Question 1
By which of the following step, Independent co-ordinate can be obtained?
A. ∑L + ∑D
B. ∑L – ∑D
C. ∑L2 + ∑D2
D. ∑L2 – ∑D2
View Answer
Answer: Option A
Explanation:
The total latitude and departure of any point with respect to a common origin is known as independent co-ordinate. The independent co-ordinates of any point may be obtained by adding algebraically the latitudes and the departure of the lines between the point and origin.
Question 2
Co ordinate length measured parallel to an assumed meridian direction may be defined as _________
A. Latitude of a survey line
B. Departure of survey line
C. Length of survey line
D. Slope of survey line
View Answer
Answer: Option A
Explanation:
The latitude of the survey line may be defined as its coordinate length measured parallel to an assumed meridian direction. True north or magnetic north or any other reference direction.
Question 3
Consecutive co-ordinates are also known as __________
A. Total co-ordinates
B. Independent co-ordinates
C. Dependent co-ordinates
D. Departure co-ordinates
View Answer
Answer: Option C
Explanation:
Latitude and departure co-ordinates of any point with reference to the preceding point are equal to the latitude and departure of the line joining the preceding point to the point under consideration. Such co-ordinates are known as consecutive co-ordinates or dependent co-ordinates.
Question 4
Departure can be given as __________
A. D = l cos θ
B. D = l tan θ
C. D = l cosec θ
D. D = l sin θ
View Answer
Answer: Option D
Explanation:
The formula for departure can be given as D = l sin θ and for latitude it is given as L = l cos θ. Where, l refers to length of line.
Question 5
Departure refers to __________
A. Co-ordinate length measured at right angles
B. Co-ordinate length measured at right angles to the meridian direction
C. Co-ordinate length measured parallel to the assumed meridian direction
D. Co-ordinate length measured parallel to the datum
View Answer
Answer: Option B
Explanation:
Departure is the Co-ordinate length measured at right angles to the meridian direction and latitude refers to the Co-ordinate length measured parallel to assume meridian direction.
Question 6
For calculating latitude and departure they must be converted into__________
A. Whole Circle Bearing system
B. Reduced Bearing system
C. True bearing system
D. Assumed bearing system
View Answer
Answer: Option B
Explanation:
For calculating the latitudes and departure of the traverse lines, it is essential to reduce the bearing in the Quadrantal or reduced bearing system.
Question 7
If l is the length of the line and angle made with y axis is y° then departure (D) of the line is ____
A. l cos y°
B. l sin y°
C. l tan y°
D. l cosec y°
View Answer
Answer: Option B
Explanation:
We know D/l = cos y °. Then D = l sin y°. Therefore latitude D = l cos y°.
Question 8
If l is the length of the line and angle made with y-axis is y° then latitude (L) of the line is ____
A. l cos y°
B. l sin y°
C. l tan y°
D. l cosec y°
View Answer
Answer: Option A
Explanation:
We know L/l = cos y °. Then L = l cos y°. Therefore latitude L = l cos y°.
Question 9
If the value of θ = 720 49ꞌ, find the value of departure for side having a length 300 m.
A. 286.17
B. 268.91
C. 286.61
D. 286.16
View Answer
Answer: Option C
Explanation:
We know that the value of departure can be given as D = l sin θ. On substitution of the values of θ and l we get,D = 300 * sin (720 49ꞌ) = 286.61 m.
Question 10
In which direction latitude of the line is negative?
A. North
B. South
C. East
D. West
View Answer
Answer: Option B
Explanation:
The latitude of the line is negative when measured southward. It is termed as southing.
Question 11
In which direction latitude of the line is positive?
A. North
B. South
C. East
D. West
View Answer
Answer: Option A
Explanation:
The latitude of the line is positive when measured northward. It is termed as northing.
Question 12
Latitude and Departure equations will never return positive values.
A. False
B. True
View Answer
Answer: Option A
Explanation:
Because a bearing angle never exceeds 90°, the Latitude and Departure equations will return positive values.Sin (0°) to Sin (90°) ranges from 0 to 1Cos (0°) to Cos (90°) ranges from 1 to 0The correct mathematical sign for the Latitude and Departure come from the bearing quadrant.
Question 13
The departure of the line is negative in east direction.
A. True
B. False
View Answer
Answer: Option B
Explanation:
The departure of the line is negative in westward. It is termed as westing.
Question 14
The departure of the survey line may be defined as its coordinate length at right angles to the meridian direction.
A. True
B. False
View Answer
Answer: Option A
Explanation:
The departure of the survey line may be defined as its co ordinate length measured at right angles to the meridian direction. The departure of the survey line is positive when measured eastward.
Question 15
The total latitude and departure of any point with respect to a common origin are known as dependent coordinates.
A. True
B. False
View Answer
Answer: Option B
Explanation:
The coordinates of transverse stations can be calculated with respect to a common origin. The total latitude and departure of any point with respect to a common origin are known as independent coordinates or total coordinates.
Question 16
The value of θ = 1620 49ꞌ in Reduced Bearing system can be represented as ____________
A. S1706ꞌE
B. S27026ꞌE
C. S7026ꞌE
D. S17026ꞌE
View Answer
Answer: Option D
Explanation:
Any angle in Whole Circle Bearing system can be transformed into reduced bearing system by using a relation, it can be given asR.B = 1800 – W.C.B which means R.B = 1800 – 162024ꞌ = 17026ꞌ = S17026ꞌE.In R.B system, the direction of the angle is also mentioned along with the value.
Question 17
Total co-ordinate point is referred as___________
A. Dependent co-ordinate point
B. Independent co-ordinate point
C. Consecutive co-ordinate point
D. Departure co-ordinate point
View Answer
Answer: Option B
Explanation:
The total latitude and departure of any point with respect to a common origin is known as independent co-ordinates or total co-ordinate of the point.
Question 18
Total latitude of end point of a transverse is equal to total latitudes of the first point of transverse plus the algebraic sum of all the latitudes.
A. True
B. False
View Answer
Answer: Option A
Explanation:
The independent coordinates of any point may be obtained by adding algebraically the latitudes and departure of the lines between that point and the origin.
Question 19
What will be the value of total co-ordinate of B, if it is initially assumed as 100 and N latitude at A is given as 192.96?
A. 292.96
B. 92.96
C. 229.69
D. 29.69
View Answer
Answer: Option A
Explanation:
The value of total co-ordinate can be given by adding the assumed value to the previously mentioned value i.e.Total co-ordinate + latitude at A = 100 + 192.96 = 292.96The total co-ordinate at B is given as 292.96.
Question 20
When measured towards southward, latitude is negative.
A. True
B. False
View Answer
Answer: Option A
Explanation:
Depending on the quadrant in which it lies, the latitude and departure were given signs. For latitude, it is taken as positive in north and negative towards south direction. Similarly, departure is positive when taken in east direction and negative when taken in west direction.