Water Treatment OIT test Questions
and Answers 100% Pass
What units are used to measure water pressure?
a) Kilowatts
b) Kilopascals
c) Horsepower
d) Head units - ANSWER-b) Kilopascals
Which of the following is NOT an example of PPE (Personal Protective
Equipment)?
a) Exhaust fan
b) SCBA
c) Face shield
d) Traffic vest - ANSWER-a) Exhaust fan
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,Which of the following are operators-in-training NOT allowed to do?
a) There are no restrictions on the duties of an operator-in-training
b) Any operational duties if not in the presence of another operator
c) Anything which could effect the quality of the water/wastewater
d) Be the operator with overall operational responsibility of the system -
ANSWER-d) Be the operator with overall operational responsibility of the system
Define the term "head" as used in hydraulic systems.
a) The block of an internal combustions engine
b) The ability of a piston pump to overcome the force of gravity
c) The height or energy of water above a specified point
d) The distance between the liquid level and the cover of a well - ANSWER-c) The
height or energy of water above a specified point
Which of the following statements accurately describes some of the properties of
chlorine?
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, a) I a colourless gas which is toxic to plants and animals; is flammable and
explosive
b) Is a greenish/yellow gas with a penetrating odour; is heavier than air
c) Is a yellowish gas with an irritating odour; insoluble in water
d) Is lighter than air; soluble in water and forms a salt which is lethal to
microorganisms - ANSWER-b) Is a greenish/yellow gas with a penetrating odour;
is heavier than air
What happens when two or more different elements combine?
a) chemical compound is formed
b) atom is created
c) molecule is formed
d) concentration is created - ANSWER-a) chemical compound is formed
What is the definition of a confined space?
a) Any space which is not actively ventilated by an electrical ventilation system
b) Any space from which exit by an injured worker is difficult
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and Answers 100% Pass
What units are used to measure water pressure?
a) Kilowatts
b) Kilopascals
c) Horsepower
d) Head units - ANSWER-b) Kilopascals
Which of the following is NOT an example of PPE (Personal Protective
Equipment)?
a) Exhaust fan
b) SCBA
c) Face shield
d) Traffic vest - ANSWER-a) Exhaust fan
©️COPYRIGHT 2025, ALL RIGHTS RESERVED. 1
,Which of the following are operators-in-training NOT allowed to do?
a) There are no restrictions on the duties of an operator-in-training
b) Any operational duties if not in the presence of another operator
c) Anything which could effect the quality of the water/wastewater
d) Be the operator with overall operational responsibility of the system -
ANSWER-d) Be the operator with overall operational responsibility of the system
Define the term "head" as used in hydraulic systems.
a) The block of an internal combustions engine
b) The ability of a piston pump to overcome the force of gravity
c) The height or energy of water above a specified point
d) The distance between the liquid level and the cover of a well - ANSWER-c) The
height or energy of water above a specified point
Which of the following statements accurately describes some of the properties of
chlorine?
©️COPYRIGHT 2025, ALL RIGHTS RESERVED. 2
, a) I a colourless gas which is toxic to plants and animals; is flammable and
explosive
b) Is a greenish/yellow gas with a penetrating odour; is heavier than air
c) Is a yellowish gas with an irritating odour; insoluble in water
d) Is lighter than air; soluble in water and forms a salt which is lethal to
microorganisms - ANSWER-b) Is a greenish/yellow gas with a penetrating odour;
is heavier than air
What happens when two or more different elements combine?
a) chemical compound is formed
b) atom is created
c) molecule is formed
d) concentration is created - ANSWER-a) chemical compound is formed
What is the definition of a confined space?
a) Any space which is not actively ventilated by an electrical ventilation system
b) Any space from which exit by an injured worker is difficult
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