WorksheetsIntroduction to Engineering Unit 2 Assessment
Total questions: 12
Worksheet time: 6mins
A large group of research laboratories are looking to buy science equipment. The picture shows a large glass graduated cylinder they are currently purchasing from company A.
They would like to have new graduated cylinders that are lightweight and durable. They must also be much cheaper than the glass cylinders and delivered quickly. Company B is offering to design and make a new version of this cylinder, which will be made of plastic and much smaller. Which evaluation describes how well company B is meeting the laboratories’ needs?
Choose the correct answer.
Company B is meeting the criteria.
Company B is meeting the constraints.
Company B is meeting the criteria and constraints.
Company B is meeting one criteria and one constraint.
Students are testing steam quality. They are transporting sensitive equipment a long distance to the testing site at the stream. They have come up with a large list of criteria for transporting the equipment safely. How can they best evaluate which criteria are most important?
Choose the correct answer.
select some criteria from the list randomly
select criteria based on which ones were thought of first
use a rating scale to identify the importance of each criterion
ask their friends what they think the most important criteria are
Melissa is designing a bridge that needs to withstand the weight of large transport trucks moving across the bridge. Which is the best way for her to find out if her design will support the moving trucks?
Choose the correct answer.
build a prototype and use a toy truck to carry heavy weights across
do some research online about the success of similar bridge designs
ask other bridge builders whether or not they think it will hold the trucks
survey truck drivers to see if they would drive their trucks over that design
William thinks the design of his go-cart is too heavy and needs to be lighter. He comes up with a number of solutions and evaluates the constraints and criteria. One of his main constraints that affected most of his solutions was cost. Which next step would be the best one for William to take in order to solve this problem?
Choose the correct answer.
Make models for all the solutions and test them.
Try to raise money to build and test all the solutions.
Go back to the drawing board and start a new design.
Choose a solution and make a model based on that choice.
The engineering design process may result in a solution to a particular problem. Even after developing and testing the design solution, engineers continue the testing part of the process. Which statement explains why engineers would continue this part of the process?
Choose the correct answer.
They made some minor errors in the initial design solution.
They are not confident that the design solution really works.
They want to make sure the design solution still gives the same results.
They want to optimize the design solution in response to the test results.
Claire works at her family’s restaurant. Claire has noticed there is a problem with getting enough clean dishes at the time that food is ready to be served. She studied the amount of time it takes for dishes to be washed versus the time it takes for food to be prepared. She created a flow chart to help her find a solution.
Which action will Claire most likely take to solve this problem?
Choose the correct answer.
use process optimization
use the iterative design process
conduct a risk-benefits analysis
increase the number of steps in the chart
A company is trying to design new carbon monoxide detectors that register carbon monoxide at a level of 5 parts per million (ppm). The company engineers decide that the detector needs improvement and start designing new versions. They develop each new version based on new ideas and the features that worked in the previous one. They continue testing each new version in the process. Which process does this best describe?
Choose the correct answer.
making trade-offs
the iterative design process
process and system optimization
evaluating advantages and disadvantages
An engineer develops a prototype of a hair dryer based on his first idea. Which statement describes the most likely result of taking this approach?
Choose the correct answer.
It will increase the production efficiency.
It will positively affect the company’s profits.
It will most likely not be an optimized design.
It will increase the cost of building a prototype.
Rosa is trying to find out which material should go into a new mug that keeps beverages warm. She makes a table while studying two materials that are being considered for the mug.
Each mug must be constructed for no more than $2.00 per mug. Rosa chooses the better insulating material, which is also the most expensive. This drives the cost up to $2.25 per mug. Which statement explains Rosa’s decision to go with the more expensive material?
Choose the correct answer.
She is making a tradeoff by selecting the ceramic material.
She is making a tradeoff by selecting plastic foam material.
She is trying to increase the profit for the company that makes the mugs.
She is paying attention to the constraint by selecting the best material for the product.
How is brainstorming used?
Choose the correct answer.
to test which ideas will work and which will not
to determine background knowledge about the problem
to identify possible solutions that might solve the problem
The constraints for the design of a new child’s electric scooter are listed.
must have battery life of 1.5 hours or more must have top speed of at least 12 mph must cost less than $50 to manufacture
Which situation would require the reframing of the electric scooter design?
regulations stating that children’s electric toys may not exceed a speed of 10 mph
regulations stating that batteries on electric scooters must last for at least 60 minutes
regulations stating that children under 14 years old who ride electric scooters must wear helmets
What is the correct order of steps to follow in the engineering design process?
Choose the correct answer.
report the results; identify a need; carry out research and brainstorm solutions; build and test a prototype
identify a need; carry out research and brainstorm solutions; build and test a prototype; report the results
build and test a prototype; report the results; identify a need; carry out research and brainstorm solutions
carry out research and brainstorm solutions; build and test a prototype; report the results; identify a need
