The Ratio of Heat Flow Q₁/Q₂ from Two Walls of Same

question 10

Multiple Choice

The ratio of heat flow Q₁/Q₂ from two walls of same thickness having their thermal conductivities as K₁ - 2K₂ will be

• A)I
• B)0.5
• C)2
• D)0.25
• E)4.0

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Definitions:

Net Income

The total profit of a company after all expenses and taxes have been deducted from total revenues.

Margin of Safety

The difference between actual or projected sales and the break-even point, indicating the cushion a business has before it incurs a loss.

Variable Expenses

Expenditures that change in direct correlation with production levels or the quantity of sales, including costs like raw materials and direct labor.

Fixed Expenses

Costs that do not change regardless of the level of production or business activity.