PC Inspection & Quality Control 4

Question 1

When inspecting a newly installed water meter, what is the inspector checking by looking at the meter's dial or digital display with all fixtures turned off?

Accepted Answer

Whether the low-flow indicator is moving, which would indicate a hidden leak

Answer

Whether the meter model is approved by the utility

Answer

Whether the meter register matches the permit number

Answer

Whether the meter serial number matches the installation paperwork

Question 2

An inspector discovers that a vent pipe terminates 6 inches above the roof. What code violation does this represent?

Accepted Answer

Minimum vent height above the roof is 12 inches in most codes

Answer

Vent pipes are prohibited from penetrating roofs

Answer

The vent diameter must equal the drain diameter

Answer

Vent pipes must terminate below the roofline

Question 3

During a fixture final inspection, the inspector finds a lavatory drain has a pop-up stopper that doesn't seal completely. What is the inspector's most likely response?

Accepted Answer

Fail it and require adjustment or replacement of the pop-up assembly

Answer

Pass it, since the stopper is an aesthetic feature only

Answer

Note it as a minor deficiency but issue the certificate of occupancy

Answer

Require the entire lavatory to be replaced

Question 4

A plumber uses 1½-inch pipe for a branch drain serving a kitchen sink. The code requires a minimum of 1½-inch pipe for this fixture. If the inspector finds the pipe is actually 1¼-inch, what action is required?

Accepted Answer

Require replacement with 1½-inch minimum pipe

Answer

Accept it if the slope is steeper than ¼ inch per foot

Answer

Accept it only if a cleanout is added

Answer

Approve it because kitchen waste is mostly liquid

Question 5

An inspector is checking a hydronic heating system and notices the expansion tank is waterlogged. What problem does this create?

Accepted Answer

Excessive pressure buildup causing the relief valve to discharge repeatedly

Answer

Reduced hot water temperature

Answer

Insufficient water flow to radiators

Answer

Corrosion of the boiler heat exchanger

Question 6

Which of the following would an inspector note as a violation when reviewing cleanout accessibility in a commercial building?

Accepted Answer

A cleanout located inside a locked mechanical room with no key available to the inspector

Answer

A cleanout installed at the base of each stack

Answer

A cleanout with a plug made of the same material as the pipe

Answer

A cleanout installed at every change of direction exceeding 45 degrees

Question 7

What does an inspector verify when checking that a pressure-balancing shower valve is installed?

Accepted Answer

That the valve limits hot/cold pressure differential to prevent scalding or thermal shock

Answer

That the valve provides a minimum flow rate of 2.5 GPM

Answer

That the valve is made of brass construction only

Answer

That the valve is installed within 6 inches of the showerhead