Basic Civil Engineering Questions and Answers – Contouring
This set of Basic Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Contouring”.
1. Contours can be found in a __________ map.
a) Political
b) Topographical
c) Physical
d) Thematic
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2. Contour Maps are not mandatory in civil engineering projects like road works, dams, canals,
etc.
a) True
b) False
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a) 5
b) 3
c) 2
d) 4
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a) 3
b) 4
c) 2
d) 6
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5. The commonly used squares in method of square is:
a) 10m x 10m to 5m x 5m
b) 10m x 10m to 15m x 15m
c) 5m x 5m to 20m x 20m
d) 5m x 5m to 10m x 15m
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a) Arithmetic calculation
b) Using measuring tapes
c) Taking pictures of area
d) Using a theodolite
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a) True
b) False
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a) Radial curve
b) French curve
c) C-curve
d) Inverted curve
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a) V-shaped
b) U-shaped
c) L-shaped
d) S-shaped
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a) Ridge line
b) Dam line
c) Catchment line
d) Watershed line
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1. Contours can be found in a __________ map.
a) Political
b) Topographical
c) Physical
d) Thematic
View Answer
Answer: b
Explanation: These are imaginary lines, which passes through points of same or equal elevations. These are found in topographical maps to represent features like mountains, valleys, etc.
Explanation: These are imaginary lines, which passes through points of same or equal elevations. These are found in topographical maps to represent features like mountains, valleys, etc.
etc.
a) True
b) False
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Answer: b
Explanation: To identify a suitable site for these projects, to study the nature of ground and slopes and to make an estimate for earth work, a contour map of that region is required.
3. How many methods of contouring are present?Explanation: To identify a suitable site for these projects, to study the nature of ground and slopes and to make an estimate for earth work, a contour map of that region is required.
a) 5
b) 3
c) 2
d) 4
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Answer: c
Explanation: There are 2 methods of contouring: direct and indirect. In direct method, the points of elevation are located physically and then plotted on the map. Indirect method uses contouring with the help of grids.
4. Indirect methods uses how many methods?Explanation: There are 2 methods of contouring: direct and indirect. In direct method, the points of elevation are located physically and then plotted on the map. Indirect method uses contouring with the help of grids.
a) 3
b) 4
c) 2
d) 6
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Answer: a
Explanation: The three methods are: method of square (area divided into squares and grid point taken), method of cross-section (cross sectional points taken) and tacheometric method (adopted for very steep hills).
Explanation: The three methods are: method of square (area divided into squares and grid point taken), method of cross-section (cross sectional points taken) and tacheometric method (adopted for very steep hills).
a) 10m x 10m to 5m x 5m
b) 10m x 10m to 15m x 15m
c) 5m x 5m to 20m x 20m
d) 5m x 5m to 10m x 15m
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Answer: c
Explanation: The size of the square varies from 5m x 5m to 20m x 20m. These grid points are found by levelling and then plotted on drawing sheets.
6. Which of the below methods is used for interpolating contour points between 2 points?Explanation: The size of the square varies from 5m x 5m to 20m x 20m. These grid points are found by levelling and then plotted on drawing sheets.
a) Arithmetic calculation
b) Using measuring tapes
c) Taking pictures of area
d) Using a theodolite
View Answer
Answer: a
Explanation: There are 3 different ways to interpolate contour points between 2 points; arithmetic calculation, estimation and graphical or mechanical method.
7. The contour interval is the same for all purposes.Explanation: There are 3 different ways to interpolate contour points between 2 points; arithmetic calculation, estimation and graphical or mechanical method.
a) True
b) False
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Answer: b
Explanation: The interval is kept as 2m for large projects like highways, railways, etc and 0.5m for earth work, building sites, etc.
8. The curves used for drawing lines between points in a contour line is:Explanation: The interval is kept as 2m for large projects like highways, railways, etc and 0.5m for earth work, building sites, etc.
a) Radial curve
b) French curve
c) C-curve
d) Inverted curve
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Answer: b
Explanation: The contour points are first located. Corresponding points are joined by a smooth line and for curves, a French curve is used.
9. Which shaped lines indicate presence of a ridge?Explanation: The contour points are first located. Corresponding points are joined by a smooth line and for curves, a French curve is used.
a) V-shaped
b) U-shaped
c) L-shaped
d) S-shaped
View Answer
Answer: b
Explanation: The contour line with U-shape, which has convexity towards a lower ground shows the presence of a ridge.
10. The line which separates the catchment basin from the rest of the area is:Explanation: The contour line with U-shape, which has convexity towards a lower ground shows the presence of a ridge.
a) Ridge line
b) Dam line
c) Catchment line
d) Watershed line
View Answer
Answer: d
Explanation: The area where rain water drains into the river is the catchment area of the river. The watershed line is then marked. The area inside this line is measured in order to study flood levels.
Explanation: The area where rain water drains into the river is the catchment area of the river. The watershed line is then marked. The area inside this line is measured in order to study flood levels.
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