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- Question
Pick up the correct statement from the following:
Options- A. For the same feature, the photograph taken from the satellite vertically above the aircraft, the height displacement is lesser than the the aerial photograph.
- B. The scale of the aerial photograph depends upon the scale of the topography
- C. The feature at the principal point has no height displacement.
- D. The scale of the topography of regions of higher elevation with the same flying height, is larger than that of the area of lower elevation.
- E. All of the above
- Correct Answer
- All of the above
- 1. According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on an other medium (refractive index m2);
Options- A. the angle of incidence is equal to the angle of refraction
- B. the angle of refraction (?r) is given by
- C. Both (a) and (b)
- D. neither (a) nor (b) Discuss
- 2. A dock:
Options- A. is a marine structure for berthing of vessels for loading and unloading cargo and passengers
- B. is an artificial basin for vessels where the variation of water in the shore does not affect the level of water
- C. is provided with a dock gate
- D. is provided with an arrangement to pump out water when required
- E. all the above. Discuss
- 3. Location of soundings by range and one angle is done by the surveyor
Options- A. on the shore
- B. on the boat
- C. on the shore or on the boat
- D. none of the above. Discuss
- 4. Pick up the correct statement from the following:
Options- A. The maritime structures should be designed to withstand wave motion of air
- B. The wind vortex results in conical depression in the air surface
- C. A tube of air rotating at hundreds of kilometres per hour forms a tornado
- D. all of the above. Discuss
- 5. The floating mooring does not require
Options- A. cables
- B. anchors
- C. bollard
- D. buoy. Discuss
- 6. Which one of the following statement is correct?
Options- A. Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
- B. The rate of transfer of radiant energy is called flux and is expressed in watts.
- C. The radiant energy which falls upon a surface, is termed as irradiance.
- D. The radiant energy which falls away from the surface is termed as radient exitance and is measured in Wm-2
- E. All of these Discuss
- 7. Pick up the correct statement from the following :
Options- A. Frequency is the number of wave crests passing a fixed point in one second
- B. Frequency of a wave is measured in Hertz (Hz)
- C. Amplitude of a wave is the height of its crust from the mid-point.
- D. The square of the amplitude is proportional to the energy transported by the wave.
- E. All of these Discuss
- 8. DGPS is based on the concept that bais errors in the position of locations in a given local area, are same if their distances are within
Options- A. 25 km
- B. 50 km
- C. 75 km
- D. 100 km
- E. 1250 km Discuss
- 9. Geodimeter is based on :
Options- A. propogation of modulated light waves
- B. propogation of infrared radiation
- C. the visible light as carrier with frequency of the order of 5 x 1014Hz
- D. high frequency radio waves. Discuss
- 10. Orbital radius of GPS satellites is approximately:
Options- A. 15,200 km
- B. 26,600 km
- C. 18,400 km
- D. 36,000 km Discuss
Elements of Remote Sensing problems
Search Results
Correct Answer: the angle of refraction (?r) is given by
Correct Answer: all the above.
Correct Answer: on the shore or on the boat
Correct Answer: all of the above.
Correct Answer: bollard
Correct Answer: All of these
Correct Answer: All of these
Correct Answer: 100 km
Correct Answer: propogation of modulated light waves
Correct Answer: 26,600 km
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