update

Question 1

an experienced water treatment operator is expected to

Answer 1

all of the above

Question 2

drinking water treatment operators have the responsibility of producing

Answer 2

safe and pleasant

C. a+b

Question 3

water treatment operators must be able to explain the operation of their plant to

Answer 3

all of the above

Question 4

which of the following diseases is not spread through a water supply

Answer 4

smallpox

Question 5

typical usage of reclaimed water include all of the following except

Answer 5

drinking

Question 6

most people like water at what temp

Answer 6

50-60f

Question 7

what is the surface area of a circular clarifier 40ft in diameter

Answer 7

pie*r squared

1256.64

Question 8

what chemical is used to make copper sulfate effective

Answer 8

citric acid

Question 9

how many pounds of copper sulfate will be needed to dose a reservoir with 25ml of copper

Answer 9

335

Question 10

200mw is scheduled to flow from bus x to bus y. x to y is a 10% distribution factor

Answer 10

20mw

Question 11

t/f complex power is a vectoral difference

Answer 11

false

Question 12

the greek letter theta is used to represent

Answer 12

phase angel

Question 13

Written- synchroscope is used to compare what

Answer 13

phase
magnitude
frequency

Question 14

t\f if two power paths are available less power will flow on the path with less impedance

Answer 14

false

Question 15

phase shifting transformer primary function is to

Answer 15

adjust the flow of excess power

Question 16

all of the following effect excess power flow except

Answer 16

transmission line charging

Question 17

Written- the complex power is always equal to

Answer 17

e*l

Question 18

Written- power flows in inverse proportion to the _____ of the available transmission path

Answer 18

impedance

Question 19

what element of power system is most susceptible to damage to prolong operation frequency above 60hz

Answer 19

long blades of low pressure steam plant

Question 20

t\f the north American power system is divided into interconnections

Answer 20

true

Question 21

Written- under generation is___, over generation is___

Answer 21

slow time error

fast time error

Question 22

Written- all loads can be divided into to types

Answer 22

motor and non-motor load

Question 23

t\f if the voltage falls enough it will cause the motor to speed up

Answer 23

false

Question 24

Written- electric generator use a ___system to control shaft speed

Answer 24

governor control system

Question 25

Written- ____ governors are a type of governor on older units

Answer 25

centrifiul ball head

Question 26

Written-name two types of utility generators that use governor control systems

Answer 26

hydroelectric | steam

Question 27

Written- the load that is connected to the power system will absorb different amounts of mw depending on the frequency and ___ of the sysetem

Answer 27

voltage

Question 28

a transmission line____ is the mvar loading of the line natural capacitance

Answer 28

surge impedance loading

Question 29

what is the approx. mvr per mile for a 500kv line

Answer 29

2mvar

Question 30

in a purely inductive load what can be said about the mva disload draws from the system

Answer 30

only mvar

Question 31

t\f a generator with spare mvar is always a source of dynamic active reserve

Answer 31

false

Question 32

Written- name two types of power made by generators

Answer 32

active and reactive power

Question 33

which of the following is not the cause of low voltage

Answer 33

c excessive reactive power

Question 34

rock fill dams use all sizes of rock to

Answer 34

provide stability around structure only d-a+c

Question 35

what is the primary purpose of a retention dam

Answer 35

flood protection

Question 36

what is the membrane of the rock fill dame made of

Answer 36

c. asphalt, concrete, steel

Question 37

which of the following is not one of the stages of investigation of a potential dam site

Answer 37

a precipitation evaluation

Question 38

which of the following do geologic maps identify

Answer 38

a. rock unit and geologic structure

Question 39

all of the following are mechanisms that develop soil deposits on the surface except

Answer 39

a.decay

Question 40

select the most common non accessible exploring method for subsurface drilling

Answer 40

c. augur drilling

Question 41

uplift pressure and erosion caused by seepage for rock fill dams is a source of problems

Answer 41

false

Question 42

what is the purpose of the blow off structure regarding the siphon

Answer 42

draining, cleaning access, turnout d- all of the above

Question 43

what is not one of the most commonly used flumes

Answer 43

b. wooden flume

Question 44

what is the side slope of the state water project canal

Answer 44

2:1 | 1 foot rise for every 2 foot out

Question 45

what is the preferred shape for a monolithic reinforced concrete chute

Answer 45

rectangular

Question 46

the most common type of construction to convey water over natural cross stream channels is

Answer 46

buried concrete pipe, monolithic concrete pipe, overhead steal pipe d- all of the above

Question 47

latten heat of vapertion of a substance is the amount of heat a substance absorbs as it

Answer 47

b. evaporates

Question 48

from the compressor refrigerant goes to the__

Answer 48

condenser

Question 49

in sling cycometer if the difference between the wet bulb temp and dry bulb temp is small you know the air is quite____

Answer 49

humid

Question 50

relative humidity can be measured with a ____

Answer 50

hygrometer