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The magnitude(N) of the resultant of the three coplanar forces, A, B, and C, is most nearly:

(A) 7.0

(B) 7.8

(C) 9.2

(D) 10.3

The Correct Answer

If a process is considered to be internally reversible and adiabatic, what can the change in entropy be assumed to be?

(A) Entropy becomes Infinite (B) Entropy increases (C) Entropy decreases (D) Entropy does not change

Correct Answer: D

A company can manufacture a product using hand tools. Tools will cost $1,000, and the manufacturing cost per unit will be $1.50. As an alternative, an automated system will cost $15,000 with a manufacturing cost per unit of $0.50. With an anticipated annual volume of 5,000 units and neglecting interest, the break-even point (years) is most nearly:

(A) 2.0 (B) 2.8 (C) 3.6 (D) 15.0

Correct Answer: B

What would the annuity be over a 20 year period that has an interest rate of 10% and a present worth of $500?

(A) $58.75 (B) $42.55 (C) $8.51 (D) $ 63.75

Correct Answer: A

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