Valve and Hydrant Maintenance Practice Questions

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