Civil Engineering Mcqs

The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called____________________?

(A) Passive remote sensing
(B) Active remote sensing
(C) Neutral remote sensing
(D) None of these

Submitted By :Ali Uppal

The refractive index of the ocean water_______________?

(A) Increases with salinity
(B) Increases with temperature
(C) Decreases with salinity
(D) Decreases with temperature

Submitted By :Ali Uppal

The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called________________?

(A) Sensors
(B) Passive sensors
(C) Active sensors
(D) None of these

Submitted By :Ali Uppal

Orbital radius of GPS satellites is approximately ___________________?

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

Submitted By :Ali Uppal

“An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media”. This phenomenon is known as___________________?

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

Submitted By :Ali Uppal

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

Submitted By :Ali Uppal

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

Submitted By :Ali Uppal

The basic requirement of any sensor system is___________________?

(A) Radiometric resolution
(B) Spatial resolution
(C) Spectral resolution
(D) All of these

Submitted By :Ali Uppal

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

Submitted By :Ali Uppal

What is the type of annuity where the first payment does not begin until some later date in the cash flow ?

(A) Ordinary annuity
(B) Perpetuity
(C) Annuity due
(D) Deferred annuity

Submitted By :Ali Uppal

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