# Valve and Hydrant Maintenance Practice Questions

 Question 1
Atmospheric vacuum breakers must not be subjected to continuous ________.
 A hazards B temperature C service D pressure
 Question 2
The ________ valve has a body of flexible material that acts as the moveable element.
 A globe B butterfly C pinch D gate
 Question 3
The altitude valve allows water into the tank, but closes at a set ________ to prevent tank overflow.
 A direction B velocity C pressure D volume
 Question 4
Pressure system isolation valves can be separated by no more than ________ feet along the main.
 A 250 B 2,500 C none listed D 25
 Question 5
A ________ system may use a ________ grid to identify a section and then ________ the valves in each section.
 A large/color/paint B large/number-letter/number C small/number-color/letter D small/color/paint
 Question 6
Main valves are heavy and may settle if not supported on a ________ pad.
 A plastic B wooden C concrete D metal
 Question 7
Open or close valves slowly to prevent water ________.
 A slammer B hammer C surges D leaks
 Question 8
Calculate the water hammer force on a 5-¼ inch main valve with a residual pressure of 65 psi. $\fn_jvn&space;(\pi&space;r^2\times&space;psi=force)$
 A 1,200 pounds B 5,400 pounds C 1,400 pounds D 5,625 pounds
Question 8 Explanation:
$\large&space;\fn_jvn&space;3.14\times2.625\times2.625\times65=1406$
 Question 9
A swing check valve is a special valve because it does not have a ________.
 A movable element B operator C body D connection
 Question 10
BPAT licensing must be renewed every ________ years.
 A four B three C five D two
 Question 11
An easy way to designate a valve is to ________ it on a distribution map.
 A locate B number C mark D all listed
 Question 12
The TCEQ requires a ________ with external lever on the discharge line of a lift station pump.
 A butterfly valve B double check valve C atmospheric vacuum breaker D swing check valve
 Question 13
The movable element of a plug valve is ________ in shape.
 A spherical B rectangular C conical D cylindrical
 Question 14
Adjusting ACV action speed prevents ________.
 A water hammer B all listed C freezing D leakage
 Question 15
After maintenance ________ the valve fully, then ________ it ________-________ turn(s) to prevent metal-to-metal contact and corrosion bonding.
 A open, close, 1/4 - 1/2 B close, open, 1/4 - 1/2 C close, open, 8 - 10 D open, close, 1/2 - 3/4
 Question 16
Rotating the cone valve ________ degrees from full open closes the valve.
 A 30 B 90 C 60 D 45
 Question 17
Above ground reclaimed water facilities must be color-coded ________.
 A brown B purple C gray D red
 Question 18
________ well lift stations must have ________ separate sump pump(s).
 A wet/one B dry/one C dry/two D wet/two
 Question 19
Thrust blocks prevent joint separation or other damage caused by water ________.
 A surge B hammer C velocity D end thrust
 Question 20
What is the flow in gpm from a fire hydrant through the 2-½ inch nozzle, the coefficient of roughness is 80% and the pressure is 81 psi? $\large&space;\fn_jvn&space;(gpm=29.7\times&space;d^2\times&space;pressure\times&space;CR)$
 A 1,085 gpm B 1,337 gpm C 1,224 gpm D 1,415 gpm
Question 20 Explanation:
$\large&space;\fn_jvn&space;29.7\times2.5\times9\times0.80=1336.5$
 Question 21
After securing a map, ________ each valve.
 A lubricate B operate C paint D designate
 Question 22
Instead of a disc or diaphragm, the movable element of a ________ valve is tapered to a fine point.
 A needle B plug C gate D butterfly
 Question 23
The ________ Manual M-14 contains a guide on selecting a backflow prevention device.
 A TCEQ B OSHA C EPA D AWWA
 Question 24
Old hydrants usually have a coefficient of roughness of________%.
 A 70 B 80 C 100 D 90
 Question 25
Meet local standards when selecting and installing the backflow device and its ________.
 A appurtenances B apparatuses C appliances D appendages
 Question 26
To protect hydrants from vehicles, set them at least ________ feet from the curb.
 A five B two C four D three
 Question 27
Organizing a maintenance program starts with ________ of the distribution system or ________ of the plant or lift stations.
 A drawings/inspections B maps/prints C drawings/pictures D maps/permits
 Question 28
The most common automatic level control valve is the ________ valve.
 A altitude B float C gate D globe
 Question 29
Level control valves are not true ACVs because they are not ________ or hydraulically activated.
 A motor driven B remote controlled C self-regulating D self-servicing
 Question 30
According to AWWA’s hydrant color code, green indicates ________ flow and ________ gpm.
 A class A/1,000 – 1,500 B class B/500 – 1,000 C class C/< 500 D high/> 1,500
There are 30 questions to complete.