Surveying Mcqs

This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Surveying ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Surveying comprehensively.

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16.
If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is________________?

77° N

23° S

13° E

13° W

17.
The graduations in prismatic compass_____________?

Are inverted

Are upright

Run clockwise having 0° at south

Run clockwise having 0° at north

18.
The process of turning the telescope about the vertical axis in horizontal plane is known as______________?

Transiting

Reversing

Plunging

Swinging

19.
Which of the following is not the function of levelling head ?

To support the main part of the instrument

To attach the theodolite to the tripod

To provide a means for leveling the theodolite

None of the above

20.
A telescope is said to be inverted if its______________?

Vertical circle is to its right and the bubble of the telescope is down

Vertical circle is to its right and the bubble of the telescope is up

Vertical circle is to its left and the bubble of the telescope is down

Vertical circle is to its left and the bubble of the telescope is up

21.
Size of a theodolite is specified by________________?

The length of telescope

The diameter of vertical circle

The diameter of lower plate

The diameter of upper plate

22.
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?

On its outer spindle with a relative motion between the vernier and graduated scale of lower plate

On its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate

On its inner spindle with a relative motion between the vernier and the graduated scale of lower plate

On its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

23.
For which of the following permanent adjustments of theodolite, the spire test is used ?

Adjustment of plate levels

Adjustment of line of sight

Adjustment of horizontal axis

Adjustment of altitude bubble and vertical index frame

24.
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?

Error due to eccentricity of verniers

Error due to displacement of station signals

Error due to wrong adjustment of line of collimation and trunnion axis

Error due to inaccurate graduation

25.
The cross hairs in the surveying telescope are placed_____________?

Midway between eye piece and objec¬tive lens

Much closer to the eye-piece than to the objective lens

Much closer to the objective lens than to the eye piece

Anywhere between eye-piece and objective lens

26.
The adjustment of horizontal cross hair is required particularly when the instrument is used for_____________?

Leveling

Prolonging a straight line

Measurement of horizontal angles

All of the above

27.
The error due to eccentricity of inner and outer axes can be eliminated by________________?

Reading both verniers and taking the mean of the two

Taking both face observations and taking the mean of the two

Double sighting

Taking mean of several readings distributed over different portions of the graduated circle

28.
In an internal focussing type of telescope, the lens provided is_______________?

Concave

Convex

Plano-convex

Plano-concave

29.
The rise and fall method of levelling provides a complete check on_______________?

Backsight

Intermediate sight

Foresight

All of the above

30.
A’level line’is a______________?

Horizontal line

Line parallel to the mean spheriodal surface of earth

Line passing through the center of cross hairs and the center of eye piece

Line passing through the objective lens and the eye-piece of a dumpy or tilting level

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