Civil Engineering MCQs

2965 MCQs  (Page 224 of 297)

In GPS, receivers used are___________________?
A. Electronic clocks
B. Atomic clocks
C. Quartz clocks
D. Mechanical clocks
The most widely used antenna in GPS is_______________?
A. Parabolic antenna
B. Microstrip antenna
C. Horn antenna
D. Slotted antenna
Spatial variation in horizontal and vertical directions is caused due to_________________?
A. Physical weathering of rocks
B. Chemical weathering of rocks
C. Biological weathering of rocks
D. All of these
The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target_________________?
A. Reduces the contrast of the image and also its sharpness
B. Increases the contrast of the image but reduces the sharpness
C. Increases both the contrast and sharpness
D. Reduces the contrast but increases the sharpness
The basic requirement of any sensor system is___________________?
A. Radiometric resolution
B. Spatial resolution
C. Spectral resolution
D. All of these
A passive sensor uses ________________?
A. Sun as the source of energy
B. Flash light as a source of energ
C. Its own source of energy
D. None of these
Who coined the term, ‘Remote sensing_______________?
A. Evelyn l. pruitt, a geographer
B. Gaspard felix tournachon, a french scientist
C. Wilbur wright, an italian scientist
D. None of these