Valve and Hydrant Maintenance Practice Questions

Question 1
Old hydrants usually have a coefficient of roughness of________%.
A
100
B
80
C
70
D
90
Question 2
Main valves are heavy and may settle if not supported on a ________ pad.
A
wooden
B
metal
C
concrete
D
plastic
Question 3
________ well lift stations must have ________ separate sump pump(s).
A
wet/two
B
dry/one
C
wet/one
D
dry/two
Question 4
A swing check valve is a special valve because it does not have a ________.
A
connection
B
operator
C
movable element
D
body
Question 5
BPAT licensing must be renewed every ________ years.
A
five
B
four
C
three
D
two
Question 6
To protect hydrants from vehicles, set them at least ________ feet from the curb.
A
five
B
three
C
two
D
four
Question 7
A ________ system may use a ________ grid to identify a section and then ________ the valves in each section.
A
large/color/paint
B
small/color/paint
C
small/number-color/letter
D
large/number-letter/number
Question 8
According to AWWA’s hydrant color code, green indicates ________ flow and ________ gpm.
A
high/> 1,500
B
class C/< 500
C
class B/500 – 1,000
D
class A/1,000 – 1,500
Question 9
An easy way to designate a valve is to ________ it on a distribution map.
A
all listed
B
number
C
mark
D
locate
Question 10
Above ground reclaimed water facilities must be color-coded ________.
A
purple
B
red
C
brown
D
gray
Question 11
The movable element of a plug valve is ________ in shape.
A
spherical
B
cylindrical
C
rectangular
D
conical
Question 12
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
1,337 gpm
B
1,085 gpm
C
1,415 gpm
D
1,224 gpm
Question 12 Explanation: 
daum_equation_1403664140001
Question 13
Thrust blocks prevent joint separation or other damage caused by water ________.
A
velocity
B
surge
C
end thrust
D
hammer
Question 14
The altitude valve allows water into the tank, but closes at a set ________ to prevent tank overflow.
A
pressure
B
direction
C
velocity
D
volume
Question 15
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 16
Meet local standards when selecting and installing the backflow device and its ________.
A
appliances
B
apparatuses
C
appendages
D
appurtenances
Question 17
After maintenance ________ the valve fully, then ________ it ________-________ turn(s) to prevent metal-to-metal contact and corrosion bonding.
A
open, close, 1/4 - 1/2
B
close, open, 1/4 - 1/2
C
close, open, 8 - 10
D
open, close, 1/2 - 3/4
Question 18
The ________ valve has a body of flexible material that acts as the moveable element.
A
globe
B
butterfly
C
pinch
D
gate
Question 19
The ________ Manual M-14 contains a guide on selecting a backflow prevention device.
A
TCEQ
B
OSHA
C
EPA
D
AWWA
Question 20
Rotating the cone valve ________ degrees from full open closes the valve.
A
90
B
60
C
30
D
45
Question 21
The most common automatic level control valve is the ________ valve.
A
globe
B
gate
C
altitude
D
float
Question 22
Adjusting ACV action speed prevents ________.
A
water hammer
B
leakage
C
freezing
D
all listed
Question 23
The TCEQ requires a ________ with external lever on the discharge line of a lift station pump.
A
butterfly valve
B
atmospheric vacuum breaker
C
double check valve
D
swing check valve
Question 24
After securing a map, ________ each valve.
A
paint
B
designate
C
lubricate
D
operate
Question 25
Open or close valves slowly to prevent water ________.
A
leaks
B
slammer
C
surges
D
hammer
Question 26
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 27
Pressure system isolation valves can be separated by no more than ________ feet along the main.
A
250
B
25
C
2,500
D
none listed
Question 28
Atmospheric vacuum breakers must not be subjected to continuous ________.
A
hazards
B
temperature
C
service
D
pressure
Question 29
Organizing a maintenance program starts with ________ of the distribution system or ________ of the plant or lift stations.
A
maps/prints
B
drawings/inspections
C
maps/permits
D
drawings/pictures
Question 30
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
5,400 pounds
C
1,200 pounds
D
5,625 pounds
Question 30 Explanation: 
daum_equation_1403663803446
There are 30 questions to complete.
Practice Questions mostly from TEEX manuals

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