Designation of a curve is made by :

angle subtended by a chord of any length

angle subtended by an arc of specified length

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 as well as vertical

In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to

ease of reduction of observations

minimum effect of careless holding on the result

The formula for the horizontal distances for inclined sights, on staff held normalis s cos θ + (f + d) cos θ ± h sin θ

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

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.

For locating a distant object visible from two transit stations, the method usually preferred to, is

distance from two transit stations

Angles and distances from transit stations

Angles from two transit stations

distance from two transit stations

Angle from one transit station and distance from the other.

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

While working on a plane table, the correct rule is :

Intersection should be obtained by actually drawing second rays

Draw continuous lines from all instrument stations

Draw short rays sufficient to contain the points sought

Intersection should be obtained by actually drawing second rays

Take maximum number of sights as possible from each station to distant objects.

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.

When the bubble of the level tube of a level, remains central

axis of the telescope is horizontal

line of collimation is horizontal

geometrical axis of the telescope is horizontal.

The prismatic compass and surveyor’s compass

oth give QB of a line and WCB of a line

ive whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively

oth give QB of a line and WCB of a line

Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?

easuring angle at one station and distance from other

easuring angle and distance from one transit station

easuring angles to the point from at least two stations

easuring angle at one station and distance from other

easuring distance from two points on traverse line

In the prismatic compass

he graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction

he magnetic needle moves with the box

he line of the sight does not move with the box

he magnetic needle and graduated circle do not move with the box

he graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction

For which of the following permanent adjustments of theodolite, the spire test is used ?

djustment of altitude bubble and vertical index frame

492 + Mcqs in Surveying in Civil Engineering Page 5 McqOptions

201.	If R is the radius of the main curve, θ the angle of deflection, S the shift and L the length of the transition curve, then, total tangent length of the curve, is
A.	(R - S) tan θ/2 - L/2
B.	(R + S) tan θ/2 - L/2
C.	(R + S) tan θ/2 + L/2
D.	(R - S) tan θ/2 + L/2
E.	(R - S) cos θ/2 + L/2
Answer» D. (R - S) tan θ/2 + L/2

202.	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.	Δ
E.	2 Δ.
Answer» D. Δ

203.	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.

204.	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.	.
Answer» E.

205.	If Δ is the angle of deflection of a simple curve of radius R, the length of its long chord, is
A.	R cos
B.	2R cos
C.	R sin
D.	2R sin .
Answer» E.

206.	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.	.
Answer» C. [C].

207.	Designation of a curve is made by :
A.	angle subtended by a chord of any length
B.	angle subtended by an arc of specified length
C.	radius of the curve
D.	curvature of the curve.
Answer» D. curvature of the curve.

208.	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
A.	staff normal
B.	staff vertical
C.	staff normal as well as vertical
D.	none of these.
Answer» B. staff vertical

209.	If θ is the vertical angle of an inclined sight, δ is the angle of tilt of the staff, the error
A.	[A].
B.	[B].
C.	[C].
D.	none of these.
Answer» B. [B].

210.	In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to
A.	ease of reduction of observations
B.	facility of holding
C.	minimum effect of careless holding on the result
D.	none of these.
Answer» D. none of these.

211.	The formula for the horizontal distances for inclined sights, on staff held normalis s cos θ + (f + d) cos θ ± h sin θ
A.	minus sign is used for angle of depression
B.	plus sign is used for angle of depression
C.	minus sign is used for angle of elevation
D.	non of these.
Answer» B. plus sign is used for angle of depression

213.	In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in
A.	north-west quadrant
B.	north east quadrant
C.	south-east quadrant
D.	south-west quadrant.
Answer» B. north east quadrant

217.	The zero of the graduated circle of a prismatic compass is located at
A.	north end
B.	east end
C.	south end
D.	west end.
Answer» D. west end.

218.	If whole circle bearing of a line is 120°, its reduced bearing is
A.	S 20° E
B.	S 60° E
C.	N 120° E
D.	N 60° E.
Answer» C. N 120° E

222.	Two hill tops A and B 20 km apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB
A.	passes clear of hill top C
B.	passes below the hill top C
C.	grazes the hill top C
D.	none of these.
Answer» C. grazes the hill top C

212.	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 constants by sin θ
E.	the multiplying constant by cos2 θ and additive constant by cos θ.
Answer» F.

214.	For locating a distant object visible from two transit stations, the method usually preferred to, is
A.	Angles and distances from transit stations
B.	Angles from two transit stations
C.	distance from two transit stations
D.	Angle from one transit station and distance from the other.
Answer» C. distance from two transit stations

215.	The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as
A.	traverse leg
B.	a base
C.	traverse base
D.	all the above.
Answer» D. all the above.

