Valve and Hydrant Maintenance Practice Questions

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