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Q1. | In plane table survey the method used for locating the plane table station is |

A. | Radiation [Wrong Answer] |

B. | Intersection [Wrong Answer] |

C. | Radiation or intersection [Correct Answer] |

D. | Traversing [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Himanshu Gupta Said on 2019-06-28 03:27:41actual answwer is Resection but in absence of actual answer mark the most appropriate one. DUTESH KUMAR Said on 2019-02-17 02:39:12but in case of rapid settlement of station sometimes intersection method is used !! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ The distance between steps for measuring down hill to obtain better accuracy.

decreases with decrease of slope

increases with increase of slope

decreases with increase of slope

decreases with decrease of weight of the chain.

⇒ Setting out a curve by two theodolite method, involves.

linear measurements only

angular measurements only

both linear and angular measurements

none of these.

⇒ The suitable contour interval for a map with scale 1 : 10000 is

2 m

5m

10 m

20 m

⇒ If vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on.

staff normal

staff vertical

staff normal as well as vertical

none of these.

⇒ Which of the following errors can be neutralised by setting the level midway between the two stations ?

error due to curvature only

error due to refraction only

error due to both curvature and re-fraction

none of the above

⇒ An offset more than 15m in length is known as

Long offset

Short offset

Oblique offset

Right-angled offset

⇒ The allowable length of an offset depends upon the

degree of accuracy required

method of setting out the perpendiculars and nature of ground

scale of plotting

all of the above

⇒ If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to

d

1/d

d2

1/d2

⇒ In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by.

adding 180Â°, if the given bearing is less than 180Â°

subtracting 180Â°, if the given bearing, is more than 180Â°

changing the cardinal points, i.e. substituting N for S and E for W and vice-versa

none of these.

⇒ If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for.

horizontal sights

inclined sights upward

inclined sight downward

none of these.

⇒ Contours of different elevations may cross each other only in the case of.

an over hanging cliff

a vertical cliff

a saddle

an inclined plane.

⇒ A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to.

cumulative, + 0.11 m

compensating, Â± 0.11 m

cumulative, - 0.11 m

none of these

⇒ In an internal focusing telescope.

the objective is at a fixed distance from the diaphragm

the focusing is done by the sliding of a divergent lens.

the focusing divergent lens is situated at about the middle of the tube

all the above.

⇒ A transit is oriented by setting its vernier A to read the back azimuth of the preceding line. A back sight on the preceding transit station taken and transit is rotated about its vertical axis. The vernier A reads.

azimuth of the forward line

bearing of the. forward line

back bearing of the forward line

equal to 360Â°-azimuth of the forward line.

⇒ In a theodolite.

the telescope axis is perpendicular to transit axis

the axis of rotation is perpendicular to transit axis

the telescope axis, the transit axis and the rotation axis pass through the centre of theodolite

all the above.

⇒ If the declination of the needle is 10° W.

each of the whole circle reckoning has to be micros by 10Â°

in the quadrantal method, the correction is positive in the 1st and 3rd quadrants

in the quadrantal method, the corrections is negative in 2nd and 4th quadrants

all the above.

⇒ Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following.

chain surveying

compass surveying

plan table surveying

tacheometric surveying.

⇒ Pick up the correct statement from the following :

the tangent screw enables to give small movement under conditions of smooth and positive control

standing on the tripod is the levelling head or trib arch

the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical

all the above.

⇒ You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the method of.

repetition

reiteration

double observations

exactness.

⇒ If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be

true R.L.

more than true R.L.

less than true R.L.

none of the above

⇒ 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.

⇒ If

*i*is the stadia distance,

*f*is the focal length and

*d*is the distance between the objective and vertical axis of the techeometer, the multiplying constant, is.

f/i

i/f

(f + d)

f/d.

⇒ For true difference in elevations between two points

*A*and

*B*, the level must be set up.

at any point between A and B

at the exact mid point of A and B

near the point A

near the point B.

⇒ A metallic tape is made of

steel

invar

linen

cloth and wires

⇒ 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.

⇒ 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

⇒ The radius of a simple circular curve is 300 m and length of its specified chord is 30 m. The degree of the curve is.

5.73Â°

5.37Â°

3.57Â°

3.75Â°.

⇒ The polar axis of earth is shorten than equatorial axis by

4295 metre

9542 metre

42.95 kilometre

None of these

⇒ Which of the following instruments can be used for the direct measurement of directions?

Surveyor's compass

Prismatic compass

Any of the above

None of the above

⇒ An ideal vertical curve to join two gradients, is.

circular

parabolic

elliptical

hyperbolic