1) Which layer has the atmospheric conditions exactly opposite to that of standard atmosphere?
a. Depression layer
b. Regression layer
c. Inversion layer
d. Invasion layer
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Answer
Explanation
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ANSWER: Inversion layer
Explanation:
No explanation is available for this question!
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2) What is the direction of varying orientation of polarized surface wave at the earth surface in a wave tilt mechanism?
a. Horizontal
b. Vertical
c. Diagonal
d. Opposite
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Answer
Explanation
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ANSWER: Vertical
Explanation:
No explanation is available for this question!
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3) On which factors of earth does the magnitude of tilt angle depend in surface wave?
A. Permittivity
B. Conductivity
C. Resistivity
D. Reflectivity
a. A & B
b. C & D
c. A & C
d. B & D
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Answer
Explanation
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ANSWER: A & B
Explanation:
No explanation is available for this question!
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4) For avoiding ground losses, better is the surface conductivity, less is the __________
a. Attenuation
b. Phase velocity
c. Propagation constant
d. Tilt angle
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Answer
Explanation
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ANSWER: Attenuation
Explanation:
No explanation is available for this question!
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5) When an electromagnetic wave travels from transmitter to receiver, which factor/s affect/s the propagation level?
a. Curvature of earth
b. Roughness of earth
c. Magnetic field of earth
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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6) By which name/s is an ionospheric propagation, also known as?
a. Sea wave propagation
b. Ground wave propagation
c. Sky wave propagation
d. All of the above
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Answer
Explanation
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ANSWER: Sky wave propagation
Explanation:
No explanation is available for this question!
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7) After which phenomenon/phenomena do the waves arrive at the receiving antenna in ionospheric propagation?
a. Reflection or Scattering
b. Refraction
c. Defraction
d. All of the above
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Answer
Explanation
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ANSWER: Reflection or Scattering
Explanation:
No explanation is available for this question!
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8) Which type of ground wave travels over the earth surface by acquiring direct path through air from transmitting to receiving antennas?
a. Surface wave
b. Space wave
c. Both a & b
d. None of the above
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Answer
Explanation
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ANSWER: Space wave
Explanation:
No explanation is available for this question!
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9) If the path difference of two waves with single source traveling by different paths to arrive at the same point, is λ/2, what would be the phase difference between them?
a. β x (λ/2)
b. β / (λ/2)
c. β + (λ/2)
d. β - (λ/2)
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Answer
Explanation
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ANSWER: β x (λ/2)
Explanation:
No explanation is available for this question!
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10) Power density is basically termed as ________ power per unit area
a. Reflected
b. Refracted
c. Radiated
d. Diffracted
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Answer
Explanation
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ANSWER: Radiated
Explanation:
No explanation is available for this question!
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