Praxis II: Technology Education
Certification Practice Questions
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Raw extraction and harvesting are examples of what?
Ans: Preprocessing
In the management and planning of preprocessing there are five steps.
What are they?
Ans: Design, forecasting, processing planning, select &
sequence operations
What part of the processing has a purpose that is to minimise
production time and costs, efficiently organise the use of resources and
maximise efficiency in the workplace?
Ans: Production Planning
What is the meaning of Fixed Automation?
Ans: A process using mechanized machinery to perform fixed
and repetitive operations in order to produce a high volume of
similar parts.
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What is a compact controller that combines the features and
capabilities of a PC-based control system that completes batch order?
Ans: Programmable Automation
In the post-processing stages of manufacturing, what is "annealing"?
Ans: It softens to relieve stress
In the post-processing stages of manufacturing, what is "hardening"?
Ans: Increase wear resistance
In the post-processing stages of manufacturing, what is "tempering"?
Ans: It increases hardness
What are factors in the determination of materials selected in the
manufacturing process?
Ans: Properties, costs, source availability, environmental
impact, durability (lasting), Non-durable (consumable)
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What are factors in the determination of costs of producing in the
manufacturing process?
Ans: materials, people, overhead
Ferrous metals have a high iron content & are materials such as what?
(4)
Ans: iron, steel, stainless steel, magnetic materials
Non-ferrous metals are nonmagnetic substances such as what? (5)
Ans: aluminum, copper, alloys, zinc, titanium
What are matrix composites?
Ans: holds the reinforcements in an orderly pattern, is
continuous & is a lighter material than reinforcement
What is the name of molecular material formed from carbons?
Ans: Polymers
Plastics that are Thermoset are what?
Ans: Not able to be remelted
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Reusable plastics are known as what?
Ans: Thermoplastics
What are three examples of Natural Polymers?
Ans: wood, rubber, leather
What two types of woods are there?
Ans: Hardwood- deciduous
Softwood- coniferous
What are the benefits of wood?
Ans: it is abundant, renewable, easily-shaped, strong & non-
corrosive
Describe what ceramics are made of.
Ans: brittle, inert & non-conducting material made from clay
What is it when two or more materials are combined for a useful
application?
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