Construction Measurement Accuracy and Metric Units
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Questions and Answers

Accuracy in measurement is very important and it depends on the prevailing rate of the material (itemwise) and the unit of payment.

True (A)

The higher the rates, the greater should be the accuracy with which the quantities are calculated.

True (A)

The dimensions should be accurate especially when the rates are high and are to be paid on per unit basis.

True (A)

Quantities in such cases should be worked out upto atleast two places of decimal.

<p>True (A)</p> Signup and view all the answers

In case, where the rates are low and paid for percent to percentage unit accuracy to perfection may not be needed.

<p>True (A)</p> Signup and view all the answers

In case of wall, where masonry is paid per cubic metre, a little difference in measurement does not make much difference in total amount.

<p>False (B)</p> Signup and view all the answers

In case of width or thickness of wall every small deviation from the actual measurement can make a considerable difference to the total amount.

<p>True (A)</p> Signup and view all the answers

So, it becomes necessary to take such measurements accurate upto two places of decimal.

<p>True (A)</p> Signup and view all the answers

Practically, dimensions must be measured to the nearest cm (0.01 m) areas should be calculated to the nearest 0.01 m^3.

<p>True (A)</p> Signup and view all the answers

It is always better to take the thickness of slabs, partitions etc. and sectional dimensions of columns, pillars, beams etc. to the nearest half centimetre (0.005 m).

<p>True (A)</p> Signup and view all the answers

The principle for dimensions and measurements is to use millimetre (mm) for very minute dimensions, centimetre (cm) for small dimensions and in case of large dimensions metre (m) should be used.

<p>True (A)</p> Signup and view all the answers

Distances are generally measured in kilometres (km).

<p>True (A)</p> Signup and view all the answers

The dimensions for main items of various materials or jobs for construction work as used in metric system are as the following:

<p>True (A)</p> Signup and view all the answers

What are the units of measurement for bricks, stone blocks, etc. in the metric system?

<p>All dimensions in cm.</p> Signup and view all the answers

What are the units of measurement for files, slates, wall board, glass panes, A.C. sheets, etc in the metric system?

<p>Length and breadth in cm or m. Thickness in mm.</p> Signup and view all the answers

What are the units of measurement of door, windows, etc. in the metric system?

<p>Height and breadth in cm or m.</p> Signup and view all the answers

What are the units of measurement of parts of door and windows as panels, shutters in the metric system?

<p>Length in m. and cross-sectional dimensions in cm or mm.</p> Signup and view all the answers

What are the units of measurement of timber in the metric system?

<p>Length and height in m. Thickness or breadth in cm.</p> Signup and view all the answers

What are the units of measurement of masonry (brickwork, stone masonry, etc.) in the metric system?

<p>Length and breadth in m. Thickness in cm.</p> Signup and view all the answers

Flashcards

Measurement Accuracy

The level of detail and precision required when taking measurements. It's important for accurate calculations and fair payment.

Metric System Units

The units used to measure lengths, areas, and volumes in the metric system. Common units include millimeters, centimeters, meters, and kilometers.

Millimeters (mm)

The smallest unit of measurement in the metric system, often used for very small dimensions.

Centimeters (cm)

A unit of measurement commonly used for moderate-sized dimensions, a bit larger than a millimeter.

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Meters (m)

The standard unit of measurement in the metric system, used for larger dimensions.

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Kilometers (km)

A large unit of measurement used for distances, particularly for large areas like cities or countries.

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Measurements to the Nearest Centimeter

The practice of measuring dimensions to the nearest centimeter (0.01 meters). This level of precision is usually sufficient for most construction work.

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Measurements to the Nearest 0.01 Square Meters

The practice of measuring areas to the nearest 0.01 square meters. This level of precision is important for calculating the amount of materials needed.

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Measurements to the Nearest 0.01 Cubic Meters

The practice of measuring volumes to the nearest 0.01 cubic meters. This level of precision is necessary for estimating the volume of concrete or other materials.

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Measurements to the Nearest Half Centimeter

The practice of measuring thicknesses of slabs, partitions, beams, and sectional dimensions of columns and pillars to the nearest half centimeter (0.005 meters).

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Material Quantity Calculation

The importance of accurate measurement for determining the quantity of materials needed for construction projects.

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Cost Implications of Measurement Accuracy

The impact of measurement accuracy on the overall cost of construction projects.

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Specific Measurement Units for Construction Materials

The practice of using specific measurement units for different construction materials. This ensures consistency and accuracy in calculations.

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Payment Rate and Unit of Measurement

The importance of considering the rate of payment and the unit of measurement when determining the level of accuracy needed.

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Percentage-Based Measurements

The use of percentage-based measurements for certain construction materials, especially when the rates are low.

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Minimal Impact of Discrepancies for Cubic Meter Payments

The concept that small measurement discrepancies have a minimal impact on the total cost when materials are paid per cubic meter.

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Significant Impact of Deviations for Width and Thickness

The concept that even small deviations in width or thickness measurements can significantly affect the total cost.

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Precise Measurements for Width and Thickness

The importance of using precise measurements for width and thickness to ensure accuracy in calculating the total amount of materials needed.

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Standard Measurement Precision

The practice of measuring dimensions to the nearest centimeter (0.01 m) for most construction materials.

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Importance of Accurate Measurements

The understanding that the accuracy of measurements directly affects the outcome of a construction project.

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Study Notes

Measurement Accuracy

  • Accuracy in measurement is crucial, especially when material costs are high, requiring precise calculation of quantities.
  • When rates are low, less precise measurements are acceptable.
  • Wall masonry (paid per cubic meter): slight measurement deviations have minimal impact on the total cost.
  • Width and thickness variations in walls will affect the total cost significantly

Metric System Units

  • Millimeters (mm) for very small dimensions
  • Centimeters (cm) for smaller dimensions
  • Meters (m) for larger dimensions
  • Kilometers (km) for distances

Dimensions for Construction Materials

| S.No. | Material | Dimensions |---|---| | 1 | Bricks, stone blocks | All dimensions in cm | 2 | Files, slates, wall board, glass panels, A.C sheets | Length and breadth in cm or m, Thickness in mm | 3 | Doors, windows | Height and breadth in cm or m | 4 | Door/Window parts (panels, shutters)| cm or mm, Length in m and cross-sectional dimensions in cm or mm. | 5 | Timber | Length in m and cross-sectional dimensions in cm or mm. | 6 | Masonry (brickwork, stone masonry) | Length and height in m, Thickness or breadth in cm | 7 | Cement concrete, lime concrete, R.C.C flooring | Length and breadth in m, Thickness in cm.

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Description

This quiz focuses on the importance of accuracy in measurement within the construction industry, highlighting how material costs can be influenced by slight deviations in measurement. It also covers the use of the metric system for various dimensions in construction materials, providing practical examples.

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