Introduction of Remote Sensing and GIS – MCQ

Introduction of Remote Sensing and GIS – MCQ

1. Error in a single horizontal distance in stadia surveying must be?

a) Less than 1 in 1000.
b) Less than 1 in 500.
c) Less than 1 in 100.
d) None of these.

View Answer

a) Less than 1 in 1000.

Error in a single horizontal distance in stadia surveying must be less than 1 in 1000.

2. The spectral range of ‘ChlorophyII Absorption Band’ is?

a) 1.9 μm – 2.7 μm.
b) 1.4 μm – 1.9 μm.
c) 0.45 μm – 0.67 μm.
d) 0.29 μm – 0.38 μm.

View Answer

c) 0.45 μm – 0.67 μm

The spectral range of ‘ChlorophyII Absorption Band’ is 0.45 μm – 0.67 μm (or, 450 nm -670 nm).

3. The spatial resolution of Landsat 8 OLI(Operational Land Imager) sensor is?

a) 1 m.
b) 5 m.
c) 30 m.
d) 60 m.

View Answer

c) 30 m.

The spatial resolution of Landsat 8 OLI(Operational Land Imager) sensor is 30 m.

4. In standard FCC image urbun area appear as

a) Red.
b) Steel grey.
c) Blue.
d) Brown.

View Answer

b) Steel grey.

In standard FCC image urbun area appear as steel grey.

5. The sum of the three sides in a spherical triangle is less than?

a) π
b) 2π
c) 3π
d) 4π

View Answer

a) π.

The sum of the three sides in a spherical triangle is less than π.

6. 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) Latent sensors.
d) None of these.

View Answer

a) Active sensors.

7. The refractive index of the water

a) Increase with pressure.
b) Increase with salinity.
c) Increase with temperature.
d) Increase with pressure and temperature.

View Answer

b) Increase with salinity.