Remote sensing questions 1- Remote sensing uses which of the following waves in its procedure? a) Electric field b) Sonar waves c) Gamma- rays d) Electro-magnetic waves 2- The relation between velocity, wavelength and frequency can be given as _________ a) λ = c / r b) λ = c / f c) λ = c / h d) λ = h*c / f 3- Which of the following is not a principle of remote sensing? a) Interaction of energy with satellite b) Electromagnetic energy c) Electro-magnetic spectrum d) Interaction of energy with atmosphere 4- Which among the following waves is having less wavelength range? a) 0.03mm b) 0.03nm c) 0.03m d) 0.03km 5- In visible region, the blue light is having a wavelength range of __________ a) 0.42-0.52 micrometer b) 0.24-0.52 micrometer c) 0.42-0.92 micrometer d) 0.22-0.32 micrometer View Answer 6- Which of the following field is used by the EM waves? a) Solar field b) Polarized field c) Electric field d) Micro field 7- Which of the following is not a classification of scattering principle? a) Faraday scattering b) Rayleigh scattering c) Mie scattering d) Non-selective scattering View Answer 8- Which of the following can act as an example for air-borne platform? a) LISS-III b) Dakota c) MOS d) LISS-II 9- Polar orbiting satellites are generally placed at an altitude range of __________ a) 7-15km b) 7000-15000km c) 700-1500km d) 70-150km View Answer 10- Which of the following doesn’t indicate a stage in remote sensing? a) Reflectance of energy b) Transmission of energy c) Energy source d) Absorption of energy 11- The electromagnetic wave travelling from source to the object is having same wavelength. a) True b) False View Answer 12- Which of the following indicates the functioning of a sensor? a) Transmits energy b) Absorbs wavelength c) Sensitive to wavelength d) Reflects energy 13- Among the following, which indicates the correct set of classification of data? a) Analog, digital b) Digital, binary c) Binary, analog d) Vector, raster 14- Which type of remote sensing uses its own source of electromagnetic energy? a) Passive b) Active c) Satellite d) Orbital 15- The correct sequence of transmission of electromagnetic waves in remote sensing system can be given as ___________ a) Energy source, transmission of signal, propagation of signal b) Transmission of signal, propagation of signal, energy source c) Propagation of signal, transmission of signal, energy source d) Energy source, propagation of energy, transmission of signal 16- Signal can be generated by ____________ a) Interaction of EM waves with surface b) Interaction of EM waves with energy source c) Interaction of EM waves with atmosphere d) Interaction of EM waves with sensor 17- Which among the following is the first Indian remote sensing satellite? a) Quick Bird b) SPOT c) IRS-1A d) MOS 18- Among the following, the correct set of remote sensing classification can be given as __________ a) Active, orbital b) Active, passive c) Passive, orbital d) Orbital, satellite 19- The data obtained by the process of remote sensing needs great knowledge to understand it. a) True b) False 20- Remote sensing uses which of the following waves in its procedure? a) Electric field b) Sonar waves c) Gamma- rays d) Electro-magnetic waves 21- Which of the following is not a principle of remote sensing? a) Interaction of energy with satellite b) Electromagnetic energy c) Electro-magnetic spectrum d) Interaction of energy with atmosphere 22- Which among the following waves is having less wavelength range? a) 0.03mm b) 0.03nm c) 0.03m d) 0.03km 23- In visible region, the blue light is having a wavelengthrange of __________ a) 0.42-0.52 micrometer b) 0.24-0.52 micrometer c) 0.42-0.92 micrometer d) 0.22-0.32 micrometer 24- Which of the following field is used by the EM waves? a) Solar field b) Polarized field c) Electric field d) Micro field 25- Which of the following is not a classification of scattering principle? a) Faraday scattering b) Rayleigh scattering c) Mie scattering d) Non-selective scattering 26- Which of the following can act as an example for air-borne platform? a) LISS-III b) Dakota c) MOS d) LISS-II 27- Polar orbiting satellites are generally placed at an altitude range of __________ a) 7-15km b) 7000-15000km c) 700-1500km d) 70-150km 28- Which of the following has the maximum value in an electric or magnetic field? a) wavelength b) Focal length c) Frequency d) Amplitude 29- In EM waves, electric field is not used. a) False b) True 30- If the intensity of wavelength decreases, the energy released will ___________ a) Increase b) Decrease c) Remain same d) Zero 31- In an EM