SURVEYING QUIZ | EXAMIANS

The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as

Satellite station

Pivot station

False station

Eccentric station

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The instrument used for accurate centering in plane table survey is

plumbing fork

alidade

spirit level

trough compass

TRUE ANSWER : ?
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The prismatic compass and surveyor’s compass

give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively

both give QB of a line and WCB of a line

both give WCB of a line

both give QB of a line

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A star is said to elongate

When the angle at the star of the spherical triangle is 90°

When the star

When the star momentarily moves vertically

All of these

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The principal plane contains

All of these

Iso-centre

Nadir point

Principal point

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Theodolite is an instrument used for

measurement of vertical angles only

measurement of both horizontal and vertical angles

measurement of horizontal angles only

tightening the capstan-headed nuts of level tube

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If α is the observed altitude, the refraction correction in seconds, is

58 cos α

58" cot α

58" tan α

58 sin α

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The coverage is least if photography is

None of these

Low oblique

High oblique

Vertical

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Triangulation surveys are carried out for providing

Planimetric control

Both planimetric and height control

None of these

Height control

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Which of the following methods of offsets involves less measurement on the ground?

all involve equal measurement on the ground

method of oblique offsets

method of perpendicular offsets

method of ties

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