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Civil Engineering - Elements of Remote Sensing

Exercise : Elements of Remote Sensing - Section 1
31.
A and B are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?
Height displacement of A will be less than that of B
Height displacement of B will be less than that of A
Height displacement of A and B is equal
Height displacement of A and B will be towards each other
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Remote sensing techniques makes use of the properties of-----emitted, reflected or diffracted by the sensed objects:
electric waves
soundwaves
electromagnetic waves
wind waves
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Which one of the following parameters is accurate for DGPS.
Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station
Positional accuracies ~ 2 - 5m if rover is less than 2-5 fm from the reference station
Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station
Positional accuracies ~ 5 - 10 m if rover is less than 25 km
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The most widely used antenna in GPS is
Parabolid antenna
Microstrip antenna
Horn antenna
Slotted antenna
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which one of the following statements regarding remote sensing is correct.
The interaction of the electromagnetic radiation with the target
The emission of electromagnetic radiation from the target
both (a) and (b)
Neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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