216.	If the whole circle bearing of a line is 180°, its reduced bearing is
A.	S 0° E
B.	S 0° W
C.	S
D.	N.
Answer» D. N.

219.	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
E.	both (c) and (d).
Answer» E. both (c) and (d).

220.	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.
Answer» C. Intersection should be obtained by actually drawing second rays

221.	For orientation of a plane table with three points A, B and C, Bessel's drill is
A.	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
B.	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
C.	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
D.	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.
Answer» E.

223.	Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves
A.	embankment on the centre line
B.	excavation on the centre line
C.	earth work on the centre line
D.	none of these.
Answer» C. earth work on the centre line

224.	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.	[A].
B.	[B].
C.	[C].
D.	.
Answer» B. [B].

225.	When the bubble of the level tube of a level, remains central
A.	line of sight is horizontal
B.	axis of the telescope is horizontal
C.	line of collimation is horizontal
D.	geometrical axis of the telescope is horizontal.
Answer» B. axis of the telescope is horizontal

Explore topic-wise MCQs in Civil Engineering.

If R is the radius of the main curve, θ the angle of deflection, S the shift and L the length of the transition curve, then, total tangent length of the curve, 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

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 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 its long chord, is

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

Designation of a curve is made by :

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

If θ is the vertical angle of an inclined sight, δ is the angle of tilt of the staff, the error

In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to

The formula for the horizontal distances for inclined sights, on staff held normalis s cos θ + (f + d) cos θ ± h sin θ

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

In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in

For locating a distant object visible from two transit stations, the method usually preferred to, is

The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as

If the whole circle bearing of a line is 180°, its reduced bearing is

The zero of the graduated circle of a prismatic compass is located at

If whole circle bearing of a line is 120°, its reduced bearing is

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

While working on a plane table, the correct rule is :

For orientation of a plane table with three points A, B and C, Bessel's drill is

Two hill tops A and B 20 km apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB

Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves

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

When the bubble of the level tube of a level, remains central

An angles of 45° with a chain line may be set out with

Accidental or compensating errors of length L are proportional to

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

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

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

If the length of a chain line along a slope of θ° is l, the required slope correction is

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

If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is

The correction to be applied to each 30 metre chain length along θ° slope, is

If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known

The prismatic compass and surveyor’s compass

If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will

Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?

The net ground area of a vertical photograph 20 cm × 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is

With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be

If two points differing by 1° of latitude and of the same longitude is 110 km apart on the earth, then two astronomical positions on the moon is about

The equation which is obtained by multiplying each equation by the coefficient of its unknowns and by adding the equations thus formed, is known as

The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is

If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is

In the prismatic compass

The process of turning the telescope about the vertical axis in horizontal plane is known as

If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be

For which of the following permanent adjustments of theodolite, the spire test is used ?

226.	An angles of 45° with a chain line may be set out with
A.	optical square
B.	open cross staff
C.	Fench cross staff
D.	prismatic square.
Answer» D. prismatic square.

227.	Accidental or compensating errors of length L are proportional to
A.	L
B.	L
C.	[C].
D.	1/L.
Answer» C. [C].

228.	Correction per chain length of 100 links along a slope of α radians, is
A.	100 α2
B.	100 α
C.	100 α3
D.	100 α-1.
Answer» C. 100 α3

229.	Correction per chain length of 100 links along a slope of α° is
A.	[A].
B.	[B].
C.	[C].
D.	1.5α3.
Answer» B. [B].

230.	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
A.	[A].
B.	[B].
C.	[C].
D.	.
Answer» B. [B].

231.	If the length of a chain line along a slope of θ° is l, the required slope correction is
A.	2l cos2 θ/2
B.	2l sin2 θ/2
C.	l tan2 θ/2
D.	l cos2 θ/2.
Answer» C. l tan2 θ/2

232.	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.	3
Answer» B. [B].

233.	If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
E.	.
Answer» B. [B].

234.	The correction to be applied to each 30 metre chain length along θ° slope, is
A.	30 (sec θ - 1) m
B.	30 (sin θ - 1) m
C.	30 (cos θ - 1) m
D.	30 (tan θ - 1) m
E.	30 (cot θ - 1) m.
Answer» B. 30 (sin θ - 1) m

235.	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
B.	double vernier
C.	retrograde vernier
D.	simple vernier.
Answer» D. simple vernier.