RECF Practice Questions with Verified Solutions

RECF Practice Questions with Verified Solutions 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. 17% Which of the following engineers work to create roads bridges and tunnels? Civil Engineers The difference between hardwood and softwood is Hardwoods are from deciduous trees, softwoods are from coniferous trees Quality Control inspects materials during the manufacturing process to ensure that each material has the correct characteristics Composite materials have revolutionized which industry? Aerospace what are the five largest fields of engineering? Chemical, industrial, electrical, mechanical, civl Another good way to describe engineering is simply saying that engineering is Problem Solving Select the best definition for what engineering is: the Use of tools and materials to create things to solve problems for man Mercury is known in space history as the first US manned rocket system Neil Armstrong Was the first man to walk on the moon Alan Shepard Was the first american to orbit the earth It took Apollo 11 how long to fly to the moon? 3 days The space shuttle has flown to the moon how many times? 0 the Gemini program used an Atlas Rocket False Spaceship One was the name of the first lunar lander in 1969. False The next new fleet of spacecraft to fly to the moon and Mars will incorporate some 40 year old technologies True Man first landed on Mars in 1972 False Composite materials are lighter and much less expensive than more traditional materials such as steel and plastics False The Saturn V rocket is the largest rocket ever built True The first moon landing was in 1959 False Copper, zinc, and nickel mixed together make an alloy we know as brass True Steel nickel and chromium together make an alloy we know as stainless steel True Hardwoods are the most widely used home construction materials False Thermoplastics may be recycled True Ferrous metals are easy detectable with magnets True Composite materials have made it possible for new flying distance records around the earth True Polymer is another name for alloy False Quenching, dipping heated metals in oil or water, can change the hardness of the metal True Pine, fir and oak are all hardwoods False Vacuum forming is used on thermoplastics True