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Q1. | Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as. |

A. | cadastral surveys [Wrong Answer] |

B. | city surveys [Wrong Answer] |

C. | topographical surveys [Correct Answer] |

D. | guide map surveys [Wrong Answer] |

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Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ As per Indian standard, the length of one link in 30 metre chain should be

30 cm

20 cm

40 cm

10 cm

⇒ The most reliable method of plotting a theodolite traverse, is.

by consecutive co-ordinates of each station

by independent co-ordinates of each station

by plotting included angles and scaling off each traverse leg

by the tangent method of plotting.

⇒ Pick up the correct statement from the following.

the contour lines having the same elevation cannot unite and continue as one line

a contour can not end abruptly, but must ultimately close itself not necessarily within the limits of map.

the direction of steepest slope at a point on a contour is at right angles to the contour

all the above.

⇒ Keeping the instrument height as 1.5 m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than

25 cm

20 m

45 m

10 m

⇒ During levelling if back sight is more than foresight.

The forward staff is at lower point

The back staff is at lower point

The difference in level, cannot be ascertained.

none of these.

⇒ The angle of intersection of the two plane mirrors of an optical square is

30°

45°

60°

90°

⇒ The radius of curvature of the arc of the bubble tube is generally kept.

10 m

25 m

50 m

100 m

⇒ In plane tabling, the straight lines, angles and triangles are constructed by

Protractor

Divider

Graphical method

Planimeters

⇒ is the conventional sign of.

temple

mosque

idgah

church

⇒ In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in.

north-west quadrant

north east quadrant

south-east quadrant

south-west quadrant.

⇒ There are two stations

*A*and

*B*. Which of the following statements is correct :

the fore bearing of AB is AB

the back bearing of AB is BA

the fore and back bearings of AB differ by 180Â°

all the above.

⇒ Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as.

cadastral surveys

city surveys

topographical surveys

guide map surveys

⇒ If n is the number of sides then the total sum of exterior angles of a closed traverse should be

n + 2

2n - 4

2n + 4

4n - 2

⇒ Short offsets are measured with.

an ordinary chain

an invar tape

a metallic tape

a steel tape.

⇒ Normal tension is that pull which

is used at the time of standardising the tape

neutralizes the effect due to pull and sag

makes the correction due to sag equal to zero

makes the correction due to pull equal to zero

⇒ The back staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a point is 1.345 m, the reduced level of the point, is.

502.685 m

501.345 m

501.340 m

504.030 m

⇒ The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's.

resolving power

brightness

field of view

magnification.

⇒ For orientation of a plane table with three points

*A*,

*B*and

*C*, Bessel's drill is.

Align b through a and draw a ray towards c, align a through b and draw a ray towards c, finally align c through the point of intersection of the previously drawn rays

Align c through a and draw a ray towards b, align a through c and draw a ray towards b, finally align b through the point of intersection of the previously drawn rays

Align c through b and draw a ray towards a, align b through c and draw a ray towards a, finally align a, through the point of intersection of the previously, drawn rays

In the first two steps any two of the points may be used and a ray drawn towards the third point, which is sighted through the point of intersection of previously drawn rays in the final step.

⇒ Plotting of inaccessible points on a plane table, is done by.

intersection

traversing

radiation

none of these.

⇒ In a lemniscate curve the ratio of the angle between the tangent at the end of the polar ray and the straight, and the angle between the polar ray and the straight, is.

2

3

4

3/2

⇒ The scale, on which three dimensions can be measured, is known as

Plain scale

Diagonal scale

Chord scale

Vernier scale

⇒ The angle of intersection of a contour and a ridge line, is.

30Â°

45Â°

60Â°

90Â°.

⇒ An imaginary line joining the points of equal elevation on the surface of the earth, represents.

contour surface

contour gradient

contour line

level line

⇒ The 'point of curve' of a simple circular curve, is.

point of tangency

point of commencement

point of intersection

mid-point of the curve

⇒ To avoid large centering error with very short legs, observations are generally made.

to chain pins

by using optical system for centering the theodolite

to a target fixed on theodolite tripod on which theodolite may be fitted easily

all the above.

⇒ In case of geographical maps, the scale is usually

1 cm = 10 cm to 10 cm

1 cm = 50 m to 100m

1 cm = 5 km to 160 km

1 cm = more than 200 km

⇒ 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

⇒ The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known.

declination

azimuth

dip

bearing.

⇒ A clinometer is used for.

measuring angle of slope

correcting line of collimation

setting out right angles

defining natural features.

⇒ Pick up the correct statement from the following :

the lines of sight while observing back sight and fore sight lie in the same horizontal plane

the staff readings are measurements made vertically downwards from a horizontal plane

the horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis

all the above.