IBEW Aptitude Test Solving Linear Equations Questions and Answers

Question 1

An electrician has a 50-foot stick of conduit. They cut 6 identical pieces from it for a job and have 8 feet of conduit left over. What is the length of each piece that was cut?

Accepted Answer

7 feet

Answer

6 feet

Answer

8 feet

Answer

8.33 feet

Question 2

An electrical contractor charges a flat $75 service fee plus an hourly rate for labor. If a job takes 4 hours and the total bill is $355, what is the contractor's hourly rate?

Accepted Answer

$70/hr

Answer

$65/hr

Answer

$88.75/hr

Answer

$80/hr

Question 3

Which of the following is the correct solution for 'z' in the equation 5(z - 2) - 3 = 2(z + 5)?

Accepted Answer

z = 23/3

Answer

z = 9

Answer

z = 1

Answer

z = 11/3

Question 4

Find the value of x that solves the following equation: (1/2)x + 5 = (3/4)x

Accepted Answer

x = 20

Answer

x = 15

Answer

x = 10

Answer

x = -10

Question 5

The perimeter of a rectangular electrical panel is 54 inches. The length of the panel is 3 inches less than twice its width. What is the width of the panel?

Accepted Answer

10 inches

Answer

12 inches

Answer

9 inches

Answer

17 inches

Question 6

Solve the following linear equation for y: 7y - 11 = 3y + 5

Accepted Answer

y = 4

Answer

y = 2

Answer

y = 1.6

Answer

y = -4