Deck 18: Surveying Terminology and Methods

Question 1

The reduced level of a point on the ground is called

A)spot level
B)spot height
C)either (a) or (b)
D)none of these

Answer 1

either (a) or (b)

Question 2

If a chain is used at a temperature

A)equal to
B)lower than
C)higher than

Answer 2

higher than

Question 3

The curve of varying radius is known as

A)simple curve
B)compound curve
C)reverse curve
D)transition cruve

Answer 3

transition cruve

Question 4

Two theodolite method of setting out a curve involves

A)linear measurements only
B)angular measurements only
C)both linear and angular measurements
D)none of these

Question 5

A fixed point of reference of known elevation is called

A)change point
B)station point
C)bench mark
D)datum

Question 6

The correction to the measured length will be negative when the chain is held on the ground sloping upwards.

Question 7

When the object lies on the left hand side of the chain line, then while taking offset with an optical square, it is held in

A)left hand upside down
B)right hand upside down
C)left hand upright
D)right hand upright

Question 8

A method of differential levelling is used in order to find the difference in elevation between two points when

A)they are too far apart
B)there are obstacles between them
C)the difference in elevation between them is too great
D)all of the above

Question 9

A metallic tape is made of an alloy of nickel and steel.

Question 10

When a staff is sighted through the telescope, a certain length of staff is intercepted by the stadia lines. The staff intercept varies with the distance at which the staff is held.

Question 11

With a simple vernier, readings can be taken in one direction only.

Question 12

In railway and highway works, the method of measuring the

A)direct angles
B)deflection angles

Question 13

The contour interval of any survey is inversely proportional to the scale of the map.

A)Agree
B)Disagree

Question 14

The angle of field of the telescope

A)is independent of the size of the object galss
B)increases as the size of the eye piece increases
C)decreases as the distance between eye piece and object increases
D)all of the above

Question 15

For accurate work, the lengths of back sight and fore sight are kept unequal.

A)Agree
B)Disagree

Question 16

The plane table surveying is

A)most suitable for preparing small-scale maps
B)particularly advantageous in magnetic areas
C)less costly than a theodolite survey
D)all of the above

Question 17

The line in which the plane passing through the given point and the north and south poles intersects the surface of the earth, is called

A)arbitrary meridian
B)magnetic meridian
C)true meridian
D)none of these

Question 18

A scale used for measuring fractional parts of the smallest division of the main scale is known as vernier scale.

A)Correct
B)Incorrect

Question 19

To the sum of the first and last ordinates, add twice the sum of the remaining odd ordinates and four times the sum of all the even ordinates. The total sum thus obtained is multiplied by one-third of the common distance between the ordinates and the result gives the required area. This rule of finding the area is called.

A)mid-ordinate rule
B)trapezoidal rule
C)average ordinate rule
D)Simpson's rule

Question 20

A surface which is normal to the direction of gravity at all points, as indicated by a plumb line, is known as

A)datum surface
B)leverl surface
C)horizontal surface
D)vertical surface

Question 21

The error in measured length due to sag of chain or tape is known as

A)positive error
B)negative error
C)compensating error
D)instrumental error

Question 22

When the latitudes and departures are so adjusted that the algebraic sum of the latitudes and departures are equal to zero, the operation is called

A)balancing the latitude
B)balancing the departure
C)balancing the traverse
D)none of these

Question 23

In plane tabling, the instrument used to measure horizontal and vertical distances directly, is known as

A)plane alidade
B)telescopic alidade
C)tacheometer
D)clinometer

Question 24

When the whole circle bearing of a traverse line is between 90° and 180°, then

A)the latitude is positive and departure is negative
B)the departure is positive and latitude is negative
C)both the latitude and departure are positive
D)both the latitude and departure are negative

Question 25

Which of the following statement is wrong?

A)A series of closed contour lines on the map indicates a depression if the higher values are inside
B)A series of closed contour lines on a plane indicates a hill if the higher values are outside.
C)The uniformly spaced contour lines indicates a plane surface.
D)all of the above