After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (i) Levelling (ii) Orientation (iii) Centering The correct sequence of these operations is (A) (i), (ii), (iii) (B) (i), (iii), (ii) (C) (iii), (i), (ii) (D) (ii), (iii), (i)

After fixing the plane table to the tripod, the main operations which are needed at each plane
table station are
 (i) Levelling
 (ii) Orientation
 (iii) Centering
 The correct sequence of these operations is
(A) (i), (ii), (iii)
(B) (i), (iii), (ii)
(C) (iii), (i), (ii)
(D) (ii), (iii), (i)
by

1 Answer

Answer :

(B) (i), (iii), (ii)
by

Related questions

In setting up a plane table at any station (A) Levelling is done first (B) Centering is done first (C) Both levelling and centering are done simultaneously (D) Orientation is done first

Description : In setting up a plane table at any station (A) Levelling is done first (B) Centering is done first (C) Both levelling and centering are done simultaneously (D) Orientation is done first

Last Answer : (C) Both levelling and centering are done simultaneously

The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known (A) Levelling (B) Centering (C) Orientation (D) Setting

Description : The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known (A) Levelling (B) Centering (C) Orientation (D) Setting

Last Answer : (C) Orientation

In setting up a plane table at any station (a) Leveling is done first (b) Centering is done first (c) Both leveling and centering are done simultaneously * (d) Orientation is done first

Description : In setting up a plane table at any station (a) Leveling is done first (b) Centering is done first (c) Both leveling and centering are done simultaneously * (d) Orientation is done first

Last Answer : c) Both leveling and centering are done simultaneously *

While setting a plane table at a station it was found that the error in centering was 30 cm away from the ray of length 40 m drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of the ray in plan from the true position will be (A) 0.02 cm (B) 0.15 cm (C) 0.2 cm (D) 0.1 cm

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Last Answer : (B) 0.15 cm

The operation of resection involves the following steps 1. Rough orientation of the plane table 2. The three lines form a triangle of error 3. Drawing lines back through the three control points 4. Select a point in the triangle of error such that each ray is equally rotated either clockwise or anti clockwise 5. The points obtained by three rays are the correct location. The correct sequence is (A) 1, 3, 2, 4, 5 (B) 1, 2, 3, 4, 5 (C) 1, 4, 3, 2, 5 (D) 1, 3, 2, 4, 5

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Last Answer : (A) 1, 3, 2, 4, 5

To avoid large centering error with very short legs, observations are generally made (A) To chain pins (B) By using optical system for centering the theodolite (C) To a target fixed on theodolite tripod on which theodolite may be fitted easily (D) All the above

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Last Answer : (C) To a target fixed on theodolite tripod on which theodolite may be fitted easily

Pick up the correct statement from the following: (A) The tangent screw enables to give small movement under conditions of smooth and positive control (B) Standing on the tripod is the levelling head or trib arch (C) The levelling screws are used to tilt the instrument so that its rotation axis is truly vertical (D) All the above

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Last Answer : (D) All the above

The instrument used for accurate centering in plane table survey is (A) Spirit level (B) Alidade (C) Plumbing fork (D) Trough compass

Description : The instrument used for accurate centering in plane table survey is (A) Spirit level (B) Alidade (C) Plumbing fork (D) Trough compass

Last Answer : (C) Plumbing fork

Orientation of a plane table by solving two point problems is only adopted when (A) Saving of time is a main factor (B) Better accuracy is a main factor (C) Given points are inaccessible (D) None of these

Description : Orientation of a plane table by solving two point problems is only adopted when (A) Saving of time is a main factor (B) Better accuracy is a main factor (C) Given points are inaccessible (D) None of these

Last Answer : (C) Given points are inaccessible

The type of surveying which requires least office work is (A) Tachometry (B) Trigonometrical levelling (C) Plane table surveying (D) Theodolite surveying

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Last Answer : (C) Plane table surveying

To orient a plane table at a point roughly south of the mid-point of two inaccessible conical hill stations and in the plains, a point is selected in line with AB and table is oriented at by bringing ab in line with AB. A ray is then drawn towards and at the table is oriented by back ray method. The orientation so obtained, is (A) Unique and correct (B) Incorrect (C) Manifold and correct (D) Not reliable

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Last Answer : (C) Manifold and correct

While working on a plane table, the correct rule is: (A) Draw continuous lines from all instrument stations (B) Draw short rays sufficient to contain the points sought (C) Intersection should be obtained by actually drawing second rays (D) Take maximum number of sights as possible from each station to distant objects

