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OIT EXAM prep with 100- correct answers updated 2024
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OIT EXAM prep with 100- correct answers updated 2024
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OIT EXAM prep with 100% correct answersupdated 2024
activated carbon - ANSWER- Particles or granules that have a high capacity to
selectively remove certain trace and soluble materials from water
adsorption - ANSWER- the gathering of a gas, liquid or dissolved substance on
the surface or interface zone of another material
aesthetics - ANSWER- aspects of drinking water quality that are perceivable by
the senses
air gap - ANSWER- an open vertical drop, or vertical empty space that separates a
drinking water supply; prevents the contamination of drinking water by back
siphonage or backflow
alternating current - ANSWER- an electric current that reverses its direction at
regular intervals
amperage - ANSWER- the strength of an electric current measured in amperes
ampere - ANSWER- the current produced by an electromotive force of one volt
acting through a resistance of one ohm
annular space - ANSWER- a ring-shaped space located between two circular
objects such as two pipes or the space between the casing and the well wall
anode - ANSWER- the positive pole or electrode of an electrolytic system
, aquifer - ANSWER- a natural underground layer of porous water-bearing materials
backflow - ANSWER- a reverse flow condition
backsiphonage - ANSWER- a form of backflow caused by a negative or below
atmospheric pressure within a water system
cavitation - ANSWER- the formation and collapse of a gas pocket or bubble on
the blade of an impeller or the gate of a valve which drives water into the valve
with a terrific force that can cause pitting on the impeller or gate surface;
accompanied by loud pounding noises
chloramination - ANSWER- the application of ammonia to chlorinated water to
form chloramines for the purpose of secondary disinfection
coliform - ANSWER- when present, this is an indication that the water may
contain pathogens
colloids - ANSWER- very small, finely divided solids that remain dispersed in a
liquid for a long time due to their small size and electrical charge
composite sample - ANSWER- a collection of individual samples obtained at
regular intervals; usually every 1-2 hrs during a 24hr span.
cone of depression - ANSWER- an area that the well draws water from the aquifer
cryptosporidium - ANSWER- protozoa that are parasites of warm-blooded animals
but which can survive in water for extended periods
direct current - ANSWER- electric current flowing in one direction only and
essentially free from pulsation
Escherichia coli - ANSWER- a type of fecal coliform and a strong indicator of
recent fecal pollution
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