Surveying.L [Mapping] (L2) terminologies

Question 1

it is the process of determining the extent, size, or dimensions of a particular quantity in comparison to a given standard

Answer 1

measurement

Question 2

it is subject to the limitations of the
instrument used and inherent errors in the measurement process

Answer 2

surveying measurement

Question 3

it involves comparing the measured quantity with a standard measuring unit or units used for measuring that particular quantity

Answer 3

direct measurement

Question 4

it is made when it is not possible to directly apply a measuring instrument to the quantity being measured

Answer 4

indirect measurment

Question 5

-it is the international unit of linear
-proposedaround 1789 by French scientists seeking a universal system based on permanent natural standards

Answer 5

meter

Question 6

length of a step in walking; maybe measured from toe to toe or heel to heel

Answer 6

pace

Question 7

equivalent to two paces or double step

Answer 7

stride

Question 8

it is defined as the difference
between the true and measured values of a quantity, represents a deviation beyond the control of the operator

Answer 8

error

Question 9

it occur as inaccuracies in
measurements during a surveying
operation when the surveyor acts with carelessness, inattention, poor judgment, or improper execution

Answer 9

mistakes

Question 10

2 types of errors

Answer 10

systematic and accidental

Question 11

this type of error persists under constant and unchanged conditions, exhibiting the same sign and magnitude

Answer 11

systematic errors

Question 12

this type of error are purely random and can be positive or negative according to the laws of probability

Answer 12

accidental errors

Question 13

these errors stem from imperfections in the instruments used, resulting from faults in their construction or improper adjustments between different parts prior to their use

Answer 13

instrumental errors

Question 14

these errors result from variations in natural phenomena, such as
changes in magnetic declination, temperature, humidity, wind,
refraction, gravity, and curvature of the earth

Answer 14

natural errors

Question 15

these errors arise from limitations of the senses of sight, touch, and
hearing of the human observer, leading to erroneous or inaccurate
measurements

Answer 15

personal errors