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Last Answer : (B) Draw short rays sufficient to contain the points sought

The methods used for locating the plane table stations are (i) Radiation (ii) Traversing (iii) Intersection (iv) Resection The correct answer is (A) (i) and (ii) (B) (iii) and (iv) (C) (ii) and (iv) (D) (i) and (iii)

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Last Answer : (C) (ii) and (iv)

Which one of the following is correct sequence for the flow of electrons in the energy-fixing reactions of photosynthesis? a. Water—photosystem 1—photosystem II—NADPH b. Photosystem I—NADPH—water—photosystem II c. Water------ photosystem II------ photosystem I—NADPH d. NADPH—photosystem Il—photosystem I—water

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Last Answer : d. NADPH—photosystem Il—photosystem I—water

Which of the following is true ? I. Implementation of self-join is possible in SQL with table alias. II. Outer-join operation is basic operation in relational algebra. III. Natural join and outer join operations are equivalent. (A) I and II are correct. (B) II and III are correct. (C) Only III is correct. (D) Only I is correct.

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Last Answer : (D) Only I is correct.

Subtense bar is an instrument used for (A) Levelling (B) Measurement of horizontal distances in plane areas (C) Measurement of horizontal distances in undulated areas (D) Measurement of angles

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Last Answer : (C) Measurement of horizontal distances in undulated areas

Pick up the correct statement from the following: (A) An observation or the resulting reading with the level on a levelling staff is called sight (B) A back sight is the first sight taken after setting up the instrument in any position (C) The first sight on each change point is a fore sight (D) All the above

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Describe any one method of orientation of plane table surveying

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Describe back sighting method of orientation of plane table surveying.

Description : Describe back sighting method of orientation of plane table surveying.

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Explain Orientation of plane table by Back-sighting Method.

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What is orientation of plane table? State the procedure of any one method of orientation.

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The 'fix' of a plane table station with three known points, is bad if the plane table station lies (A) In the great triangle (B) Outside the great triangle (C) On the circumference of the circumscribing circle (D) None of these

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Last Answer : (C) On the circumference of the circumscribing circle 

The 'fix' of a plane table from three known points, is good, if (A) Middle station is nearest (B) Middle station is farthest (C) Either the right or left station is nearest (D) None of these

Description : The 'fix' of a plane table from three known points, is good, if  (A) Middle station is nearest  (B) Middle station is farthest  (C) Either the right or left station is nearest  (D) None of these 

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Locating the position of a plane table station with reference to three known points, is known as (A) Intersection method (B) Radiation method (C) Resection method (D) Three point problem

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In a plane-table survey, the process of determining the plotted position of a station occupied by the plane-table by means of sights taken towards known points, the locations of which have already been plotted, is known as (a) Radiation (b) Resection (c) Intersection (d) Traversing

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Last Answer : (b) Resection

Define the following terms: i) Level line ii) Bench Mark iii) Change point iv) Profile levelling

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Last Answer : i) Level line - It is line lying in a level surface; it is therefore, normal to the plumb line at all points. ii) Bench Mark - These are fixed points or marks of known RL determined with ... the centerline of a proposed ditch or road or the centerline of a natural feature such as a stream bed.

For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is (A) Dry rolling, wet rolling, application of screening and application of filler (B) Dry rolling, application of filler, wet rolling and application of screening (C) Dry rolling, application of screening, wet rolling and application of filler (D) Dry rolling, application of screening, application of filler and wet rolling

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Last Answer : Answer: Option C

Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling? (A) Radiation (B) Intersection (C) Traversing (D) Resection

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Centering error of a theodolite produces an error (A) In all angles equally (B) Which does not vary with the direction or pointing (C) Which varies with the direction of pointing and inversely with the length of sight (D) None of these

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Consider the following operations: 1. Drilling 2. Blasting 3. Mucking 4. Placing steel 5. Placing concrete The correct sequence of these operations in tunnel construction is (A) 1, 2, 4, 3, 5 (B) 1, 3, 2, 4, 5 (C) 1, 2, 3, 4, 5 (D) 1, 3, 4, 2,

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Explain Fly Levelling with neat sketch. State situation under which fly levelling is needed.

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In the method of tube boring of soil investigation, the following is essential: (A) A tube of about 2 metres length and 20 cm diameter with a cutting edge (B) A flap valve at the bottom of tube is provided to extract the soil sample (C) The tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand (D) All the above

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Define orientation and principle of plane tabling.

Description : Define orientation and principle of plane tabling. 

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