Valve and Hydrant Maintenance Practice Questions

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