11. CAPTION : Chalked plumb line  will mark vertical line on wall when snapped lightly after pulling plumb line tight. 12. Inside the tower is an old-fashioned plumb line  with a weight and an electronic measuring device on the end. 13. If the notches corresponding to the plumb lines  matched on both sides, it showed that the beam was level. 14. This carried out the same task as the torquetum, but was calibrated with linear scales, read by plumb lines . 15. CAPTION : Chalked plumb line will mark vertical line on wall when snapped lightly after pulling plumb line  tight. 16. This weekend, the cozy house's interior resembles a tightly secured cat's cradle of plumb lines  and carpenters'levels on every mantel. 17. In the film, which is both comical and poetic, Lopez marks the leaves and drops plumb lines  from the fruit. 18. Golf architects and engineers drew new plumb lines  from the 11th tee, which was moved some 25 feet to the right. 19. The outer casing of the gyrocompass device is held in such a way that it remains aligned with the local plumb line . 20. Transit instruments are installed to be perpendicular to the local level ( which is a plane perpendicular to a plumb line  ).