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

Accepted Answer

A

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

Accepted Answer

True or geographical meridians are imaginary lines that run from the North Pole to the South Pole, converging at both poles, which means they are not parallel but rather come closer together as they approach 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°

Accepted Answer

The angle of intersection of the horizon glass and index glass in an optical square is 45°, which allows for the reflection of light at a 90° angle, essential for the device's function in measuring angles or establishing right angles in surveying.

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

Accepted Answer

The ability of a telescope to form distinguishable images of objects that are close together in the sky, separated by small angular distances, is known as its resolving power. This characteristic determines the telescope's capability to reveal fine details and distinguish between objects that are closely spaced.

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

Accepted Answer

The answer of The method of plane tabling commonly used...

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°

Accepted Answer

An optical square is designed to measure right angles, so the angle between the first incident ray and the last reflected ray is 90°.

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

Accepted Answer

The answer of The process of turning the telescope of...

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

Accepted Answer

The answer of Which of the following statement is correct?
A)In...

Question 9

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

Accepted Answer

Reiteration is preferred for measuring multiple angles at a station because it enhances accuracy by averaging multiple measurements, reducing random errors.

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

Accepted Answer

The departure of a line refers to its east-west component when projected onto a line perpendicular to the meridian, essentially measuring its horizontal distance east or west from the north-south reference 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

Accepted Answer

When the cross-hairs are not clearly visible, the issue is typically with the eyepiece not being properly focused for the observer's vision. Adjusting the focus of the eyepiece can make the cross-hairs appear sharp and clear.

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

Accepted Answer

The angle between the back tangent and forward tangent of a curve is known as the angle of intersection. This angle is crucial in the geometric design of roads and railways where curves are involved.

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

Accepted Answer

Isogonic lines are the lines that connect points of equal magnetic declination on a map or chart. Magnetic declination is the angle between magnetic north and true north at a specific location, and it changes over time and with location. Isogonic lines help in navigation and compass use by indicating areas with the same magnetic declination.

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

Accepted Answer

A plumb bob is used in various surveying tasks including measuring distances along slopes, accurately centering instruments like theodolites over station marks, and ensuring the verticality of objects such as ranging poles.

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

Accepted Answer

The ratio of the focal length of the objective to that of an eyepiece in a telescope is called its magnification. This ratio determines how much larger the telescope makes objects appear.

Question 16

The levelling should always commence from a temporary bench mak and end on a permanent bench mark.
A)Correct
B)Incorrect

Accepted Answer

Levelling can commence and end on either temporary or permanent benchmarks, depending on the requirements of the survey. Permanent benchmarks are preferred for accuracy and reliability over time, but temporary benchmarks can be used for specific, short-term projects.

Question 17

The obstacle, which obstructs vision but not chanining, is a
A)river
B)pond
C)hill
D)all of these

Accepted Answer

A hill is a natural elevation of the earth's surface, which can obstruct vision due to its height and size, but it does not change its position or shape rapidly over time, unlike water bodies like rivers and ponds that can change their shape or course.

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

Accepted Answer

In plane surveying, the curvature of the earth is ignored because it deals with small areas where the earth's surface can be assumed to be flat for practical measurement accuracy.

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

Accepted Answer

Chain surveying is most suitable for small areas with fairly level and open ground, where plans are required on a large scale, making all of the provided options correct.

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

Accepted Answer

The lines of Earth's magnetic field run from the geographic North Pole to the geographic South Pole, which corresponds to the magnetic south to magnetic north direction.

Quiz 12: Surveying and Measurement Techniques: Part B

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

The true or geographical meridiams through the various stations

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

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

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

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

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

Which of the following statement is correct?

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

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

When the cross-hairs are not clearly visible,

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

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

A plumb bob is required

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

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

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

In plane surveying,

Chain surveying is most suitable when

The lines of earth's magnetic field run from