Top 80+ Solved Elements of Remote Sensing MCQ Questions Answer
Q. 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 will be less than that of b
b. height displacement of b will be less than that of a
c. height displacement of a and b is equal
d. height displacement of a and b will be towards each other
Q. Pick up the important characteristic of a target which facilitates its identification from thefollowing:
a. spectral variation
b. spatial variation
c. temporal variation
d. all of these
Q. The value of energy quantum for radiation of any frequency is proportional to:
a. the frequency
b. the reciprocal of the energy
c. the square of the frequency
d. the square root of the frequency
Q. Which one of the following geometric errors of satellite sensors is random?
a. scan skew
b. panoramic distortion
c. earth rotation
d. altitude variation
Q. Which one of the following frequency regions is a part of sun's radiation?
a. ultraviolet frequency region
b. infrared frequency region
c. radio frequency region
d. all of these
Q. The spectral region of the electromagnetic radiation which passes through the atmospherewithout much attenuation is known as:
a. ozone hole
b. atmospheric window
c. ozone window
d. black hole
Q. In GPS, receivers used are;
a. electronic clocks
b. atomic clocks
c. quartz clocks
d. mechanical clocks
Q. For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherencelength loch is:
a. 130 km
b. 230 km
c. 250 km
d. 500 km
Q. Which one of the following attributes is not associated with digital maps
a. colour
b. symbology
c. legends
d. south arrow
Q. The instruments which provide electromagnetic radiation of specified wave length or a band ofwave lengths to illuminate the earth surface are called:
a. sensors
b. passive sensors
c. active sensors
d. none of these
Q. The most widely used antenna in GPS is
a. parabolic antenna
b. microstrip antenna
c. horn antenna
d. slotted antenna
Q. Orbital radius of GPS satellites is approximately:
a. 15,200 km
b. 26,600 km
c. 18,400 km
d. 36,000 km