IPC Traps, Interceptors, and Separators 3

Question 1

According to the IPC, what type of interceptor is required for dental offices?

Accepted Answer

An amalgam separator

Answer

A grease interceptor

Answer

A sand interceptor

Answer

No interceptor is required

Question 2

What does the IPC specify about the trap arm length between a fixture trap and its vent connection?

Accepted Answer

The maximum length depends on the trap arm pipe diameter

Answer

No maximum length is specified

Answer

The maximum length is always 6 feet

Answer

Trap arms do not require venting

Question 3

Under the IPC, when is a laundry interceptor required?

Accepted Answer

In commercial laundry facilities that may discharge lint, string, or rags

Answer

In all residential laundry rooms

Answer

Only when a laundry serves more than 50 machines

Answer

Laundry interceptors are never required

Question 4

According to the IPC, what happens to the trap seal when a nearby fixture discharges a large volume of water rapidly?

Accepted Answer

Induced siphonage can pull the trap seal out

Answer

Nothing, traps are unaffected by other fixtures

Answer

The trap seal depth increases

Answer

The trap water temperature rises

Question 5

What does the IPC require when a building has both a food waste grinder (garbage disposal) and a grease interceptor?

Accepted Answer

The grinder discharge must bypass the grease interceptor

Answer

The grinder discharge must pass through the grease interceptor

Answer

Either arrangement is acceptable

Answer

Food waste grinders are prohibited with grease interceptors

Question 6

Under the IPC, what is the minimum frequency for cleaning a hydromechanical grease interceptor?

Accepted Answer

When it reaches 25% grease capacity

Answer

When it reaches 50% grease capacity

Answer

Monthly regardless of capacity

Answer

Annually regardless of capacity