Plant Operator Selection System Test Plant Operator Selection System Algebra and Formula Conversion 5

Question 1

In the formula W = F × d, if W = 200 ft·lbs and d = 8 ft, what is F?

Accepted Answer

25 lbs

Answer

F = W ÷ d = 200 ÷ 8 = 25 lbs.

Question 2

Which value of x satisfies 2x + 5 = x − 3?

Accepted Answer

x = −8

Answer

Subtract x: x + 5 = −3, then subtract 5: x = −8.

Question 3

If C = 2πr and r = 7 (use π ≈ 3.14), what is C?

Accepted Answer

43.96

Answer

C = 2 × 3.14 × 7 = 6.28 × 7 = 43.96.

Question 4

A concentration formula gives C = (S/V) × 1000. If S = 0.35 and V = 7, what is C?

Accepted Answer

50

Answer

C = (0.35 ÷ 7) × 1000 = 0.05 × 1000 = 50.

Question 5

Rearrange KE = ½mv² to solve for m.

Accepted Answer

m = 2KE/v²

Answer

Multiply both sides by 2 and divide by v²: m = 2KE/v².

Plant Operator Selection System Test Practice Test