Civil Engineering All Engineering Career
Question 141
When several contours coincide, it indicates ?
When several contours coincide, it indicates:
A vertical cliff
In this case, the contours are so close together or overlap that they indicate a very steep or vertical slope, which is characteristic of a vertical cliff.
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Question 142
The horizontal distance between any two consecutive contours is called ?
The horizontal distance between any two consecutive contours is called the:
Horizontal equivalent
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Question 143
A curve of varying radius is known as ?
A curve of varying radius is known as a transition curve.
-
Transition curve: This curve gradually introduces curvature to a road or railway alignment, ensuring a smooth transition from a straight section to a circular curve. 1 Its radius continuously decreases from infinity at the tangent point to the desired radius of the circular curve. 2
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Question 144
Cumulative errors that occur in chaining are proportional to ?
Cumulative errors that occur in chaining are proportional to root L.
Where:
-
L is the length of the chain.
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Question 145
A stadia telescope, in a tacheometer, is fitted with ?
cross hairs only
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Question 146
The angle of intersection of the horizon glass and index glass in an optical square is ?
The angle of intersection between the horizon glass and the index glass in an optical square is:
45°
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Question 147
To the sum of the first and last ordinates, add twice the sum of the intermediate ordinates. The total sum thus obtained is multiplied by the common distance between the ordinates. One-half of this product gives the required area. This rule of finding the area is called ?
This rule of finding the area is called the:
Trapezoidal rule
The trapezoidal rule is a numerical method used to approximate the area under a curve. It involves adding the first and last ordinates, doubling the sum of the intermediate ordinates, multiplying by the common distance between the ordinates, and then taking half of that product to find the area.
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Question 148
Compensating errors that occur in chaining are proportional to ?
Compensating errors that occur in chaining are proportional to:
L\sqrt{L}L​
Compensating errors tend to cancel out over long distances, and their effect is proportional to the square root of the length L
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Question 149
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 ?
This rule of finding the area is called:
Simpson's rule
Simpson's rule is a method for approximating the area under a curve. It involves using the sum of the first and last ordinates, adding twice the sum of the odd ordinates, four times the sum of the even ordinates, and then multiplying the total by one-third of the common distance between the ordinates to calculate the area.
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Question 150
In an optical square, the angle between the first incident ray and the last reflected ray is ?
In an optical square, the angle between the first incident ray and the last reflected ray is:
90°
The optical square is designed to measure right angles (90°) by ensuring that the angle between the first incident ray and the last reflected ray is exactly 90°.
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