Iron Worker | Cast-Iron Pipe and
Fittings Set Exam Tested Questions &
Reviewed Correct Detailed Answers
New Update!!
1. Ductile iron is made from a combination of molten gray iron and _____. -
ANSWER magnesium
2. A 1/8 bend fitting turns the pipe _____. - ANSWER 45 degrees
3. Fittings used to create branches in the piping system are called _____. -
ANSWER wyes
4. When measuring a no-hub cast-iron pipe, you must _____. - ANSWER
subtract the allowance for the gasket ridge
5. When joining hub-and-spigot pipe using a compression joint, the spigot
end of the pipe should be forced into the gasket using a _____. - ANSWER
puller tool
6. Compression joints can be deflected or bent up to _____. - ANSWER 5
degrees
7. While using a 60 inch-pound torque wrench to tighten the coupling clamps
on a no-hub pipe, a plumber hears a clicking sound. This means that _____.
- ANSWER the wrench has disengaged
, 8. To fasten pipe to I-beams, bar joists, and other metal structures, use
_____. - ANSWER beam clamps or C-clamps
9. If DWV piping is installed with a slope of 1/2 inch per foot or greater,
_____. - ANSWER liquid and solid wastes may separate
10. When installing vertical pipe runs, the pipe must be supported at _____. -
ANSWER each floor level
11. If permitted by local code, attach pipe supports to hollow masonry using
_____. - ANSWER toggle bolts
12. The two types of testing that can be performed at the rough-in stage are
_____. - ANSWER air pressure and hydrostatic
13. The peppermint test is used to detect leaks by using _____. - ANSWER
smell
14. If a cast-iron fitting includes the "CI" trademark ( ), that means it has been
manufactured according to the standards set by _____. - ANSWER
CISPI
15. Cast-iron pipe is classified by its _____. - ANSWER wall thickness
Fittings Set Exam Tested Questions &
Reviewed Correct Detailed Answers
New Update!!
1. Ductile iron is made from a combination of molten gray iron and _____. -
ANSWER magnesium
2. A 1/8 bend fitting turns the pipe _____. - ANSWER 45 degrees
3. Fittings used to create branches in the piping system are called _____. -
ANSWER wyes
4. When measuring a no-hub cast-iron pipe, you must _____. - ANSWER
subtract the allowance for the gasket ridge
5. When joining hub-and-spigot pipe using a compression joint, the spigot
end of the pipe should be forced into the gasket using a _____. - ANSWER
puller tool
6. Compression joints can be deflected or bent up to _____. - ANSWER 5
degrees
7. While using a 60 inch-pound torque wrench to tighten the coupling clamps
on a no-hub pipe, a plumber hears a clicking sound. This means that _____.
- ANSWER the wrench has disengaged
, 8. To fasten pipe to I-beams, bar joists, and other metal structures, use
_____. - ANSWER beam clamps or C-clamps
9. If DWV piping is installed with a slope of 1/2 inch per foot or greater,
_____. - ANSWER liquid and solid wastes may separate
10. When installing vertical pipe runs, the pipe must be supported at _____. -
ANSWER each floor level
11. If permitted by local code, attach pipe supports to hollow masonry using
_____. - ANSWER toggle bolts
12. The two types of testing that can be performed at the rough-in stage are
_____. - ANSWER air pressure and hydrostatic
13. The peppermint test is used to detect leaks by using _____. - ANSWER
smell
14. If a cast-iron fitting includes the "CI" trademark ( ), that means it has been
manufactured according to the standards set by _____. - ANSWER
CISPI
15. Cast-iron pipe is classified by its _____. - ANSWER wall thickness
