Deck 17: Plumbing Codes: Sanitary Drainage

Question 1

The International Plumbing Code prohibits which of the following joints and connections?

A)cement joints
B)brazed joints
C)mechanical joints
D)heat-fusion joints

Answer 1

A

Question 2

What is the purpose of a percolation test?

A)determines acceptability of soil conditions
B)determines the DFUs for an entire building
C)tests the integrity of installed piping joints
D)tests integrity of storm drainage

Answer 2

A

Question 3

Which of the following is NOT a factor to be examined when operating stacks using  a code-provided table?

A)total number of fixtures discharged into each branch interval
B)velocity of discharge
C)number of branch intervals
D)branch size required for lines into the stack

Answer 3

B

Question 4

Which pipe material requires the use of a compression gasket for connection?

A)brass pipe
B)glass pipe
C)cast iron
D)ABS plastic pipe

Question 5

Pipe passing through walls should be protected by a sleeve, unless the wall is made from concrete.

Question 6

Which piping material is most likely to be connected using heat-fusion joints?

A)copper pipe
B)cast iron pipe
C)brass pipe
D)plastic pipe

Question 7

What is the term used to describe the index number that permits the combination of different fixture types to determine probable maximum load on a drainage system?

A)drainage fixture unit
B)slope unit
C)stack calculation
D)offset cost

Question 8

What is the minimum required design distance for a septic tank and a well?

A)25 feet
B)100 feet
C)75 feet
D)50 feet

Question 9

The desirable velocity of waste is about four feet per second.

Question 10

What is the term for the vertical portion of sanitary piping?

A)slopes
B)risers
C)subdrains
D)stacks

Question 11

What is the DFU recently set by the International Plumbing Code for waterless urinals?

A)1
B)1.5
C)0.5
D)2

Question 12

A typical water closet featuring 1.6 GPF has a DFU value of:

A)5
B)4
C)6
D)3

Question 13

Underground piping must be laid on a firm bed for its entire length, with the exception of galvanized steel piping.

Question 14

The testing of plumbing DWV systems with water or air to prove them watertight describes which plumbing test?

A)finished plumbing test
B)rough plumbing test
C)sewer test
D)existing systems test

Question 15

Regarding slope, the International Plumbing Code requires lines 2 ½ inches and smaller to be install at no less than how many inches per foot?

A)1/8 inch
B)1/4 inch
C)1/16 inch
D)1/2 inch