On a map, two consecutive contour lines have elevations of 120 m and 125 m. What does the difference of 5 m represent?
Correct answer: D. Vertical interval
- A. Horizontal equivalent
- B. Reduced distance
- C. Contour gradient
- D. Vertical interval
Explanation
The difference in elevation between consecutive contour lines is called the contour interval or vertical interval. Horizontal equivalent is the horizontal distance between contours measured along the steepest slope.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Surveying
Surveying covers measurement of distances, angles and elevations, traversing, levelling, contouring, plane table work, theodolites, total stations and basic photogrammetry. It includes error adjustment, coordinate calculations, area and volume determination, and the distinction between accuracy and precision, as well as between temporary and permanent adjustments.
Practise Surveying
77 free Surveying MCQs from Civil Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Civil Engineering questions like this
Civil Engineering is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Surveying questions
Which type of surveying error is caused by an incorrect instrument constant that affects observations in a consistent manner?
A survey line is 100 m long and has a bearing of N30°E. What are its approximate latitude and departure?
A line has a whole-circle bearing of 128°20′. What is the whole-circle bearing of its back bearing?
In plane table surveying, the radiation method is most suitable when the details are located:
What is the principal purpose of centring a theodolite during its temporary adjustment?
In aerial photogrammetry, parallax is primarily used to determine: