0% 0 votes, 0 avg 15 Quiz Duration : 5 Minutes.Quiz will automatically submit after time elapses. Ooops Time is up.Try again next week Created on August 15, 2020Land Surveying BASIC CONCEPTS OF SURVEYING Basic Concepts of Surveying. If you are attempting this Quiz Session to stand a chance to win the weekly prizes we recommend that you first read and understand our quiz guideline.Follow all the steps outlined in the Guide Line in order to stand a better chance to win.Promotion is only valid to people living in Zimbabwe at the moment. Please bare with us as we sort out the logistics for all parts of the region.This week's prize stands at 40ZWL Worth of AirtimeThis Week's Quiz:contains 20 questionsacceptable pass-mark stands at 95% (meaning you only need to fail at most 1 question in order to compete for the Prize)is based on the basic concepts and principles of Surveyinghas a duration of 5 minutes in total (when the time is up the clock will stop and that is the end)and lastly, you can only attempt this session once.Good Luck 1 / 20 Refraction correction completely eliminates curvature correction partially eliminates curvature correction adds to the curvature correction has no effect on curvature correction 2 / 20 If the length of a chain is found to be short on testing, it can be adjusted by straightening the links removing one or more small circular rings closing the joints of the rings if opened out all of the above 3 / 20 The prime vertical passes through The east point of the horizon The west point of the horizon The zenith point of the observer All the above 4 / 20 The principal plane contains Nadir point Iso-centre Principal point All the above 5 / 20 The declination and right ascension of the sun becomes 23°27`S and 270° respectively on March 21 June 21 September 21 December 22 6 / 20 The horizontal angle between the true meridian and magnetic meridian at a place is called azimuth declination local attraction magnetic bearing 7 / 20 Closed contours, with higher value inwards, represent a depression hillock plain surface none of the above 8 / 20 The declination and right ascension of the sun becomes 23° 27`N and 90° respectively on March 21 June 21 September 21 December 22 9 / 20 In the double application of principle of reversion, the apparent error is equal to true error half the true error two times the true error four times the true error 10 / 20 The solar tidal force divided by lunar tidal force is 1/3 1/2 3/4 5/4 11 / 20 A level line is a horizontal line line parallel to the mean spheriodal surface of earth line passing through the center of cross hairs and the center of eye piece line passing through the objective lens and the eye-piece of a dumpy or tilting level 12 / 20 The parallax equation Δp = BmΔh/H - h is applicable to entire overlap of the photographs only if parallax is measured Normal to base line Parallel to base line Both (A) and (B) Neither (A) nor (B) 13 / 20 Latitude of the observer's position is equal to altitude of North pole Pole star Celestial pole All of the above 14 / 20 The number of horizontal cross wires in a stadia diaphragm is one two three four 15 / 20 Accidental errors... Do not follow any definite mathematical law Cannot be removed by applying corrections to the observed values Are generally small All of the above 16 / 20 The relation between the air base (B), photographic base (b), flying heigh (H) and the focal length (f) of a vertical photograph, is B = bH/f B =f/bH B = b/fH B = H/bf 17 / 20 Pick up the correct statement from the following. The difference between the longitudes of the places is obtained. By subtracting their longitudes if places are in the same hemisphere By adding their longitudes if places are in the different hemispheres By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres All the above 18 / 20 The average eye base is assumed as 58 mm 60 mm 62 mm 64 mm 19 / 20 23 cm x 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents 1 m 2 m 4 m 8 m 20 / 20 The following sights are taken on a "turning point" foresight only backsight only foresight and backsight foresight and intermediate sight Your score is The average score is 53% LinkedIn Facebook Twitter 0% Kindly rate this Quiz Session Send feedback Share this:TwitterFacebook Related Articles 2020-08-16
