Explanation
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ANSWER: Line impedance stabilization network
Explanation:
No explanation is available for this question!
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4) In EMC signal, the source delivers maximum power to the input of transmission line when the transmission line input impedance
a. Is equal to the source resistance
b. Greater than the source resistance
c. Smaller than the source resistance
d. None of these
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Answer
Explanation
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ANSWER: Is equal to the source resistance
Explanation:
No explanation is available for this question!
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5) In radiative coupling, the emitter radiation field
a. Decays as 1 / R, where R is the separation distance between the emitter and the receptor
b. Decays as R, where R is the separation distance between the emitter and the receptor
c. Decays as 1 / 2 R, where R is the separation distance between the emitter and the receptor
d. Decays as 2R, where R is the separation distance between the emitter and the receptor
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Answer
Explanation
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ANSWER: Decays as 1 / R, where R is the separation distance between the emitter and the receptor
Explanation:
No explanation is available for this question!
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6) The effects of EMI can be reduced by
a. Suppressing emissions
b. Reducing the efficiency of the coupling path
c. Reducing the susceptibility of the receptor
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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7) The opposite of susceptibility is
a. Immunity
b. Emission
c. Interference
d. Electromagnetic compatibility
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Answer
Explanation
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ANSWER: Immunity
Explanation:
No explanation is available for this question!
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8) The ability of an electronic system to function properly in its intended electromagnetic environment and should not be a source of pollution to that electromagnetic environment is known as
a. Susceptibility
b. Emission
c. Interference
d. Electromagnetic compatibility
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Answer
Explanation
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ANSWER: Electromagnetic compatibility
Explanation:
No explanation is available for this question!
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9) The man made noise sources is / are
a. Motors
b. Switches, radio interferences
c. Computers, digital electronics
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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10) Any electrical signal present in a circuit other than the desired signal is known as
a. Noise
b. Distortion
c. Interference
d. All of these
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Answer
Explanation
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ANSWER: Noise
Explanation:
No explanation is available for this question!
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