Elements Of Remote Sensing MCQ Questions & Answers | Civil Engineering

A. Reflectance

B. Reflectance factor

C. Albedo

D. None of these

A. Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station

B. Positional accuracies ~ 2 - 5 m if rover is less than 2-5 km from the reference station

C. Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station

D. Positional accuracies ~ 5 - 10 m if rover is less than 25 km

A. Altitude variation

B. Altitude

C. Orbit drift

D. All of these

A. $${{\text{C}}_{\text{m}}} = \frac{1}{{\varepsilon \mu }}$$

B. $${{\text{C}}_{\text{m}}} = \frac{1}{{\sqrt 8 \mu }}$$

C. $${{\text{C}}_{\text{m}}} = \frac{5}{{\sqrt \varepsilon \mu }}$$

D. None of these

A. 26,000 km

B. 30,000 km

C. 36,000 km

D. 44,000 km

A. The nominal altitude is about 20,200 km

B. The inclination of axis satellite is 55°

C. The satellite transmits two L band signals (L₁ with 1575.42 MHz and L₂ with 1276.6 MHz)

D. All of these

A. 130 km

B. 230 km

C. 250 km

D. 500 km

A. Electric waves

B. Sound waves

C. Electromagnetic waves

D. Wind waves

A. Is a diffuse emitter

B. Absorbs all the radiations of every wave lengths

C. Emits power of every wave length

D. All the above

A. Solar zenith angle

B. Azimuth angle

C. Look angle

D. All of these