When the position of a point is to be located accurately by a perpendicular offset, the direction of perpendicular is set out by means of

Related MCQs

• When the position of a point is to be fixed most accurately, it should be located by oblique offsets.
• The instrument used for setting out an offset at a right angle, is called
• The adjustable cross-staff is used for setting out an offset
• For setting out an offset at an angle of 45?,
• The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be
• The point on which the instrument is set up, is called station point
• The allowable length of an offset depends upon the
• The mimiting length of the offset is
• When the object lies on the left hand side of the chain line, then while taking offset with an optical square, it is held in
• When the length of offset is 20 m, it is called