ACTUAL Questions and CORRECT Answers
The code requirement for "an adequate supply of A
potable running water" is for __________ _.
a. cleansing and sanitation
b. protection of trap seals
c. water-cooled equipment
d. hydronic systems
The primary reason for installing backflow prevention C
assemblies is to_____________________ _.
a. prevent excessive pressure
b. prevent mixing of hot and cold water
c. prevent pollution or contamination of the potable
water supply
d. prevent scalding
Ballcocks in water closet tanks shall be installed so that B
the critical level of the water inlet is above the full
opening of the overflow pipe at least _______ inch(es).
a. 1/2
b. 1
c. 3
d. 6
_ ________ inch(es) is the minimum height of the C
atmospheric vacuum breaker critical level above the
highest part of a urinal equipped with a flushometer
valve.
a. One
b. Three
c. Six
d. Twelve
_ ________ inch(es) is the minimum height of the C
atmospheric vacuum breaker critical level above the
overflow rim of a tank, vat, or swimming pool.
a. One
b. Two
c. Six
d. Twelve
_ _________ inch(es) is the minimum height of the B
atmospheric vacuum breaker critical level above all
downstream piping for a lawn sprinkler system.
a. One
b. Twelve
c. Six
d. Twenty-four
, PEX tubing shall not be installed within the first ___________ B
inches of piping connected to a water heater.
a. 12
b. 18
c. 24
d. 36
Each outlet on a non-potable water system that is used D
for special purposes shall be posted
______________________________________.
a. DANGER — PROCESSED WATER
b. DANGER — CONTAMINATED WATER
c. DANGER — POLLUTED WATER
d. CAUTION — NON-POTABLE WATER DO NOT DRINK
The piping material|(s) not approved in the cold water D
piping located inside a building is ___________ _.
a. PVC
b. PE
c. asbestos cement
d. all of the above
All malleable iron water fittings shall be _____________ _. B
a. 2 inch or smaller
b. galvanized
c. flanged
d. removed
Water valves 2-1/2 inches and larger may have bodies that D
are______________.
a. galvanized
b. die-cast
c. aluminum core
d. cast iron
Changes in direction of copper tubing may be made with A
________________________________.
a. non-deforming bending equipment
b. metallic fittings
c. heat annealing
d. plastic fittings
Water piping systems shall be designed on the basis of B
the ____________________ _.
a. maximum pressure
b. minimum pressure
c. average residual pressure
d. average service pressure