Civil Engineering MCQs

Page No. 75

Which on speed C. of the electromagnetic wave is correct ?


aC = v

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bC = /v

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cC = v

✓


dC = 1/

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View Answer C = v

Which one of the following frequency regions is a part of sun’s radiation ?


a Ultraviolet frequency region

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bInfrared frequency region

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cRadio frequency region

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dAll of these

✓


View Answer All of these

Which one of the following geometric errors of satellite sensors is random ?


a Scan skew

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bPanoramic distortion

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cEarth rotation

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d Altitude variation

✓


View Answer Altitude variation

The value of energy quantum for radiation of any frequency is proportional to________________?


a The frequency

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bThe reciprocal of the energy

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cThe square of the frequency

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dThe square root of the frequency

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View Answer The frequency

The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?


a8

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b12

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c16

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d24

✓


View Answer 24

Pick up the important characteristic of a target which facilitates its identification from the following ?


aSpectral variation

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bSpatial variation

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c Temporal variation

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d All of these

✓


View Answer All of these

Earth observations from a satellite platform provide____________?


aSynoptic view of a large area

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bConstant solar zenith angles and similar illumination conditions

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cRepetitive observations of the same area with intervals of a few minutes to a few weeks

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dAll of these

✓


View Answer All of these

DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within___________________?


a 25 km

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b50 km

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c75 km

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d100 km

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View Answer 100 km

Electromagnetic radiation_______________?


aProduces a time varying magnetic field and vice versa

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bOnce generated, remains self-propagating

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c Is capable to travel across space

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dAll of these

✓


View Answer All of these

A and B are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?


aHeight displacement of A will be less than that of B

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bHeight displacement of B will be less than that of A

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c Height displacement of A and B is equal

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dHeight displacement of A and B will be towards each other

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