Civil Engineering MCQs

A. Fresnel reflection
B. Fresnel refraction
C. Snell’s law
D. None of these

A. 15,200 km
B. 26,600 km
C. 18,400 km
D. 36,000 km

A. Sensors
B. Passive sensors
C. Active sensors
D. None of these

A. Ozone hole
D. None of these

A. Increases with salinity
B. Increases with temperature
C. Decreases with salinity
D. Decreases with temperature

A. Passive remote sensing
B. Active remote sensing
C. Neutral remote sensing
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 – 5m if rover is less than 2-5 fm 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. The off-nadir resolution is degraded
B. The ground distance swept by the senor, ifov is proportional to sec2 of scan measured from the nadir
C. The details towards the edge of the scan get compressed
D. All of these

A. 26,000 km
B. 30,000 km
C. 36,000 km
D. 44,000 km

A. Electric waves
B. Sound waves
C. Electromagnetic waves
D. Wind waves