field, which filed is placed horizontal? a) Gamma rays b) Sonar field c) Electric field d) Magnetic field 32- The wavelength sensed in remote sensing are __________ a) Nano meters and giga meters range b) Nano meters and deci meters range c) Nano meters and micro meters range d) Nano meters and meters range 33- In the following figure, X represents___________ a) Length b) Time period c) Frequency d) Wave length 34- Energy of the discrete particles can be given by_______ a) Photons b) Protoplasm c) Electrons d) Neutrons 35- Which among the following is having more wavelengths? a) X-rays b) Cosmic waves c) Radio waves d) Gamma rays 36- Which among the following wave is not employed in case of remote sensing? a) X-ray b) Visible ray c) Thermal IR d) Radio waves 37- Optical mechanical scanner is used in which type of electromagnetic waves? a) X-rays b) Cosmic waves c) Radio waves d) Thermal IR . 38- Radio waves are having the longest wavelength among all the electromagnetic waves. a) False b) True 39- Gamma rays are having a wavelength of _________ a) Zero b) Greater than 0.03nm c) Less than 0.03nm d) Equal to 0.03nm 40- Which of the following waves can be used in case of remote sensing? a) UV rays b) X-rays c) Gamma rays d) Visible rays View Answer 41- Which of the following indicates the correct set of combination in radio waves? a) Shorter wavelength – high frequency b) Longer wavelength – less frequency c) Shorter wavelength – less frequency d) Longer wavelength – high frequency View Answer 42- How much wavelength is reflected back by the earth surface from the absorbed sun radiation? a) 0.5meter b) 0.5 micrometer c) 0.5 centimeter d) 0.5 decimeter View Answer 43- EM waves varies from ______ to ________ a) Meters to nano-meters b) Meters to micro-meters c) Nano to micro-meters d) Centimeters to nano-meters View Answer . 44- Diameter of sun can be given as ____________ a) 1.39 * 107 km b) 1.9 * 106 km c) 1.39 * 106 km d) 1.39 * 1016 km View Answer 45- The energy radiated from sun in visible region will be around ____________ a) 43% b) 45% c) 47% d) 50% View Answer . 46- The value of solar constant can be given as __________ a) 1637 W / m2 b) 1367 W / m2 c) 136 W / m2 d) 3167 W / m2 View Answer 47- Temperature on the sun is around ______________ a) 575 – 600 K b) 7550 – 8000 K c) 5570 – 6000 K d) 5750 – 6000 K View Answer 48- Around how much percentage, the incident radiant flux can be absorbed by the materials present on earth? a) 48% b) 37% c) 42% d) 50% View Answer 49- Which among the following is not a phenomenon in case of interaction of EM waves on earth surface? a) Reflection b) Absorption c) Transmission d) Refraction View Answer 50- Which of the following can be changed while interaction of EM wave with a surface? a) Intensity b) Diffraction c) Wave length d) Direction View Answer 51- Which of the following indicates a volume phenomenon? a) Refraction b) Reflection c) Transmission d) Diffraction View Answer . 52- Strength of signal doesn’t depend upon which of the following factors? a) Energy flux b) Dwell time c) Altitude d) Reflection View Answer 53- Which of the following indicates the correct set of bands operated in LISS- III satellite? a) Visible ray, near IR b) Near IR, radio wave c) Radio wave, near IR d) Far IR, near IR View Answer 54- Energy flux may affect which of the following? a) Lens b) Strength of the signal c) Aperture d) Declination View Answer 55- Which of the following can merge the imagery of LISS-III and PAN? a) IRS 1B b) IRS 1A c) IRS 1C d) IRS multi sensor View Answer . 56- Which among the following indicates the correct expansion of WiFS? a) Wide Field Sensor b) Wireless Fidelity Sensor c) Wide Fidelity Sensor d) Wireless Field Sensor View Answer 57- IRS P3 satellite uses which of the following sensors? a) PAN b) LISS-III c) MOS d) LISS-II View Answer 58- PAN sensor uses two band operators. a) True b) False View Answer 59- While mapping land use and land cover, which scale is recommended? a) 1: 25000 b) 1: 50000 c) 1: 250000 d) 1: 25 View Answer . 60- The sensor used in the digital elevation model can identify contour heights greater than _____ a) 5 m b) 30 m c) 20 m d) 10 m View Answer . 61- IRS 1A and 1B satellites can carry which of the following sensors? a) LISS-IV b) LISS-III c) LISS-I d) LISS-V View Answer 62- Which of the following indicates the correct set of M’s used in the case of GIS? a) Manipulating, monitoring, mapping, modeling b) Measuring, manipulating, mapping, modeling c) Measuring, monitoring, marketing, modeling d) Measuring, monitoring, mapping, modeling View Answer
