The following tacheometric observations were made from Station A to Station 1 and 2. INSTRUMENT STAFF AT ZENITH ANGLE STAFF READING AT STATION UPPER MIDDLE LOWER 1.388 1.665 A 1 96°55' 0.899 0.409 2 122°18' 1.350 1.032 The height of of the instrument above the ground was 1.52m. Take stadia interval factor and constant as 100 and 0, respectively. If the staff was inclined by 1° to the vertical, solve for the following a. Error in horizontal and vertical distances if the staff is inclined towards the instrument for the line A-1.

The following tacheometric observations were made from Station A to Station 1 and 2. INSTRUMENT STAFF AT ZENITH ANGLE STAFF READING AT STATION UPPER MIDDLE LOWER 1.388 1.665 A 1 96°55' 0.899 0.409 2 122°18' 1.350 1.032 The height of of the instrument above the ground was 1.52m. Take stadia interval factor and constant as 100 and 0, respectively. If the staff was inclined by 1° to the vertical, solve for the following a. Error in horizontal and vertical distances if the staff is inclined towards the instrument for the line A-1.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.

Question

Express your answers in four decimal Places.

The following tacheometric observations were made from Station A to Station 1 and 2.
INSTRUMENT
STAFF AT
ΖENITH ANGE
STAFF READING
AT STATION
UPPER
MIDDLE
LOWER
96°55'
122°18'
A
1
1.388
0.899
0.409
1.665
1.350
1.032
The height of of the instrument above the ground was 1.52m. Take stadia interval factor and
constant as 100 and 0, respectively. If the staff was inclined by 1° to the vertical, solve for the
following
a. Error in horizontal and vertical distances if the staff is inclined towards the instrument for
the line A-1.
b. Error in horizontal and vertical distances if the staff is inclined towards the instrument for
the line A-2.
c. Ifthe elevation of point 1 is 115.673m, determine the correct elevation of point B.

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