Engineering Survey Questions and Answers Pdf
Different grades are joined together by a
A. Compound curve
B. Transition curve
C. Reverse curve
D. Vertical curve
Answer: Option D
The maximum tolerance in a 20 m chain is
A. ±2 mm
B. ±3 mm
C. ±5 mm
D. ±8 mm
Answer: Option C
An aerial photograph may be assumed as
A. Parallel projection
B. Orthogonal projection
C. Central projection
D. None of these
Answer: Option C
Limiting gradient for locating the base line on evenly-sloping ground, is
A. 1 in 12
B. 1 in 10
C. 1 in 8
D. 1 in 6
Answer: Option A
The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as
A. Isocenter
B. Principal point
C. Perspective centre
D. Plumb line
Answer: Option B
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The normal longitudinal overlap is generally kept
A. 50 %
B. 60 %
C. 70 %
D. 75 %
Answer: Option B
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is
A. 80°
B. 70°
C. 60°
D. 50°
Answer: Option C
Pick up the correct statement for horizontal photographs.
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A. Parallel lines do not appear parallel in central projection
B. The two sides of a road meet at the vanishing point
C. The lines parallel to the negative plane are projected as parallel lines
D. All the above
Answer: Option D
A series of closely spaced contour lines represents a
A. steep slope
B. gentle slope
C. uniform slope
D. plane surface
Answer: Option A
The distance between the minor control point and the principal point should be equal to
A. Base line of the left photograph of stereo pair
B. Base line of the right photograph of stereo pair
C. Sum of the base lines of stereo pair
D. Mean of the base lines of the stereo pair
Answer: Option D
Engineering Survey Questions and Answers Pdf
The value of geocentric parallax to be added to the observed altitude of sun is
A. 9" cos α
B. 9" sin α
C. 9" tan α
D. 9" cot α
Answer: Option A
In triangulation surveys
A. The area is divided into triangular figures
B. Control stations are located from which detailed surveys are carried out
C. Sides are not measured excepting the base line
D. All the above
Answer: Option D
Which of the following methods of offsets involves less measurement on the ground?
A. method of perpendicular offsets
B. method of oblique offsets
C. method of ties
D. all involve equal measurement on the ground
Answer: Option A
If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is
A. 0.1
B. 0.4
C. 0.6
D. 1.33
Answer: Option B
Parallax bar measures
A. Parallax
B. Height
C. Parallax difference
D. Height difference
Answer: Option C
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The coverage is least if photography is
A. High oblique
B. Low oblique
C. Vertical
D. None of these
Answer: Option C
Benchmark is established by
A. hypsometry
B. barometric levelling
C. spirit levelling
D. trigonometrical levelling
Answer: Option C
The difference between a level line and a horizontal line is that
A. level line is a curved line while hori-zontal line is a straight line
B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
C. horizontal line is normal to plumb line while level line may not be normal to the plumb line
D. both are same
Answer: Option A
The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is
A. 5100 nautical miles
B. 5700 nautical miles
C. 120 nautical miles
D. 500 nautical miles
Answer: Option B
If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good
A. cos H = tan λ/tan δ
B. sin α = sin λ/sin δ
C. sin A = cos δ/cos λ
D. All the above
Answer: Option D
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Pick up the correct statement from the following:
A. North end of the polar axis is known as North Pole
B. South end of the polar axis is known as South Pole
C. Point where polar axis when produced northward intersects the celestial sphere, is known as north celestial pole
D. All the above
Answer: Option D
Homologous point is
A. Photo principal point
B. Ground principal point
C. Ground isocenter
D. All the above
Answer: Option D
Pick up the correct statement from the following:
A. Aerial photographs may be either vertical or oblique
B. Vertical photographs are taken with the axis of camera pointing vertically downward
C. Vertical photographs are used for most accurate maps
D. All the above
Answer: Option D
Pick up the correct statement from the following:
A. Refraction correction is zero when the celestial body is in the zenith
B. Refraction correction is 33' when the celestial body is on the horizon
C. Refraction correction of celestial bodies depends upon their altitudes
D. All the above
Answer: Option D
In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as
A. W23°30’N
B. N66°30’W
C. S113°30’N
D. N23°30’W
Answer: Option B
land surveying exam questions
The principal line is the line joining the principal point and
A. Nadir
B. Isocenter
C. Perspective centre
D. None of these
Answer: Option B
