Unlike Gravel and Sand, Whose Particles Are Roughly the Same

question 37

Essay

Unlike gravel and sand, whose particles are roughly the same size in all three directions (i.e., equidimensional), clay particles are flat (plate- like or flakes). This particle shape makes clay an unstable soil that swells with the addition of water and shrinks when dry. Explain the cause of this phenomenon.

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Definitions:

Direct Labour

The wages paid to workers directly involved in the production of goods or services.

Labour Efficiency Variance

The difference between the budgeted or standard labor hours expected for production and the actual labor hours used.

Standard Labour Hours

The number of labor hours predetermined as necessary to complete a job or task under normal conditions.

Actual Labour Hours

The actual amount of labor time spent on a particular job or task, measured in hours.