# Valve and Hydrant Maintenance Practice Questions

 Question 1
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 2
Meet local standards when selecting and installing the backflow device and its ________.
 A apparatuses B appendages C appliances D appurtenances
 Question 3
BPAT licensing must be renewed every ________ years.
 A three B five C four D two
 Question 4
Above ground reclaimed water facilities must be color-coded ________.
 A brown B gray C purple D red
 Question 5
To protect hydrants from vehicles, set them at least ________ feet from the curb.
 A five B three C four D two
 Question 6
Instead of a disc or diaphragm, the movable element of a ________ valve is tapered to a fine point.
 A gate B needle C plug D butterfly
 Question 7
According to AWWA’s hydrant color code, green indicates ________ flow and ________ gpm.
 A class C/< 500 B class B/500 – 1,000 C class A/1,000 – 1,500 D high/> 1,500
 Question 8
Old hydrants usually have a coefficient of roughness of________%.
 A 100 B 80 C 70 D 90
 Question 9
Main valves are heavy and may settle if not supported on a ________ pad.
 A metal B wooden C concrete D plastic
 Question 10
The altitude valve allows water into the tank, but closes at a set ________ to prevent tank overflow.
 A velocity B pressure C volume D direction
 Question 11
A swing check valve is a special valve because it does not have a ________.
 A operator B connection C body D movable element
 Question 12
Rotating the cone valve ________ degrees from full open closes the valve.
 A 90 B 45 C 60 D 30
 Question 13
After securing a map, ________ each valve.
 A operate B lubricate C designate D paint
 Question 14
Organizing a maintenance program starts with ________ of the distribution system or ________ of the plant or lift stations.
 A maps/prints B maps/permits C drawings/pictures D drawings/inspections
 Question 15
The most common automatic level control valve is the ________ valve.
 A globe B altitude C gate D float
 Question 16
________ well lift stations must have ________ separate sump pump(s).
 A dry/one B dry/two C wet/two D wet/one
 Question 17
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 5,625 pounds B 5,400 pounds C 1,400 pounds D 1,200 pounds
Question 17 Explanation:
$\large&space;\fn_jvn&space;3.14\times2.625\times2.625\times65=1406$
 Question 18
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 1,224 gpm C 1,415 gpm D 1,337 gpm
Question 18 Explanation:
$\large&space;\fn_jvn&space;29.7\times2.5\times9\times0.80=1336.5$
 Question 19
Level control valves are not true ACVs because they are not ________ or hydraulically activated.
 A motor driven B self-regulating C self-servicing D remote controlled
 Question 20
An easy way to designate a valve is to ________ it on a distribution map.
 A locate B all listed C mark D number
 Question 21
Atmospheric vacuum breakers must not be subjected to continuous ________.
 A hazards B pressure C service D temperature
 Question 22
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, 8 - 10 C close, open, 1/4 - 1/2 D open, close, 1/2 - 3/4
 Question 23
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 24
A ________ system may use a ________ grid to identify a section and then ________ the valves in each section.
 A small/color/paint B large/color/paint C small/number-color/letter D large/number-letter/number
 Question 25
Open or close valves slowly to prevent water ________.
 A slammer B surges C leaks D hammer
 Question 26
Adjusting ACV action speed prevents ________.
 A leakage B all listed C freezing D water hammer
 Question 27
Thrust blocks prevent joint separation or other damage caused by water ________.
 A velocity B hammer C end thrust D surge
 Question 28
The ________ valve has a body of flexible material that acts as the moveable element.
 A butterfly B globe C pinch D gate
 Question 29
The movable element of a plug valve is ________ in shape.
 A spherical B conical C cylindrical D rectangular
 Question 30
The ________ Manual M-14 contains a guide on selecting a backflow prevention device.
 A EPA B TCEQ C AWWA D OSHA
There are 30 questions to complete.