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
Pick up the correct statement from the following:
A. One degree of longitude has greatest value at the equator
B. One degree of longitude has greatest value at the poles
C. One degree of longitude has the same value everywhere
D. One degree of latitude decreases from the equator to the poles
Answer: Option A
Places having same latitude
A. Lie on the parallel of the latitude
B. Are equidistant from the nearer pole
C. Are equidistant from both the poles
D. All the above
Answer: Option D
The difference of parallax for a given difference in elevation is independent of
A. Focal length of the camera
B. Overall size of the photo graphs
C. Percentage of overlap
D. All the above
Answer: Option D
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Latitude of a place is the angular distance from
A. Greenwich to the place
B. Equator to the poles
C. Equator to the nearer pole
D. None of these
Answer: Option D
Homologous points are
A. Opposite corners of a photograph
B. Nodal points of the camera lens
C. Corresponding points on the ground and photograph
D. Plumb points of stereo pair of photographs
Answer: Option C
While making astronomical observations, the observer is mainly concerned with
A. The direction of the vertical, the axis of rotation of the instrument
B. The direction of the poles of the celestial sphere
C. The direction of the star from the instrument
D. All the above
Answer: Option D
The sensitivity of a bubble tube can be increased by
A. increasing the diameter of the tube
B. decreasing the length of bubble
C. increasing the viscosity of liquid
D. decreasing the radius of curvature of tube
Answer: Option A
If θ and δ be the latitude of a place and declination of a star respectively, the upper culmination of the star will be north of zenith if its zenith distance, is
A. δ - θ
B. θ - δ
C. θ + δ
D. (θ + δ)/2
Answer: Option A
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Pick up the incorrect statement from the following:
A. Apparent solar time is measured from the lower transit of the true sun
B. Mean solar time is measured from the lower transit of the mean sun
C. Sidereal time is measured from the lower transit of the first point of Aries
D. Sidereal time is measured from the upper transit of the first point of Aries
Answer: Option D
The maximum error in radial line assumption, is
A. h/H f tan θ
B. h/H f² tan θ
C. h/H f² sin θ
D. h/H f cos θ
Answer: Option A
G.M.T. corresponding to given mean time, equals
A. L.M.T. - East longitude in time
B. L.M.T. + East longitude in time
C. L.M.T. - West longitude in time
D. None of these
Answer: Option A
According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of
A. Tangents of two adjacent parts
B. Sines of two adjacent parts
C. Cosines of two adjacent parts
D. Both (A) and (B) above
Answer: Option D
The meridian of a place is
A. A great circle passing through the place and the poles
B. A great circle whose plane is perpendicular to the axis of rotation and it also passes through the place
C. A semi-circle which passes through the place and is terminated at the poles
D. An arc of the great circle which passes through the place and is perpendicular to the equator
Answer: Option C
levelling question and answer pdf
The latitude (λ) of a place and the altitude (α) of the pole are related by
A. λ = α
B. λ = 90° - α
C. λ = α - 90°
D. λ = 180° - α
Answer: Option A
If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement
A. i = v. t. H/f
B. i = v. f/t. H
C. i = v. t. (f/H)
D. i = t. H/v. f
Answer: Option C
If θ and δ be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is
A. δ - θ
B. θ - δ
C. θ + δ
D. ½ (θ - δ)
Answer: Option B
Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as
A. Swing
B. Tilt
C. Tip
D. None of these
Answer: Option C
Pick up the incorrect statement from the following:
A. Latitudes north of the equator are taken as positive
B. Latitudes south of the equator are taken as negative
C. Longitudes east of Greenwich are taken as negative
D. Longitudes west of Greenwich are taken as positive
Answer: Option C
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Intersection method of detailed plotting is most suitable for
A. forests
B. urban areas
C. hilly areas
D. plains
Answer: Option C
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 is more 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
The sun's declination remains north between
A. March 21 to June 21
B. June 21 to September 21
C. September 21 to December 21
D. Both (A) and (B) of above
Answer: Option D
Pick up the incorrect statement from the following. High oblique photographs
A. May have tilt up to 30°
B. May include the image of the horizon
C. May not include the image of the horizon
D. None of these
Answer: Option D
The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is
A. f2
B. 2f2
C. 3f2
D. ½f
Answer: Option A
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