Elements of Remote Sensing MCQ Practice Questions (Civil) Set 1

GPS has been widely recognized as accurate, fast and cost-effective method for the following:


Options are :

  • Collection of the geographic coordinate data used in GIS
  • For movement of navigation
  • All of these
  • For determination of precise orbit and altitude of low earth orbiting satellites

Answer :All of these

Hydraulics MCQ Practice Questions (Civil Engineering) Set 4

Pick up the correct statement from to following:


Options are :

  • All of these
  • Superposition of the coherent waves produce interference
  • For complete temporal coherence, the waves must be mono chromatic
  • With 0 phase difference, the constructive interference takes place
  • For spatial coherence, the phase difference between two points in space is constant with time

Answer :All of these

The semi-infinite snow albedo is proportional to the square root of the grain radius:


Options are :

  • In the 0.2 to 0.4 ?m wave length region
  • In the 0.8 to 1.2 ?m wave length
  • None of these
  • In the 0.4 to 0.8 ?m wave length region

Answer :In the 0.4 to 0.8 ?m wave length region

In sun-light water poor in phyto plank tons appears:


Options are :

  • Yellow
  • Green
  • Red
  • Deep blue

Answer :Deep blue

Concrete Technology MCQ Practice Questions (Civil Eng) Set 6

Remote sensing techniques are being usefully employed for the purpose of:


Options are :

  • Protection of the environment
  • Land use
  • Improving natural resource management
  • All of these

Answer :All of these

Pick up the correct statement from the following:


Options are :

  • Water molecules and salt-ions in the ocean scatter the lower wave length more
  • An increase in the back scattering coefficient with shorter wave length gives a deep blue colour for clear oceanic water
  • All of these
  • The ratio of the upwelling irradiance just below the surface and downwelling irradiance just above the surface is called reflectance ratio

Answer :All of these

For perfect coherent radiation, which one of the following statement is correct ?


Options are :

  • The directions of motion of both waves are parallel
  • Both the waves must have single frequencies
  • All of these
  • The waves must be collimated

Answer :All of these

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1

"All bodies at temperatures above absolute zero degree emit electromagnetic radiation at different wave length", is known as:


Options are :

  • Planktan's law
  • Lambert's cosine law
  • None of these
  • Plank's law

Answer :Plank's law

The maximum absorption of solar radiation due to ozone occurs at wave lengths:


Options are :

  • Shorter than 0.3 ?m
  • Greater than 0.3 ?m
  • None of these
  • Shorter than 0.2 ?m

Answer :Shorter than 0.3 ?m

With the increase of turbidity, the muddy water appears brown due to the shift of the upward radiance peak towards:


Options are :

  • Yellow
  • Blue
  • Green
  • Red

Answer :Red

Concrete Technology MCQ Practice Questions (Civil Eng) Set 7

In which part of the reflective optical infrared region, the effect of multiple leaves in vegetation canopy is maximum ?


Options are :

  • In all the above region
  • The short wave IR (1.3 - 2.7 ?m) region
  • The visible (0.4 - 0.7 ?m) region
  • The near-IR (0.7 - 1.3 ?m) region

Answer :The near-IR (0.7 - 1.3 ?m) region

Phytoplanktons:


Options are :

  • Are microscopic plants
  • All of these
  • Convert solar energy, dissolved carbon and nitrogen into organic biomass
  • Are the first link in all the aquatic and marine food chains

Answer :All of these

Which one of the following statements is correct ?


Options are :

  • Higher the dielectric constant of a medium, the poorer is its electric conductivity
  • All of these
  • Dielectric constant is a pure number and has no dimensions
  • The dielectric constant of pure water is 80
  • The ratio of the permitivity of a medium and the free space, is called relative permitivity

Answer :All of these

Theory of Structures MCQ Practice Questions (Civil Eng) Set 3

Pick up the incorrect statement regarding the optical infrared region of the electromagnetic spectrum from the following :


Options are :

  • Microwave infrared region, 3.0 ? m - 8.0 ?m
  • Short wave infrared region, 0.7 ? m - 1.5 ?m
  • Near infrared region, 1.5 ? m - 3.0 ?m
  • Visible region, 0.4 ?m - 0.7 ?m

Answer :Short wave infrared region, 0.7 ? m - 1.5 ?m

Pick up the correct statement from the following:


Options are :

  • All of these
  • The wave length of gamma rays is 10^(-10) m
  • The visible length occupies a small portion of the electromagntic spectrum extending roughly from 0.4 ? m to 0.7?m wave length
  • The wave length of radio rays is 10^(6) m

Answer :All of these

The information system is the chain of the following operations:


1. Collection of data

2. Planning the observations

3. Analysis of data

4. Decision making process

Which one of the chains is correct ?


