Valve and Hydrant Maintenance Practice Questions

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