RECF practice questions and answers.
According to the U.S. Dept. of commerce between 2008 and 2018 U.S. STEM jobs are predicted
to grow by __ % compared to a growth rate estimated of just under 10 % for non-STEM jobs.
correct answers 17%
The difference between hardwood and softwood is correct answers Hardwoods are from
deciduous trees, softwoods are from coniferous trees
Quality Control inspects materials during the manufacturing process to correct answers ensure
that each material has the correct characteristics
Composite materials have revolutionized which industry? correct answers Aerospace
what are the five largest fields of engineering? correct answers Chemical, industrial, electrical,
mechanical, civl
Another good way to describe engineering is simply saying that engineering is correct answers
Problem Solving
Select the best definition for what engineering is: correct answers the Use of tools and materials
to create things to solve problems for man
Mercury is known in space history as correct answers the first US manned rocket system
Neil Armstrong correct answers Was the first man to walk on the moon
Alan Shepard correct answers Was the first american in space
It took Apollo 11 how long to fly to the moon? correct answers 3 days
The space shuttle has flown to the moon how many times? correct answers 0
the Gemini program used an Atlas Rocket correct answers False
Spaceship One was the name of the first lunar lander in 1969. correct answers False
The next new fleet of spacecraft to fly to the moon and Mars will incorporate some 40 year old
technologies correct answers True
Man first landed on Mars in 1972 correct answers False
Composite materials are lighter and much less expensive than more traditional materials such as
steel and plastics correct answers False
The Saturn V rocket is the largest rocket ever built correct answers True
, The first moon landing was in 1959 correct answers False
Copper, zinc, and nickel mixed together make an alloy we know as brass correct answers True
Steel nickel and chromium together make an alloy we know as stainless steel correct answers
True
Hardwoods are the most widely used home construction materials correct answers False
Thermoplastics may be recycled correct answers True
Ferrous metals are easy detectable with magnets correct answers True
Composite materials have made it possible for new flying distance records around the earth
correct answers True
Polymer is another name for alloy correct answers False
Quenching, dipping heated metals in oil or water, can change the hardness of the metal correct
answers True
Pine, fir and oak are all hardwoods correct answers False
Vacuum forming is used on thermoplastics correct answers True
What is NOT characteristic of plastics that makes it a good material for manufacturing parts?
correct answers conductive
What are plastics made from? correct answers hydrocarbons
Which of the following are examples of ferrous metals? correct answers Cold rolled steel, iron
and stainless steel
Graphite is a main component in many correct answers Composites
Two main resin families used in composite materials are correct answers Epoxy and ethyl ester
Examples of precious metals: correct answers Platinum, gold and silver
Injection molding is used predominately in correct answers Thermoplastic processes
Wood veneers are used to: correct answers Making plywood and creating thin wood laminates to
cover less expensive woods. (both A and B)
Plastics can only be recycled if correct answers They are thermoplastics
According to the U.S. Dept. of commerce between 2008 and 2018 U.S. STEM jobs are predicted
to grow by __ % compared to a growth rate estimated of just under 10 % for non-STEM jobs.
correct answers 17%
The difference between hardwood and softwood is correct answers Hardwoods are from
deciduous trees, softwoods are from coniferous trees
Quality Control inspects materials during the manufacturing process to correct answers ensure
that each material has the correct characteristics
Composite materials have revolutionized which industry? correct answers Aerospace
what are the five largest fields of engineering? correct answers Chemical, industrial, electrical,
mechanical, civl
Another good way to describe engineering is simply saying that engineering is correct answers
Problem Solving
Select the best definition for what engineering is: correct answers the Use of tools and materials
to create things to solve problems for man
Mercury is known in space history as correct answers the first US manned rocket system
Neil Armstrong correct answers Was the first man to walk on the moon
Alan Shepard correct answers Was the first american in space
It took Apollo 11 how long to fly to the moon? correct answers 3 days
The space shuttle has flown to the moon how many times? correct answers 0
the Gemini program used an Atlas Rocket correct answers False
Spaceship One was the name of the first lunar lander in 1969. correct answers False
The next new fleet of spacecraft to fly to the moon and Mars will incorporate some 40 year old
technologies correct answers True
Man first landed on Mars in 1972 correct answers False
Composite materials are lighter and much less expensive than more traditional materials such as
steel and plastics correct answers False
The Saturn V rocket is the largest rocket ever built correct answers True
, The first moon landing was in 1959 correct answers False
Copper, zinc, and nickel mixed together make an alloy we know as brass correct answers True
Steel nickel and chromium together make an alloy we know as stainless steel correct answers
True
Hardwoods are the most widely used home construction materials correct answers False
Thermoplastics may be recycled correct answers True
Ferrous metals are easy detectable with magnets correct answers True
Composite materials have made it possible for new flying distance records around the earth
correct answers True
Polymer is another name for alloy correct answers False
Quenching, dipping heated metals in oil or water, can change the hardness of the metal correct
answers True
Pine, fir and oak are all hardwoods correct answers False
Vacuum forming is used on thermoplastics correct answers True
What is NOT characteristic of plastics that makes it a good material for manufacturing parts?
correct answers conductive
What are plastics made from? correct answers hydrocarbons
Which of the following are examples of ferrous metals? correct answers Cold rolled steel, iron
and stainless steel
Graphite is a main component in many correct answers Composites
Two main resin families used in composite materials are correct answers Epoxy and ethyl ester
Examples of precious metals: correct answers Platinum, gold and silver
Injection molding is used predominately in correct answers Thermoplastic processes
Wood veneers are used to: correct answers Making plywood and creating thin wood laminates to
cover less expensive woods. (both A and B)
Plastics can only be recycled if correct answers They are thermoplastics
