Valve and Hydrant Maintenance Practice Questions

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