Practice test

Ohio Plumbing Practice Test

Free Ohio plumbing practice test with 20 questions on water supply, drain-waste-vent systems, plumbing code basics, and OCILB contractor licensing. Instant scoring.

These questions are for study practice only and are not official exam questions.

Question 1

1

In Ohio, which board licenses plumbing contractors at the state level?

Question 2

2

Does Ohio issue a statewide journeyman plumber license?

Question 3

3

In Ohio, which two exams must a candidate pass to earn the OCILB plumbing contractor license?

Question 4

4

Which testing vendor administers the Ohio OCILB plumbing contractor exams?

Question 5

5

Under OCILB rules, which of the following permit types does NOT count as qualifying experience documentation for the Ohio plumbing contractor license?

Question 6

6

In Ohio, how much contractor liability insurance must an OCILB plumbing contractor applicant carry?

Question 7

7

In Ohio, which administrative code section contains the Ohio Plumbing Code that OCILB plumbing exams reference?

Question 8

8

An Ohio OCILB plumbing contractor license has expired for more than one year. What must the license holder do to work legally as a licensed contractor again?

Question 9

9

What does the abbreviation DWV stand for in plumbing systems?

Question 10

10

What is the primary purpose of a water pressure-reducing valve installed at a building's main water service?

Question 11

11

Which device prevents contaminated water from being drawn backward into the potable water supply?

Question 12

12

What is the purpose of a P-trap under a sink?

Question 13

13

Why does a plumbing drainage system require a venting system?

Question 14

14

What is the purpose of a cleanout fitting in a drain, waste, and vent system?

Question 15

15

What problem is most likely to occur if a fixture drain has an undersized or missing vent?

Question 16

16

A plumbing code sets minimum pipe slope requirements for horizontal drain lines. What is the main reason for requiring a minimum slope?

Question 17

17

Which pipe material is a flexible cross-linked polyethylene tubing commonly approved for water distribution in modern plumbing systems?

Question 18

18

What is the purpose of an air gap on a dishwasher or similar fixture connected to the drainage system?

Question 19

19

What is the purpose of a water hammer arrestor installed near a quick-closing valve, such as on a washing machine supply line?

Question 20

20

In Ohio, roughly how much is the OCILB application fee for a plumbing contractor license, per trade?

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