In a Laboratory Test Run, the Rate of Drying Was

question 24

Multiple Choice

In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m² .s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m² /kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is

• A)2000
• B)4000
• C)5000
• D)6000

---

Definitions:

Variable Component

Variable Component refers to the part of total costs or expenses that changes in proportion to changes in the volume of activity or production levels.

Fixed Component

In cost accounting, this refers to costs that do not change with the level of production or sales, such as rent and salaries.

Variable Overhead Efficiency

Variable overhead efficiency refers to the effectiveness with which a company manages its variable manufacturing overhead costs in relation to its production activities.

Rate Variance

The difference between the expected or standard cost and the actual cost incurred for a particular expense, often analyzed in budgeting and cost management.