Options are :

  • 2, 1, 3, 4
  • 3, 2, 1, 4
  • 1, 3, 4, 2
  • 4, 1, 2, 3

Answer :2, 1, 3, 4

Theory of Structures MCQ Practice Questions (Civil Eng) Set 6

Electromagnetic waves are characterised by:


Options are :

  • Direction of travel and plane of polarisation
  • All of these
  • Frequency
  • Intensity
  • Wave length

Answer :All of these

Pick up the correct statement from the following:


Options are :

  • Electromagnetic wave is composed of electric and magnetic fields
  • If the electromagnetic wave moves in the z-direction, its electric vector remains in the XY plane along any direction
  • Polarization defines the orientation of the fields
  • Electric and magnetic fields of electromagnetic wave remain mutually orthogonal and transverse to the direction of propagation
  • All of these

Answer :All of these

Which one of the following statements is correct to remote sensing ?


Options are :

  • The surface from which emergent radiance is constant in all directions is called Lambertian surface
  • All of these
  • The ratio of the reflected flux to incident flux is called reflectance which varies fron 0 to 1
  • The basic property used to identify objects, is called signature

Answer :All of these

Hydraulics MCQ Practice Questions (Civil Engineering) Set 10

For accurate position fix, the three satellites:


Options are :

  • Must be such that one satellite is overhead of the receiver and other two widely separated
  • Must be along a common arc
  • Must be in vertical line above the receiver
  • Must be widely separated and well distributed

Answer :Must be widely separated and well distributed

Which one of the following frequencies is a GPS ?


Options are :

  • L1 with frequency 1520 MHz
  • L1 with frequency 1227.6 MHz
  • L1 with frequency 1280.43 Hz
  • L1 with frequency 1575.42 MHz

Answer :L1 with frequency 1575.42 MHz

Fresh and pure snow reflectance:


Options are :

  • Is very high in visible region
  • All of these
  • Falls off steeply in the near-IR region
  • Remains low for longer wave lengths

Answer :All of these

Concrete Technology MCQ Practice Questions (Civil Eng) Set 8

The emission of electrons from a metal plate exposed to light depends on the:


Options are :

  • None of these
  • Intensity of the light
  • Frequency of light

Answer :Intensity of the light Frequency of light

In sun light, water rich in phytoplanktons appears:


Options are :

  • Brown
  • Green
  • Blue
  • Red

Answer :Green

The range measurements in GPS are made with:


Options are :

  • 2 L - band frequencies
  • 2 C - band frequencies
  • 3 L - band frequencies
  • 3 C - band frequencies

Answer :2 L - band frequencies

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 5

Pick up the correct statement from the following:


Options are :

  • The first aerial photography from an aerocraft was made by Willeur Wright in 1909 in Italy
  • All of these
  • Balloons were used as stable platform for aerial photography in 1903
  • Photography was developed in 1826

Answer :All of these

The leaf area index (LAI) is:


Options are :

  • None of these
  • Two sided leaf area per -unit area of the ground
  • One sided leaf area per unit area of the ground
  • The average of the two sided area per unit area of the ground

Answer :One sided leaf area per unit area of the ground

Which one of the following statements is correct ?


Options are :

  • The PN code determines the time taken by the receiver to reach the receiver which is converted into distance
  • All of these
  • The two L band signals are modulated by the Pseudorandom binary codes (PN)
  • Each satellite of the GPS system transmits two L band signals
  • The GPS receiver reads the specific code of the satellite

Answer :All of these

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

Which one of the following statements is not correct ?


Options are :

  • GIS technology is the same as traditional mapping
  • GIS technology contains analytic capabilities for overlaying maps
  • GIS technology is a tool box for processing maps and fundamental concepts for spatial measurement
  • GIS technology is capable to study the environmental surrondings

Answer :GIS technology is the same as traditional mapping

Snow consists of:


Options are :

  • Rimed snow crystals
  • Snow flakes
  • All of these
  • Snow crystals

Answer :All of these

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