Deck 12: Surveying and Measurement Techniques: Part B

Question 1

It is more convenient and gives better results while measuring horizontal distance

A)down the hill
B)up the hill
C)in plane areas

Answer 1

down the hill

Question 2

The true or geographical meridiams through the various stations

A)are parallel
B)converge to the poles
C)converge from north pole to south pole
D)converge from south pole to north pole

Answer 2

converge to the poles

Question 3

The angle of intersection of the horizon glass and index glass in an optical square is

A)30°
B)45°
C)60°
D)75°

Answer 3

45°

Question 4

The power of a telescope to form distinguishable images of objects separated by small angular distance is called its

A)definition
B)brightness
C)sensitivity
D)resolving power

Question 5

The method of plane tabling commonly used for establishing the instrument stations only, is a

A)method of radiation
B)method of intersection
C)method of traversing
D)method of resection

Question 6

In an optical square, the angle between the first incident ray and the last reflected ray is

A)60°
B)90°
C)120°
D)150°

Question 7

The process of turning the telescope of a theodolite over its supporting axis through 180° in a vertical plane, is called

A)transiting
B)reversing
C)plunging
D)any one of these

Question 8

Which of the following statement is correct?

A)In levelling, the effect of curvature is to decrease the staff reading.
B)The effect of refraction in levelling is to increase the staff reading.
C)The combined effect of curvature and refraction in levelling is to increase the staff reading.
D)all of the above

Question 9

The method of reiteration of measuring horizontal angles is generally preferred when several angles are to be measured at a particular station.

Question 10

The projection of a traverse line on a line perpendicular to the meridian is known as

A)latitude of the line
B)departure of the line
C)bearing of the line
D)co-ordinate of the line

Question 11

When the cross-hairs are not clearly visible,

A)the cross-hairs should be adjusted
B)the eye-piece should be focussed
C)the objective should be focussed
D)the parallex should be removed

Question 12

The angle between the back tangent and forward tangent of a curve is known as

A)deflection angle
B)central angle
C)angle of intersection
D)none of these

Question 13

The lines passing through points at which the magnetic declination is equal at a given time are called

A)isogonic lines
B)agonic lines
C)isoclinic lines
D)none of these

Question 14

A plumb bob is required

A)when measuring distances along slopes in a hilly country
B)for accurate centering of a theodolite over a station mark
C)for testing the verticality of ranging poles
D)all of the above

Question 15

The ratio of the focal length of the objective to that of an eye-piece of a telescope is called its

A)definition
B)brightness
C)sensitivity
D)magnification

Question 16

The levelling should always commence from a temporary bench mak and end on a permanent bench mark.

A)Correct
B)Incorrect

Question 17

The obstacle, which obstructs vision but not chanining, is a

A)river
B)pond
C)hill
D)all of these

Question 18

In plane surveying,

A)The curvature of the earth is taken into consideration
B)the surveys extend over small areas
C)the surveys extend over large areas

Question 19

Chain surveying is most suitable when

A)area to be surveyed is small
B)ground is fairly level and open with simple details
C)plans are required on a large scale
D)all of the above

Question 20

The lines of earth's magnetic field run from

A)south to north
B)north to south
C)east to west
D)west to east

Question 21

The representative fraction 1 / 250° means that the scale is

A)1 cm = 0.25 m
B)1 cm = 2.5 m
C)1 cm = 25 m
D)1 cm = 250°m

Question 22

In a field book, the booking is commenced at the bottom of a page and worked upwards.

Question 23

A deflection angle in a traverse is equal to the

A)difference between the included angle and 180°
B)difference between 3° and the included angle
C)sum of the included angle and 180°
D)none of the above