Water Treatment OIT test| 50 questions| with complete solutions
b) Kilopascals Correct Answer: What units are used to measure water pressure?
a) Kilowatts
b) Kilopascals
c) Horsepower
d) Head units
a) Exhaust fan Correct Answer: Which of the following is NOT an example of PPE (Personal
Protective Equipment)?
a) Exhaust fan
b) SCBA
c) Face shield
d) Traffic vest
d) Be the operator with overall operational responsibility of the system Correct Answer: 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
c) The height or energy of water above a specified point Correct Answer: 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
b) Is a greenish/yellow gas with a penetrating odour; is heavier than air Correct Answer: Which
of the following statements accurately describes some of the properties of chlorine?
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
a) chemical compound is formed Correct Answer: 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
a) Any space which is not actively ventilated by an electrical ventilation system Correct Answer:
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
c) Any space where hazardous gas can accumulate or an oxygen deficient atmosphere can occur
d) Any space where the distance from floor to ceiling is less than 3 metres
a) Amperes Correct Answer: The flow of electrical current is measured in
a) Amperes
b) Ohms
c) Volts
d) Watts
b) contain carbon, hydrogen and oxygen Correct Answer: What is meant by the term 'organic
compounds'? Chemical compounds that are:
a) not made from carbon
b) contain carbon, hydrogen and oxygen
c) can easily oxidize
d) can dissolve in water
d) 450 Correct Answer: The volume of chlorine increases ______ times when it is depressurized
into gas
a) 100
b) 200
c) 350
d) 450
c) dissolved mineral salts Correct Answer: What causes hardness in water?
a) high pH
b) low turbidity
c) dissolved mineral salts
d) alkalinity
d) sewage works operators Correct Answer: O. Reg. 129/04 addresses the licensing of:
a) drinking water operators
b) water quality analysts
c) medical officers of health
b) Kilopascals Correct Answer: What units are used to measure water pressure?
a) Kilowatts
b) Kilopascals
c) Horsepower
d) Head units
a) Exhaust fan Correct Answer: Which of the following is NOT an example of PPE (Personal
Protective Equipment)?
a) Exhaust fan
b) SCBA
c) Face shield
d) Traffic vest
d) Be the operator with overall operational responsibility of the system Correct Answer: 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
c) The height or energy of water above a specified point Correct Answer: 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
b) Is a greenish/yellow gas with a penetrating odour; is heavier than air Correct Answer: Which
of the following statements accurately describes some of the properties of chlorine?
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
a) chemical compound is formed Correct Answer: 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
a) Any space which is not actively ventilated by an electrical ventilation system Correct Answer:
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
c) Any space where hazardous gas can accumulate or an oxygen deficient atmosphere can occur
d) Any space where the distance from floor to ceiling is less than 3 metres
a) Amperes Correct Answer: The flow of electrical current is measured in
a) Amperes
b) Ohms
c) Volts
d) Watts
b) contain carbon, hydrogen and oxygen Correct Answer: What is meant by the term 'organic
compounds'? Chemical compounds that are:
a) not made from carbon
b) contain carbon, hydrogen and oxygen
c) can easily oxidize
d) can dissolve in water
d) 450 Correct Answer: The volume of chlorine increases ______ times when it is depressurized
into gas
a) 100
b) 200
c) 350
d) 450
c) dissolved mineral salts Correct Answer: What causes hardness in water?
a) high pH
b) low turbidity
c) dissolved mineral salts
d) alkalinity
d) sewage works operators Correct Answer: O. Reg. 129/04 addresses the licensing of:
a) drinking water operators
b) water quality analysts
c) medical officers of health
