Valve and Hydrant Maintenance Practice Questions

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