Surveying Objective Question | Answer | Pdf - 01

studymaterials October 30, 2020

Surveying Objective Question | Answer | Pdf - 01


Question No. 01 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
Answer: Option C


Question No. 02 Contour interval is

(A) The vertical distance between two consecutive contours
(B) The horizontal distance between two consecutive contours
(C) The vertical distance between two points on same contour
(D) The horizontal distance between two points on same contour
Answer: Option A


Question No. 03 There are two stations A and B. Which of the following statements is correct?

(A) The fore bearing of AB is AB
(B) The back bearing of AB is BA
(C) The fore and back bearings of AB differ by 180°
(D) All the above
Answer: Option D


Question No. 04 If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

(A) Direct vernier

Surveying Objective Question


(B) Double vernier
(C) Retrograde vernier
(D) Simple vernier
Answer: Option C

Question No. 05 The method of reversal

(A) Is usually directed to examine whether a certain part is truly parallel or perpendicular to
another
(B) Makes the erroneous relationship between parts evident
(C) Both (a) and (b)
(D) Neither (a) nor (b)
Answer: Option C


Question No. 06 Which of the following introduces an error of about 1 in 1000 if 20 m chain is used?

(A) Length of chain 20 mm wrong
(B) One end of the chain 0.9 m off the line
(C) One end of chain 0.9 m higher than the other
(D) All the above
Answer: Option D


Question No. 07 Chain surveying is well adopted for

(A) Small areas in open ground
(B) Small areas with crowded details
(C) Large areas with simple details
(D) Large areas with difficult details
Answer: Option A


Question No. 08 Two contour lines, having the same elevation

(A) Cannot cross each other
(B) Can cross each other
(C) Cannot unite together
(D) Can unite together
Answer: Option D


Question No. 09 A dumpy level is set up with its eye-piece vertically over a peg. The height from the top of peg to the centre of the eye-piece is 1.540 m and the reading on peg is 0.705 m. The level is then setup over . The height of the eye-piece above peg is 1.490 m and a reading on is 2.195 m. The difference in level between and is

(A) 2.900 m
(B) 3.030 m
(C) 0.770 m
(D) 0.785 m
Answer: Option C


Question No. 10 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

(A) 2
(B) 3
(C) 4/3
(D) 3/2
Answer: Option D


Question No. 11 Measuring with a 30 m chain, 0.01 m too short, introduces

(A) Positive compensating error
(B) Negative compensating error
(C) Positive cumulative error
(D) Negative cumulative error
Answer: Option C


Question No. 12 The conventional sign shown in below figure represents a

(A) Bridge carrying railway below road
(B) Bridge carrying road below railway
(C) Bridge carrying road and railway at the same level
(D) A level crossing
Answer: Option B


Question No. 13 Pick up the correct statement from the following:

(A) In astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce a real inverted image in front of the eye piece
(B) In Galileo's telescope, the rays from the object get refracted at the objective and are intercepted by the eyepiece before a real image is formed
(C) A line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight
(D) All the above
Answer: Option D


Question No. 14 The number of horizontal cross wires in a stadia diaphragm is

(A) One
(B) Two
(C) Three
(D) Four
Answer: Option C


Question No. 15 Total latitude of a point is positive if it lies

(A) North of the reference parallel
(B) South of the reference parallel
(C) East of the reference parallel
(D) West of the reference parallel
Answer: Option A


Question No. 16 If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping

(A) It is possible to set offsets correctly on east side
(B) It is possible to set offsets correctly on east side
(C) It is not possible to set offsets correctly on west side
(D) It is possible to set offsets correctly on both sides
Answer: Option D


Question No. 17 If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures than the sum of the east departures, the bearing of the closing line is in the

(A) NE quadrant
(B) SE quadrant
(C) NW quadrant
(D) SW quadrant
Answer: Option B


Question No. 18 The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescopes

(A) Resolving power
(B) Brightness
(C) Field of view
(D) Magnification
Answer: Option D


Question No. 19 Pick up the correct statement from the following:

(A) Mistakes arise from inattention, inexperience or carelessness
(B) Systematic errors persist and have regular effects in the survey performances
(C) Accidental errors occur inspite of every precaution is taken
(D) All the above
Answer: Option D


Question No. 20 Horizontal distances obtained by thermometric observations

(A) Require slope correction
(B) Require tension correction
(C) Require slope and tension corrections
(D) Do not require slope and tension corrections
Answer: Option D


Question No. 21 A clinometer is used for

(A) Measuring angle of slope
(B) Correcting line of collimation
(C) Setting out right angles
(D) Defining natural features
Answer: Option A


Question No. 22 Pick up the correct statement from the following:

(A) A refracting telescope consists optically of two lenses
(B) The principal axes of both the lenses coincide the optical axis of the telescope
(C) The lens nearer the object to be viewed is convex and is called objective
(D) All the above
Answer: Option D


Question No. 23 Accurate measurement of deflection angles with a transit not properly adjusted may be made by

(A) Setting the Vernier A at zero at back station and then plunging the telescope
(B) Setting the Vernier A at zero at back station and turning the instrument to the forward
station
(C) Taking two back sights one with the telescope normal and the other with telescope inverted
(D) None of these
Answer: Option C

Question No. 24 Pick up the correct statement from the following:

(A) The framework which consists of a series of connected lines, the lengths and directions of which are found from measurements, is called a traverse
(B) The system of a series of lines which forms a circuit which ends at the starting point, is called a closed traverse
(C) The traverse that starts from a point already fixed in some survey system and ends on another such point, is called a controlled traverse
(D) All the above
Answer: Option D


Question No. 25 The reduced level of a floor is 99.995 m, the staff reading on the floor is 1.505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is

(A) 3.290 m
(B) 3.300 m
(C) 3.275 m
(D) 2.790 m
Answer: Option B


Question No. 26 Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed (where is in kilometers.)

(A) ± 0.1 k mm
(B) ± 0.2 k mm
(C) ± 0.1 k
(D) 0.2 k mm
Answer: Option D


Question No. 27 Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to

(A) Half the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets, and thrice the sum of the even offsets
(B) One-third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets
(C) One-third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets
(D) One-sixth the width of a strip, multiplied by the sum of the two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets
Answer: Option B


Question No. 28 Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to

(A) 14.14 m
(B) 28.28 m
(C) 200 m
(D) None of these
Answer: Option B


Question No. 29 The 'point of curve' of a simple circular curve, is

(A) Point of tangency
(B) Point of commencement
(C) Point of intersection
(D) Mid-point of the curve
Answer: Option B

Question No. 30 Permanent adjustments of a level are

(A) 2 in number
(B) 3 in number
(C) 4 in number
(D) 6 in number
Answer: Option A


Question No. 31 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
Answer: Option C


Question No. 32 If is the speed of a locomotive in km per hour, g is the acceleration due to gravity, is the distance between running faces of the rails and is the radius of the circular curve, the required super elevation is

(A) gV²/GR
(B) Rg/GV²
(C) GR/gV²
(D) GV²/gR
Answer: Option D


Question No. 33 The method generally preferred to for contouring an undulating area, is

(A) Chain surveying
(B) Plane table surveying
(C) Tacheometrical surveying
(D) Compass surveying
Answer: Option C


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