6The sum of interior angles of a closed traverse with n sides is:A(2n − 4) × 90°B180°Cn × 90°D(n − 2) × 360°View AnswerDiscussWorkspaceReportSaveEasy
7Levelling is used to find:ADifferences in elevation between pointsBMagnetic bearingsCAreas onlyDHorizontal anglesView AnswerDiscussWorkspaceReportSaveEasy
8A theodolite's horizontal circle measures:AVertical heights directlyBDistancesCHorizontal anglesDBearings only by magnetView AnswerDiscussWorkspaceReportSaveEasy
9Reduced level (RL) is the elevation of a point with respect to:AA datum (usually mean sea level)BThe instrumentCThe groundDThe previous pointView AnswerDiscussWorkspaceReportSaveEasy
10Closed traverse error is checked because:AThe traverse should return to its starting pointBAngles must be zeroCLines must be curvedDDistances must be equalView AnswerDiscussWorkspaceReportSaveEasy