QUESTIONS AND CORRECT
ANSWERS
b) Kilopascals - ans-What units are used to measure water pressure?
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a) Kilowatts
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b) Kilopascals
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c) Horsepower
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d) Head units
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a) Exhaust fan - ans-
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Which of the following is NOT an example of PPE (Personal Protective Equipment)?
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a) Exhaust fan
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b) SCBA
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c) Face shield
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d) Traffic vest
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d) Be the operator with overall operational responsibility of the system - ans-
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Which of the following are operators-in-training NOT allowed to do?
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a) There are no restrictions on the duties of an operator-in-training
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b) Any operational duties if not in the presence of another operator
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c) Anything which could effect the quality of the water/wastewater
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d) Be the operator with overall operational responsibility of the system
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c) The height or energy of water above a specified point - ans-
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Define the term "head" as used in hydraulic systems.
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a) The block of an internal combustions engine
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b) The ability of a piston pump to overcome the force of gravity
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c) The height or energy of water above a specified point
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d) The distance between the liquid level and the cover of a well
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b) Is a greenish/yellow gas with a penetrating odour; is heavier than air - ans-
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Which of the following statements accurately describes some of the properties of chlori
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ne?
, a) I a colourless gas which is toxic to plants and animals; is flammable and explosive
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b) Is a greenish/yellow gas with a penetrating odour; is heavier than air
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c) Is a yellowish gas with an irritating odour; insoluble in water
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d) Is lighter than air; soluble in water and forms a salt which is lethal to microorganisms
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a) chemical compound is formed - ans-
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What happens when two or more different elements combine?
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a) chemical compound is formed
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b) atom is created
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c) molecule is formed
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d) concentration is created
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a) Any space which is not actively ventilated by an electrical ventilation system - ans-
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What is the definition of a confined space?
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a) Any space which is not actively ventilated by an electrical ventilation system
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b) Any space from which exit by an injured worker is difficult
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c) Any space where hazardous gas can accumulate or an oxygen deficient atmosphere
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can occur
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d) Any space where the distance from floor to ceiling is less than 3 metres
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a) Amperes - ans-The flow of electrical current is measured in
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a) Amperes
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b) Ohms
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c) Volts
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d) Watts
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b) contain carbon, hydrogen and oxygen - ans-
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What is meant by the term 'organic compounds'? Chemical compounds that are:
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a) not made from carbon
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b) contain carbon, hydrogen and oxygen
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c) can easily oxidize
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d) can dissolve in water
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d) 450 - ans-
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The volume of chlorine increases ______ times when it is depressurized into gas
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a) 100
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b) 200
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c) 350
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d) 450
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