Geodetic surveying is undertaken

for production of accurate maps of wide areas

for developing the science of geodesy

making use of most accurate instruments and methods of observation

Prismatic compass is considered more accurate than a surveyor's compass, because

it is provided with a better magnetic needle

it is provided with a sliding glass in the object vane

its graduations are in whole circle bearings

it is provided with a prism to facilitate reading of its graduated circle

The direction of steepest slope on a contour, is

at an angle of 45° to the contour

Tacheometric formula for horizontal distances using horizontal sights can also suitable be employed for inclined sights through θ by multiplying

the multiplying constant by cos² θ and additive constant by cos θ.

True meridians are generally preferred to magnetic meridians because

these change due to change in time

From any point on the surface with a given inclination

only one contour gradient is possible

two contour gradients are possible

indefinite contour gradients are possible

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

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

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

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

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

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

If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by

making repeated observations of angular and linear measurements

making a subsidiary traverse to determine the length of a long leg

The method of reversal

is usually directed to examine whether a certain part is truly parallel or perpendicular to another

makes the erroneous relationship between parts evident

Profile levelling is usually done for determining

elevations along a straight line

The conventional sign shown in below figure represents a

bridge carrying road below railway

bridge carrying railway below road

bridge carrying road below railway

bridge carrying road and railway at the same level

The formula for the horizontal distances for inclined sights, on staff held normal is

plus sign is used for angle of depression

minus sign is used for angle of depression

plus sign is used for angle of depression

minus sign is used for angle of elevation

The diaphragm of a stadia theodolite is fitted with two additional

horizontal and two vertical hairs

During secular variation of magnetic meridian at different places

period of oscillation only varies.

range of oscillations is constant

period of oscillation is constant

range and period of oscillation both vary

period of oscillation only varies.

Designation of a curve is made by :

angle subtended by a chord of any length

angle subtended by an arc of specified length

358 + Mcqs in Surveying Telescope in Surveying Page 5 McqOptions

201.	Geodetic surveying is undertaken
A.	for production of accurate maps of wide areas
B.	for developing the science of geodesy
C.	making use of most accurate instruments and methods of observation
D.	all the above.
Answer» E.

202.	Prismatic compass is considered more accurate than a surveyor's compass, because
A.	it is provided with a better magnetic needle
B.	it is provided with a sliding glass in the object vane
C.	its graduations are in whole circle bearings
D.	it is provided with a prism to facilitate reading of its graduated circle
Answer» E.

203.	The direction of steepest slope on a contour, is
A.	along the contour
B.	at an angle of 45° to the contour
C.	at right angles to the contour
D.	none of these.
Answer» D. none of these.

204.	A relatively fixed point of known elevation above datum, is called
A.	bench mark
B.	datum point
C.	reduced level
D.	reference point.
Answer» B. datum point

205.	The first reading from a level station is
A.	foresight
B.	intermediate sight
C.	back-sight
D.	any sight.
Answer» D. any sight.

206.	If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to
A.	1/10000
B.	1/15000
C.	1/20000
D.	1/25000
Answer» D. 1/25000

207.	Tacheometric formula for horizontal distances using horizontal sights can also suitable be employed for inclined sights through θ by multiplying
A.	the constants by sin² θ
B.	the constants by cos² θ
C.	the constants by cos θ
D.	the multiplying constant by cos² θ and additive constant by cos θ.
Answer» E.

208.	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» D. negative cumulative error.

209.	Plotting of inaccessible points on a plane table, is done by
A.	intersection
B.	traversing
C.	radiation
D.	none of these.
Answer» B. traversing

210.	The rise and fall method of reduction of levels, provides a check on
A.	back sights
B.	fore sights
C.	intermediate sights
D.	all of these.
Answer» E.

211.	True meridians are generally preferred to magnetic meridians because
A.	these converge to a point
B.	these change due to change in time
C.	these remain constant.
D.	None of these.
Answer» D. None of these.

217.	The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be
A.	13.75 m
B.	3.44 m
C.	1375 m
D.	none of these.
Answer» B. 3.44 m

218.	In a telescope the object glass of focal length 14 cm, is located at 20 cm from the diaphragm. The focussing lens is midway between them when a staff 16.50 m away is focussed. The focal length of the focussing lens, is
A.	5.24 cm
B.	6.24 cm
C.	7.24 cm
D.	8.24 cm
Answer» D. 8.24 cm

223.	Correct distance obtained by an erroneous chain is:
A.	A
B.	B
C.	C
D.	D
Answer» B. B

224.	If h is the difference in height between end points of a chain of length l, the required slope correction is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

212.	From any point on the surface with a given inclination
A.	only one contour gradient is possible
B.	two contour gradients are possible
C.	indefinite contour gradients are possible
D.	all the above.
Answer» D. all the above.

213.	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» 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

214.	If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by
A.	taking short legs
B.	making repeated observations of angular and linear measurements
C.	making a subsidiary traverse to determine the length of a long leg
D.	all the above.
Answer» D. all the above.

215.	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» D. compass surveying.

216.	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» D. neither (a) nor (b).

