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4. There is a limit to/of the steadiness of the hand and the acuity
of the eye.
5. The process of/at getting from observations to coordinates
involves reductions of/from, and corrections to/with observed data.

6. It is important to understand the nature of/for the measurement
process.

Task 2. Choose the correct alternative:

1. Survey results can/may never be exactly true for a number of
reasons.
2. Effects on instruments and processes from such factors as

temperature, atmospheric pressure, humidity, etc. must/have be
measured if we want to get accurate results.
3. People must not/cannot perceive anything with exactness.

4. Negligence ought /can be defined as either deliberate or willful
deviation from accepted practices or adopted standards.
5. Mistakes in surveying may/should be large or small, positive or
negative.

6. Errors and mistakes ought/can be detected by repeating the
whole operation.

7. Every value to be recorded in the field shall/must be checked
by some independent field observation.
8. Accidental Errors may/must be positive and must/may change
sign.

9. All systematic errors that have/cannot be surely eliminated
must/have be evaluated and their relationship to the conditions that
cause them must be determined.

Task 3. Match the words in A with the words close in meaning
in B. Make up 5 sentences, using them.

A: accidental, large, exactness, observer, to occur, personal, to do,

instruments, simultaneously;
B: to take place, at the same time, individual, accuracy, random,
devices, to perform, surveyor, great.

Task 4. Open the brackets and use the verb in the Future

Simple Tense.

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