Q. Which of the following is an instrumental error?

View solution

Q. Which of the following is not a natural error?

View solution

Q. Which of the following is not a principle source of error in levelling?

View solution

Q. Errors in sighting is _________

View solution

Q. Wind vibrations are natural errors.

View solution

Q. When distances are small which of the following error is negligible?

View solution

Q. Due to refraction, staff reading decreases.

View solution

Q. The degree of precision does not depend upon the type of instrument.

View solution

Q. For a given instrument and atmospheric conditions, the precision depends upon the number of setups.

View solution

Q. The precision on plains will be less than that on hills.

View solution

Q. The degree of precision depends upon the skill of an observer.

View solution

Q. What is the error in feet for rough levelling for reconnaissance or preliminary surveys?

View solution

Q. What is the error in feet for ordinary levelling for location and construction surveys?

View solution

Q. What is the error in feet for accurate levelling for principal benchmarks or for extensive surveys?

View solution

Q. What is the error in feet for precise levelling for benchmarks of widely distributed points?

View solution

Q. What is the error in mm for rough levelling for reconnaissance or preliminary surveys?

View solution

Q. What is the error in mm for ordinary levelling for location and construction surveys?

View solution

Q. What is the error in mm for accurate levelling for principal benchmarks or for extensive surveys?

View solution

Q. What is the error in mm for precise levelling for benchmarks of widely distributed points?

View solution

Q. Which type of levelling is done on the phenomenon, the difference in elevation between two points is proportional to the difference in atmospheric pressure at these points?

View solution