219.	If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by
A.	Bowditch's rule
B.	Transit rule
C.	Empirical rule
D.	all of the above.
Answer» C. Empirical rule

220.	Profile levelling is usually done for determining
A.	contours of an area
B.	capacity of a reservoir
C.	elevations along a straight line
D.	boundaries of property
Answer» D. boundaries of property

221.	The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known
A.	declination
B.	azimuth
C.	dip
D.	bearing.
Answer» D. bearing.

222.	α, β are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is θ°. The height of the hill top above the trunnion axis of the theodolite station, is
A.	A
B.	B
C.	C
D.	D
Answer» E.

225.	If V is the speed of a locomotive in km per hour, g is the acceleration due to gravity, G is the distance between running faces of the rails and R is the radius of the circular curve, the required super elevation is
A.	A
B.	B
C.	C
D.	D
Answer» E.

Explore topic-wise MCQs in Surveying.

Geodetic surveying is undertaken

Prismatic compass is considered more accurate than a surveyor's compass, because

The direction of steepest slope on a contour, is

A relatively fixed point of known elevation above datum, is called

The first reading from a level station is

If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to

Tacheometric formula for horizontal distances using horizontal sights can also suitable be employed for inclined sights through θ by multiplying

Measuring with a 30 m chain, 0.01 m too short, introduces

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

The rise and fall method of reduction of levels, provides a check on

True meridians are generally preferred to magnetic meridians because

From any point on the surface with a given inclination

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

If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by

The method generally preferred to for contouring an undulating area, is

The method of reversal

The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be

In a telescope the object glass of focal length 14 cm, is located at 20 cm from the diaphragm. The focussing lens is midway between them when a staff 16.50 m away is focussed. The focal length of the focussing lens, is

If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by

Profile levelling is usually done for determining

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

α, β are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is θ°. The height of the hill top above the trunnion axis of the theodolite station, is

Correct distance obtained by an erroneous chain is:

If h is the difference in height between end points of a chain of length l, the required slope correction is

If V is the speed of a locomotive in km per hour, g is the acceleration due to gravity, G is the distance between running faces of the rails and R is the radius of the circular curve, the required super elevation is

If Δ is the angle of deflection of the curve, T1 and T2 are its points of tangencies, the angle between the tangent at T1 and long chord T1 T2 will be

To set out a parallel from a given inaccessible point to a given line AB, the following observations and madeDistance AB and angle PAM = a and angle PBA = b are measured where M is a point on the line BA produced. The perpendicular to the desired parallel line from A and B are :

The distance between the point of intersection of an up grade + g1% and downgrade g2% and the highest point of the vertical curve of length L, is

If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction

Correction per chain length of 100 links along a slope of α° is

If Δ is the angle of deflection of a simple curve of radius R, the distance between the mid-point of the curve and long chord, is

If Δ is the angle of deflection of a simple curve of radius R, the length of the curve is :

Accidental or compensating errors of length L are proportional to

If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula,

The following is the conventional sign of

Following is a conventional sign of

If θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is

The conventional sign shown in below figure represents a

If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is

The formula for the horizontal distances for inclined sights, on staff held normal is

The probable error of the adjusted bearing at the middle is

If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is

The area of a plane triangle ABC, having its base AC and perpendicular height h, is

Let angular value of one graduation of a tube of length x be φ seconds and R be the radius of its internal curved surface, then

A tape of length l and weight W kg/m is suspended at its ends with a pull of P kg, the sag correction is

The diaphragm of a stadia theodolite is fitted with two additional

During secular variation of magnetic meridian at different places

Designation of a curve is made by :

Cross-staff is used for

226.	If Δ is the angle of deflection of the curve, T1 and T2 are its points of tangencies, the angle between the tangent at T1 and long chord T1 T2 will be
A.	A
B.	B
C.	C
D.	D
Answer» D. D

227.	To set out a parallel from a given inaccessible point to a given line AB, the following observations and madeDistance AB and angle PAM = a and angle PBA = b are measured where M is a point on the line BA produced. The perpendicular to the desired parallel line from A and B are :
A.	A
B.	B
C.	C
D.	D
Answer» B. B

228.	The distance between the point of intersection of an up grade + g1% and downgrade g2% and the highest point of the vertical curve of length L, is
A.	A
B.	B
C.	C
D.	D
Answer» E.

229.	If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction
A.	A
B.	B
C.	C
D.	D
Answer» B. B

230.	Correction per chain length of 100 links along a slope of α° is
A.	A
B.	B
C.	C
D.	D
Answer» B. B

231.	If Δ is the angle of deflection of a simple curve of radius R, the distance between the mid-point of the curve and long chord, is
A.	A
B.	B
C.	C
D.	D
Answer» E.

232.	If Δ is the angle of deflection of a simple curve of radius R, the length of the curve is :
A.	A
B.	B
C.	C
D.	D
Answer» C. C

233.	Accidental or compensating errors of length L are proportional to
A.	A
B.	B
C.	C
D.	D
Answer» C. C

234.	If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula,
A.	A
B.	B
C.	C
D.	D
Answer» B. B

235.	The following is the conventional sign of
A.	temple
B.	mosque
C.	idgah
D.	church
Answer» B. mosque