In the long and short wall method of estimation, the length of the lo...
For finding out the length of a short wall or cross wall subtract from the centre length, so the one breadth of the wall, which gives the length of the short wall (in-to-in) (instead of adding). Note: The length of the longwall usually decreases from earthwork to brickwork, and the length of the short wall is increased.
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In the long and short wall method of estimation, the length of the lo...
The long and short wall method of estimation is a commonly used technique in construction to estimate the quantities of materials required for building walls. It involves measuring the length and height of walls to calculate the total area and volume.
In this method, the length of the longwall refers to the center distance between the walls. This means it represents the distance between the two parallel walls that are being constructed. The longwall is measured from the center point of one wall to the center point of the other wall.
The correct answer to the question is option 'B' - Half breadth of the wall on each wall. This means that the length of the longwall is equal to half the width of the wall on each side.
To understand this further, let's break down the options:
a) Breadth of the wall: This refers to the width of the wall. However, the length of the longwall is not equal to the width of the wall.
b) Half breadth of wall on each wall: This option is correct. It means that the length of the longwall is equal to half the width of the wall on each side. This measurement helps in determining the center distance between the walls accurately.
c) One-fourth breadth of wall on each side: This option is incorrect. One-fourth of the width of the wall on each side does not accurately represent the length of the longwall.
d) None of the above: This option is incorrect as option 'B' is the correct answer.
In conclusion, the length of the longwall in the long and short wall method of estimation is equal to half the breadth of the wall on each side. This measurement is important for accurate estimation of materials required for wall construction.