Valve and Hydrant Maintenance Practice Questions

Question 1
Organizing a maintenance program starts with ________ of the distribution system or ________ of the plant or lift stations.
A
drawings/pictures
B
maps/prints
C
drawings/inspections
D
maps/permits
Question 2
Main valves are heavy and may settle if not supported on a ________ pad.
A
wooden
B
metal
C
plastic
D
concrete
Question 3
Above ground reclaimed water facilities must be color-coded ________.
A
purple
B
brown
C
gray
D
red
Question 4
The movable element of a plug valve is ________ in shape.
A
rectangular
B
cylindrical
C
spherical
D
conical
Question 5
The TCEQ requires a ________ with external lever on the discharge line of a lift station pump.
A
swing check valve
B
double check valve
C
atmospheric vacuum breaker
D
butterfly valve
Question 6
Open or close valves slowly to prevent water ________.
A
slammer
B
leaks
C
surges
D
hammer
Question 7
Instead of a disc or diaphragm, the movable element of a ________ valve is tapered to a fine point.
A
needle
B
gate
C
butterfly
D
plug
Question 8
Rotating the cone valve ________ degrees from full open closes the valve.
A
90
B
60
C
45
D
30
Question 9
According to AWWA’s hydrant color code, green indicates ________ flow and ________ gpm.
A
class C/< 500
B
class B/500 – 1,000
C
high/> 1,500
D
class A/1,000 – 1,500
Question 10
Adjusting ACV action speed prevents ________.
A
water hammer
B
freezing
C
leakage
D
all listed
Question 11
The ________ Manual M-14 contains a guide on selecting a backflow prevention device.
A
OSHA
B
EPA
C
AWWA
D
TCEQ
Question 12
Old hydrants usually have a coefficient of roughness of________%.
A
100
B
70
C
90
D
80
Question 13
A ________ system may use a ________ grid to identify a section and then ________ the valves in each section.
A
large/color/paint
B
small/number-color/letter
C
small/color/paint
D
large/number-letter/number
Question 14
A swing check valve is a special valve because it does not have a ________.
A
body
B
operator
C
movable element
D
connection
Question 15
Calculate the water hammer force on a 5-¼ inch main valve with a residual pressure of 65 psi. daum_equation_1403663709941
A
1,200 pounds
B
5,625 pounds
C
5,400 pounds
D
1,400 pounds
Question 15 Explanation: 
daum_equation_1403663803446
Question 16
To protect hydrants from vehicles, set them at least ________ feet from the curb.
A
five
B
three
C
four
D
two
Question 17
The ________ valve has a body of flexible material that acts as the moveable element.
A
pinch
B
butterfly
C
globe
D
gate
Question 18
Pressure system isolation valves can be separated by no more than ________ feet along the main.
A
25
B
none listed
C
250
D
2,500
Question 19
Meet local standards when selecting and installing the backflow device and its ________.
A
appendages
B
appurtenances
C
appliances
D
apparatuses
Question 20
Atmospheric vacuum breakers must not be subjected to continuous ________.
A
hazards
B
pressure
C
service
D
temperature
Question 21
BPAT licensing must be renewed every ________ years.
A
four
B
three
C
five
D
two
Question 22
________ well lift stations must have ________ separate sump pump(s).
A
wet/two
B
dry/one
C
dry/two
D
wet/one
Question 23
After maintenance ________ the valve fully, then ________ it ________-________ turn(s) to prevent metal-to-metal contact and corrosion bonding.
A
close, open, 1/4 - 1/2
B
open, close, 1/2 - 3/4
C
close, open, 8 - 10
D
open, close, 1/4 - 1/2
Question 24
Level control valves are not true ACVs because they are not ________ or hydraulically activated.
A
self-servicing
B
remote controlled
C
self-regulating
D
motor driven
Question 25
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?daum_equation_1403664059719
A
1,085 gpm
B
1,415 gpm
C
1,337 gpm
D
1,224 gpm
Question 25 Explanation: 
daum_equation_1403664140001
Question 26
Thrust blocks prevent joint separation or other damage caused by water ________.
A
hammer
B
end thrust
C
surge
D
velocity
Question 27
After securing a map, ________ each valve.
A
paint
B
designate
C
operate
D
lubricate
Question 28
An easy way to designate a valve is to ________ it on a distribution map.
A
mark
B
locate
C
number
D
all listed
Question 29
The most common automatic level control valve is the ________ valve.
A
gate
B
globe
C
altitude
D
float
Question 30
The altitude valve allows water into the tank, but closes at a set ________ to prevent tank overflow.
A
pressure
B
direction
C
velocity
D
volume
There are 30 questions to complete.
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