MIDTERM PRACTICE SOLUTIONS 2026
SOLVED QUESTIONS GRADED A+
⩥ In the management and planning of preprocessing there are five
steps. What are they? Answer: 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? Answer: Production
Planning
⩥ What is the meaning of Fixed Automation? Answer: A process
using mechanized machinery to perform fixed and repetitive
operations in order to produce a high volume of similar parts.
⩥ What is a compact controller that combines the features and
capabilities of a PC-based control system that completes batch order?
Answer: Programmable Automation
⩥ In the post-processing stages of manufacturing, what is
"annealing"? Answer: It softens to relieve stress
⩥ In the post-processing stages of manufacturing, what is
"hardening"? Answer: Increase wear resistance
,⩥ In the post-processing stages of manufacturing, what is
"tempering"? Answer: It increases hardness
⩥ What are factors in the determination of materials selected in the
manufacturing process? Answer: Properties, costs, source availability,
environmental impact, durability (lasting), Non-durable (consumable)
⩥ What are factors in the determination of costs of producing in the
manufacturing process? Answer: materials, people, overhead
⩥ Ferrous metals have a high iron content & are materials such as
what? (4) Answer: iron, steel, stainless steel, magnetic materials
⩥ Non-ferrous metals are nonmagnetic substances such as what? (5)
Answer: aluminum, copper, alloys, zinc, titanium
⩥ What are matrix composites? Answer: 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?
Answer: Polymers
⩥ Plastics that are Thermoset are what? Answer: Not able to be
remelted
,⩥ Reusable plastics are known as what? Answer: Thermoplastics
⩥ What are three examples of Natural Polymers? Answer: wood,
rubber, leather
⩥ What two types of woods are there? Answer: Hardwood- deciduous
Softwood- coniferous
⩥ What are the benefits of wood? Answer: it is abundant, renewable,
easily-shaped, strong & non-corrosive
⩥ Describe what ceramics are made of. Answer: brittle, inert & non-
conducting material made from clay
⩥ What is it when two or more materials are combined for a useful
application? Answer: Composites
⩥ What are three types of composites? Answer: fiberboards,
fiberglass, laminates
⩥ What is the goal of mechanical properties? Answer: For the
material to be strong enough to support the load
, ⩥ In mechanical properties, what is stress? Answer: Response to
external forces
⩥ In mechanical properties, what is shear stress? Answer: force
parallel to the surface
⩥ In mechanical properties, what is tension? Answer: it is the pulling
apart
⩥ In mechanical properties, what is elasticity? Answer: it is the ability
of a structure or object to return to its normal shape
⩥ In mechanical properties, what is compression? Answer: it
measures the load pushing in against the structure
⩥ In mechanical properties, what is torsion? Answer: It is the twisting
force against the structure
⩥ In mechanical properties, what is ductility? Answer: it is a large
deformation before a structure ruptures
⩥ In mechanical properties, what is fracture toughness? Answer: Its
resists cracking
⩥ In mechanical properties, what is fatigue? Answer: is it the static
load over a long period or a dynamic load whn a machine is engaged