Question

bell and spigot is
a male/female connection method for cast iron pipe
a sweated lead joint
a brazed copper joint
a tapered threaded joint
a welding system for steel drainage piping
question 40
a trap may clog if
the trap is oversized or undersized
the trap is assembled with slip joints
the tailpiece is too short
the trap arm length is too long
the vent is oversized

Explanation:

Bell and spigot is a common male - female connection method for cast iron pipes. In plumbing, if the trap arm length is too long, it can cause solids to settle and accumulate, leading to clogging.

Answer:

1. a male/female connection method for cast iron pipe
2. the trap arm length is too long