Page 179 - 4670
P. 179

A:  north,  visible,  expensive,  much,  short,  maximum,  vertical,
                  liquid, elevation, simple, above;
                        B:  little,  south,  minimum,  solid,  invisible,  horizontal,  below,
                  slope, difficult, long, cheap.


                        Task  2.  Choose  the  correct  preposition.  Translate  the

                        sentences into Ukrainian.

                        1. Levelling  and  surveying  methods  are  also  used  for/with
                  measurements of river channel and lake configurations.
                        2. Change points are points of measurement which are used to/for
                  carry the measurements forward in a run.

                        3. Dumpy levels are more basic levels often used in/at construction
                  work.
                        4. A  level  is  basically  a  telescope  attached  to/at  an  accurate

                  levelling  device,  set  upon  a  tripod  so  that  it  can  rotate  horizontally
                  through 360°.
                        5. A  modern  theodolite  consists  of/with  a  movable  telescope
                  mounted  within  two  perpendicular  axes  –  the horizontal  or trunnion

                  axis, and the vertical axis.


                        Task 3. Choose the correct alternative:

                        1. The points to be observed must/have to be below the level of
                  the instrument, but not lower than the height of the staff.
                        2. All  working  staff  should/ought  be  thoroughly  familiar  with

                  levelling theory and practice.
                        3. At  hydrological  stations  rock  bolts  driven  into  bedrock  or
                  concrete structures can/have be used.

                        4. The  level,  its  tripod,  the  staff  and  the  staff  bubble  have  to
                  /should to be kept correctly calibrated, and be used and stored with
                  care.
                        5. These scales can/must vary in pattern and graduation.

                        6. Automatic levels must not/have not be carried in a vertical or
                  near-vertical position.  It can/shall cause a damage.
                        7. All  levelling  can/should  be  booked  in  either  level  books  or

                  levelling sheets in order to have all the records needed.
                        Task  4.  Transform  the  sentences  from  direct  into  indirect
                        speech:

                        1. “A reduced level is the vertical distance between a survey point

                  and the adopted level datum.” – the surveyor said.
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