Elements of Remote Sensing MCQs | Elements of Remote Sensing Short Questions and Answers

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
41 Geodimeter is based on:
A High frequency radio waves
B The visible light as carrier with frequency of the order of 5 × 1014 Hz
C Propagation of modulated light waves
D Propagation of infrared radiation

Answer: High frequency radio waves
42 The code based GPS receivers are generally used for:
A Trans movement
B Vehicle tracking
C Land navigation
D All of these

Answer: All of these
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
43 Pick up the correct statement from the following:
A The splitting of colours of white light by passing through a prism is caused due to dispersion
B The refractive index of a medium varies according to the wavelength of the radiation
C The variation of the refractive index with wave length, is called dispersion
D All of these

Answer: All of these
44 While propagating through homogeneous, isotropic media,
A Directions of both the fields are orthogonal
B Both the fields are at right angles to the direction of propagation
C Both A. and B.
D Neither A. nor B.

Answer: Both A. and B.
45 The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called:
A Spatial variation
B Temporal variation
C Spectral variation
D None of these

Answer: Spatial variation
46 Which one of the following errors is produced by platform characteristics of the sensor?
A Orbit drift
B Altitude
C Altitude variation
D All of these

Answer: All of these
47 Leaf reflectance depends primarily on:
A Equivalent water content
B Internal cell structure
C The pigments
D All of these

Answer: All of these
48 Critical angle of electromagnetic radiation takes place if
A Angle of refraction is equal to 90°
B Angle of incidence is greater than the angle of refraction
C Angle of incidence is equal to angle of refraction
D Angle of incidence is equal to 90°

Answer: Angle of refraction is equal to 90°
49 Earth observations from a satellite platform provide:
A Repetitive observations of the same area with intervals of a few minutes to a few weeks
B Constant solar zenith angles and similar illumination conditions
C Synoptic view of a large area
D All of these

Answer: All of these
50 Which one of the following residual biases involves the GPS accuracy?
A Signal propagation biases due to the sphere and troposphere propagation
B Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
C Receiver -dependent biases due to clock stability with line
D All the above

Answer: All the above
51 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?
A Height displacement of A and B is equal
B Height displacement of A and B will be towards each other
C Height displacement of B will be less than that of A
D Height displacement of A will be less than that of B

Answer: Height displacement of A will be less than that of B
52 Pick up the important characteristic of a target which facilitates its identification from the following:
A Temporal variation
B Spatial variation
C Spectral variation
D All of these

Answer: All of these
53 The value of energy quantum for radiation of any frequency is proportional to:
A The reciprocal of the energy
B The square of the frequency
C The square root of the frequency
D The frequency

Answer: The frequency
54 Which one of the following statements is correct?
A A map is a collection of stored, analysed data, its stored information is suitability used in making decisions
B The information system is the chain of operations
C The function of an information system is to improve one s ability to make decisions
D All the above

Answer: All the above
55 Which one of the following geometric errors of satellite sensors is random?
A Altitude variation
B Earth rotation
C Scan skew
D Panoramic distortion

Answer: Altitude variation
56 Which one of the following frequency regions is a part of sun’s radiation?
A Radio frequency region
B Ultraviolet frequency region
C Infrared frequency region
D All of these

Answer: All of these
57 The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:
A Atmospheric window
B Ozone window
C Ozone hole
D Black hole

Answer: Atmospheric window
58 In GPS, receivers used are;
A Quartz clocks
B Atomic clocks
C Electronic clocks
D Mechanical clocks

Answer: Quartz clocks
59 Which one of the following attributes is not associated with digital maps
A South arrow
B Colour
C Legends
D Symbology

Answer: South arrow
60 The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called:
A Active sensors
B Passive sensors
C Sensors
D None of these

Answer: Active sensors

Random GK Questions

Q. In which part of the eye lies the pigment that decides the colour of the eyes of a person?
Q. Which kind of power accounts for the largest share of power generation in India ?
Q. The production of excess pigment in the skin is stimulated mainly by :
Q. Conrad Discontinuity is found
Q. First successful heart transplantation was done by
Q. Fluidity of lava is determined by amount of
Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series