civil engineering MCQs – Page 297

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
5921. Earth observations from a satellite platform provide____________?
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A. All of these

B. Constant solar zenith angles and similar illumination conditions

C. Synoptic view of a large area

D. Repetitive observations of the same area with intervals of a few minutes to a few weeks

5922. Pick up the correct statement from the following ?
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A. Permeability is expressed as the ratio of the magnetic flux density B. to the field strength of the magnetizing field

B. Permeability is a measure of conducting the magnetic lines of force in the material

C. All of these

D. Permeability is a measure of the extent to which magnetic lines of force can penetrate a medium

5923. Which one of the following statements is correct ?
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A. All of these

B. The effect of grain size on reflection is maximum in the near-IR region

C. The effect of grain size on reflection is low in the visible region of the spectrum

D. Snow albedo falls at all wave length with the increase of grain size

5924. Spatial variation in horizontal and vertical directions is caused due to_________________?
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A. Biological weathering of rocks

B. Chemical weathering of rocks

C. All of these

D. Physical weathering of rocks

5925. The code based GPS receivers are generally used for_________________?
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A. Trans movement

B. Vehicle tracking

C. All of these

D. Land navigation

5926. The reflection of solar energy is characterised by the water content in the leaf, in the reflective optical infrared______________?
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A. Visible (0.4

B. Near-IR (0.7

C. Short wave-IR (1.3

D. None of these

5927. The various stages occuring in GPS system are described below ?
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A. Detection of the GPS signals

B. Processing the data in the built-in-computer

C. Generation of an output to the user

D. Decoding the GPS signal</strong>

5928. The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target_________________?
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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

5929. Pick up the correct statement from the following ?
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A. All of these

B. The first man-made satellite, Sputnik-l was launched on 4th October, 1957

C. Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960

D. The United States Explorer 6 transmitted the first picture of the earth in August 1959

5930. Which one of the following statements is correct ?
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A. During the day, earth reflects solar radiation

B. During the day, earth reflects both solar radiations the emission from its surface

C. During the night, earth emits radiation from its surface

D. All of these
5931. Which on speed C. of the electromagnetic wave is correct ?
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A. C = v

B. C = /v

C. C = 1/

D. C = v
5932. Which one of the following statements is correct ?
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A. The function of an information system is to improve one s ability to make decisions

B. The information system is the chain of operations

C. A map is a collection of stored, analysed data, its stored information is suitability used in making decisions

D. All the above
5933. The most widely used antenna in GPS is_______________?
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A. Horn antenna

B. Microstrip antenna

C. Slotted antenna

D. Parabolic antenna

5934. Electromagnetic spectrum contains________________?
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A. Gamma rays (wave length < 10-10 m)

B. All of these

C. Infrared rays (wave length < 10 -4 m)

D. Ultraviolet rays (wave length < 10-6 m)

5935. Which one the following is a correct statement ?
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A. The layers of the soil parallel to the earth surface are called horizons

B. The vertical section of the soil extending into the parent material, is called profile

C. The transitional layer between two adjoining horizons is called boundary

D. All of these
5936. Which one of the following frequency regions is a part of suns radiation ?
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A. Radio frequency region

B. All of these

C. Infrared frequency region

D. Ultraviolet frequency region

5937. Which one of the following statements regarding remote sensing is correct ?
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A. The interaction of the electromagnetic radiation with the target

B. The emission of electromagnetic radiation from the target

C. Both A. and B.

D. Neither A. nor B.

5938. A perfect gas_________________?
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A. is incompressible

B. is of theoretical interest

C. none of the above

D. has zero viscosity

E. has constant viscosity

5939. Surface tension has the units of____________________?
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A. newton m

B. newtons/m

C. new tons/m

D. newtons

E. newtons/m

5940. A balloon lifting in air follows the following principle_________________?
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A. Archimedes principle

B. principle of buoyancy

C. all of the above

D. continuity equation

E. law of gravitation