Plant Operator Selection System Test Plant Operator Selection System Algebra and Formula Conversion 4

Question 1

Solve for t: d = r × t, where d = 150 and r = 25.

Accepted Answer

t = 6

Answer

t = d ÷ r = 150 ÷ 25 = 6.

Question 2

Which expression equals 2(3x − 4) + x?

Accepted Answer

7x − 8

Answer

Distribute: 6x − 8 + x = 7x − 8.

Question 3

A pressure formula is P = F/A. If F = 500 lbs and A = 25 in², what is P?

Accepted Answer

20 psi

Answer

P = 500 ÷ 25 = 20 psi.

Question 4

Solve the proportion: 3/8 = x/24

Accepted Answer

x = 9

Answer

Cross-multiply: 3 × 24 = 8x → 72 = 8x → x = 9.

Question 5

If a formula uses T = (R₁ + R₂)/2 and R₁ = 80 and R₂ = 60, what is T?

Accepted Answer

70

Answer

T = (80 + 60) ÷ 2 = 140 ÷ 2 = 70.

Plant Operator Selection System Test Practice Test